It’s the Final Countdown!!! Keystone Review. Module 1 Basic Biological Principles The Chemical...

It’s the Final Countdown!!!

Keystone Review

Module 1 Basic Biological Principles

The Chemical Basic of Life

Bioenergetics

Homeostasis and Transport

Standards…… Describe the characteristics of life shared by all

prokaryotic and eukaryotic organisms

Compare cellular structures and their functions in prokaryotic and eukaryotic cells

Cells

Name the two major types of cells

Cells

Name the two major types of cells

ANSWER: Prokaryotic and Eukaryotic

Cells

What type of organisms are prokaryotic and eukaryotic?

Cells

What type of organisms are prokaryotic and eukaryotic?

ANSWER: Prokaryotic cells are Bacteria and Archaea ONLY.

Eukaryotic cells are Animals, Plants, Fungi and Protists

Cells

Okay speaking of cells what 4 structures do ALL cells have?

Cells

Okay speaking of cells what 4 structures do ALL cells have?

ANSWER: Cell membrane, DNA, cytoplasm and ribosomes

Cells….Standard Check

Unlike prokaryotic cells, eukaryotic cell have the capacity to

a. Assemble into multicellular organisms

b. Establish symbiotic relationships with other organsims

c. Obtain energy form the Sun

d. Store genetic information in the form of DNA


Unlike prokaryotic cells, eukaryotic cell have the capacity to

Eukaryotic cells are capable of specialization and forming multi-cellular organisms

a. Assemble into multicellular organisms

b. Establish symbiotic relationships with other organsims

c. Obtain energy form the Sun

d. Store genetic information in the form of DNA


Inside eukaryotic cells are membrane-bound structures called

a. Cell walls

b. Cilia

c. Organelles

d. cytoplasm


Inside eukaryotic cells are membrane-bound structures called

Remember membrane bound structures are organelles

a. Cell walls

b. Cilia

c. Organelles

d. cytoplasm

Standards…… Describe and interpret relationships between

structure and function at various levels of biological organization (i.e. organelles, cells, tissues, organs, organ system and multicellular organisms.)

Organization of Living Things

What are life’s levels of organization?


What are life’s levels of organization?

ANSWER: Cell-tissue-organ-organ system-organism


Give me an example of each level of organization for humans.



Cells



Tissues



Organs



Organ System

Organism

Really I think you can get this ONE!

Biological OrganizationStandard Check

Which statement best explains why these cells have structural differences?

A. The cells have different functions

B. The cells evolved in different organisms

C. One of the cells develops into the other type of cell

D. One of the cells is more primitive than the other cell.


Bacteria are single-celled microorganisms. The cell walls of these microorganisms serve as barriers to chemicals that might affect the processes that occur within a bacterial cell. Antibiotics are a type of substance used to stop bacterial growth. Some antibiotics cause the bacterial cell wall to rupture.

NOTE: Use this information to answer the following questions:


The function of which human organ is most like the cell walls of bacteria?

A. Skin

B. Liver

C. Heart

D. pancreas


The function of which human organ is most like the cell walls of bacteria?

A. Skin

B. Liver

C. Heart

D. Pancreas

NOTE: the cell walls of bacteria act as regulatory structures similair to the skin of humans.


Which statement best describes how antibiotics affect cellular homeostasis?

A. Antibiotics remove chloroplasts from plant cells to cause starvation.

B. Antibiotics interfere with the transport of intracellular and extracellular materials

C. Antibiotics increase the rate of DNA replication in human cells by forming nucleotides.

D. Antibiotic decrease the rate of cellular respiration in animal cells by producing oxygen.


Which statement best describes how antibiotics affect cellular homeostasis?

A. Antibiotics remove chloroplasts from plant cells to cause starvation.

B. Antibiotics interfere with the transport of intracellular and extracellular materials

C. Antibiotics increase the rate of DNA replication in human cells by forming nucleotides.

D. Antibiotic decrease the rate of cellular respiration in animal cells by producing oxygen.

Note: Homeostasis is maintained by different processes to regulate an organism’s internal conditions. The antibiotic describe in the scenario causes the cell wall to rupture and the cell to burst, so there can no longer be regulation of transport across the plasma membrane.


Okay so you’re pretty smart but remember

cells are made up of organelles, organelles are made up of macromolecules,

macromolecules and made up of molecules and

molecules are made up of ATOMS….

Organization of Living Things-Cell Organelles

It is very important that you know all the structures and and their functions. Questions relating to this standard may ask you to describe the organelles function…

Nucleus, nucleolus, cell membrane, golgi apparatus, er (smooth and rough), lysosomes, vesicles, vacuoles, chloroplast, mitochondria, cell wall, centrioles, cytoplasm,and everything else

So let’s go

Cell Organelles…Standard Check

What organelle in the cell supplies energy to carry out the cells functions?a. Golgi apparatusb. Nucleusc. Mitochondriad. Chloroplast


What organelle in the cell modifies, packages and ships protein and lipid products out of the cell?a. Golgi apparatusb. Nucleusc. Mitochondriad. Chloroplast


The functions of which cell structure are described in this list?a. lysosomeb. mitochondriac. the plasma membraned. the endoplasmic reticulum

-allows waste to exit the cell-allows chemicals required for cellular respiration to enter the cell-regulates movement of water into and out of the cell


The functions of which cell structure are described in this list?a. lysosomeb. mitochondriac. the plasma membraned. the endoplasmic reticulum

NOTE: the structure of the plasma membrane allows it to function in regulating the movement of water and other materials into and out of the cell

-allows waste to exit the cell-allows chemicals required for cellular respiration to enter the cell-regulates movement of water into and out of the cell

Properties of Life Properties or characteristics of life

All living things are made up of one or more cells All living things metabolize All living things maintain stable internal conditions All living thing contain DNA All living things reproduce

Remember: living things also, evolve over time, respond to stimuli, grow and develop

Properties of LifeStandard Check

Which characteristic of life is best shown by the diagram?

a. DNA is the genetic code in an organism.

b. An organism is made up of one or more cells

c. An organism responds to changes in the environment

d. Changes occur in an organism as it grows and develops


A jackrabbit has large ears containing blood vessels that help it maintain a constant body temperature by adjusting heat exchange with the surrounding environment. Which characteristic of life is best described by this example?

a. Growthb. Energy usec. Organizationd. Homeostasis


A jackrabbit has large ears containing blood vessels that help it maintain a constant body temperature by adjusting heat exchange with the surrounding environment. Which characteristic of life is best described by this example?

a. Growthb. Energy usec. Organizationd. Homeostasis

Note: The process of adjusting heat exchange is an example of maintaining a stable internal environment, which is homeostasis.

Properties of LifeStandard

Explain how organisms maintain homeostasis (e.g. thermoregulation, oxygen regulation).

NOTE: Organisms maintain their internal equilibrium by responding and adjusting to environmental stressors. Example: Aquatic organisms must respond to changes in water temp., sunlight, chemicals, and other organisms.

Living cells must balance between materials entering and exiting the cell. It is important for a cell to maintain internal concentrations of water, glucose, and other nutrients, whole eliminating cellular wastes

Standards…… Describe the unique properties of water, and how

these properties support life on Earth (e.g. freezing point, high specific heat, cohesion)

Properties of Water Water is the most abundant compound on Earth’s

surface, constituting about 70% of the planet’s surface. In nature it exists in liquid, solid and gaseous states.

Water is polar because the oxygen side is slightly negative and the hydrogen side is slightly positive. The three atoms are constantly at a “tug of war” for their electrons. This polarity helps water bond to other substances………

Properties of Water So what are the properties of water?

What is cohesion?


What is cohesion?

ANSWER: When water sticks to itself, this is because of the hydrogen bonds that form between the negative oxygen side and the positive hydrogen side.


What is adhesion?


What is adhesion?

ANSWER: When water sticks to other polar substances such as leaves on a tree.


So remember cohesion vs adhesions

Properties of Water

So what are the properties of water?

What is surface tension?


What is surface tension?

ANSWER: The top layer of water that is very strong, sue to the cohesion forces of the hydrogen bonds

Properties of Water


What is capillary action?


What is capillary action?

ANSWER: Movement of water against gravity. Because of cohesion and adhesion water rise up narrow tubes in plant stems

Properties of Water


What is high specific heat?


What is high specific heat?

ANSWER: Waters ability to resist change in temperature, important concept because it helps organisms retain body heat and resist freezing in cold temps.

Properties of Water


What do we mean by the following? Water is a universal solvent.


What do we mean by the following? Water is a universal solvent.

ANSWER: Water can dissolve many polar and ionic substances. This is important to life because of all the chemical reactions that take place in an aqueous environment.

Properties of Water


Okay so water is the Universal Solvent, what do we mean by solvent, solute and solution?


Okay so water is the Universal Solvent, what do we mean by solvent, solute and solution?

Answer: Solvent is the substance that does the dissolving.

Solute is the substance that is dissolved.

Solution is the combination of the solute and solvent.

Properties of Water


What is special about density and water?

Properties of Water


What is special about density and water?

ANSWER: Since solid water is less dense than liquid water, ice floats.

Density is the measure of compactness of a substance..

Properties of WaterStandard Check

Which statement best describes an effect of the low density of frozen water in a lake?

A. When water freezes, it contracts, decreasing the water level in a lake.

B. Water in a lake freezes from the bottom up, killing most aquatic organisms.

C. When water in a lake freezes, it floats, providing insulation for organisms below.

D. Water removes thermal energy from the land around a lake, causing the lake to freeze.


Which of the following is a property of water that allows a water strider to walk on the surface of water? A. Solubility B. Cohesion C. High specific heat D. Low freezing point


Which of the following is a property of water that allows a water strider to walk on the surface of water? A. Solubility

B. Cohesion

C. High specific heat

D. Low freezing point

Note: Cohesion is a property of water that describes the attraction of water molecules to one another, which creates high surface tension that keeps water strider on top of the water.

Standard

Explain how carbon is uniquely suited to form biological macromolecules.

Describe how biological macromolecules form from monomers.

Properties of Carbon

Carbon is the second most abundant substance in living organisms.

Carbon can share FOUR electrons, therefore it can bond to four additional elements.

Carbon establishes covalent bond (high energy bonds)

Carbon molecules have strength, flexibility, and can chemically react to other atoms.

Properties of Carbon

Properties of CarbonStandard Check

Which statement correctly describes how carbon’s ability to form bonds makes it uniquely suited to form macromolecules?

a. If forms short, simple carbon chains

b. If forms large, complex, diverse molecules

c. It forms covalent bonds with other carbon atoms

d. It forms covalent bonds that can exist in a single plane

Standard

Compare the structure and function of carbohydrates, lipids proteins and nucleic acids.

NOTE: Carbohydrates, lipids, proteins and nucleic acids are the foundation for the structure and function of every living cell in every organism. They are the building materials of the body and the storehouse for energy for every activity.

Macromolecules

Macromolecules

NOTES: Carbohydrate- CHO ratio 1:2:1

Monosaccharides, disaccharides, oligiosaccharides and polysaccharides

Examples: glucose, sucrose and starch In all living organisms, carbohydrates are broken down to provide

usable chemical energy for all cells Cellulose is found in plants and provides structural support (cell wall)

and fiber for us

Macromolecules

NOTES: Lipids: CHO a whole bunch of CHCHCHCHCHCH and a little O

Lipids are commonly referred to as fats, oils and waxes They are insoluble in water due to the nonpolarity of the molecules Lipids are used by cells for long-term energy storage Lipids are a major component of cell membranes, phospholipids

Macromolecules

NOTES: Proteins C H O N and sometimes S

This is the most diverse group They are large, complex polymers essential to life They are composed of chains of amino acids Proteins are important for muscle contraction, transporting oxygen in

the blood, and the immune system, they are enzymes and they also are an important component of the cell membrane.

Examples: collagen, enzymes, hemoglobin, insulin, and antibodies are examples of protein

Macromolecules

NOTES: Nucleic Acids

Complex macromolecules that store and transmit genetic information in cells in the form of a code

Nucleic acids are made up of nucleotides The two types of nucleic acids ARE DNA and RNA

NOTE: Nucleotides are the structural units of ATP and NAD+ and NADP+

MacromoleculesStandard Check

Which statement describes the formation of a protein molecule?

a. Amino acids combine to form a protein chain

b. Fatty acid monomers dissolve to form a protein chain

c. Fatty acid monomers combine to form a protein chain

d. Amino Acids dissolve monomers to form a protein chain


Which statement describes the formation of a protein molecule?

a. Amino acids combine to form a protein chainb. Fatty acid monomers dissolve to form a protein chain

c. Fatty acid monomers combine to form a protein chain

d. Amino Acids dissolve monomers to form a protein chain

Note: Proteins are biological macromolecules that form when multiple amino acid monomers are linked together with PEPTIDE BONDS


Student Organic Compound Description 1 Carbohydrates Complex compounds

made of purines and pyrimidines that functionas data-storage molecules

2 Lipids use the relatively high energy contained in C-H bonds to perform their primary function

3 Proteins chains of amino acids that can function as enzymes, hormones and antibodies

4 Nucleic Acids Compounds, produced through photosynthesis

that contain carbon hydrogen and oxygen

MacromoleculesStandard CheckStudent 2 and 3

Student Organic Compound Description 1 Carbohydrates Complex compounds

made of purines and pyrimidines that functionas data-storage molecules

2 Lipids use the relatively high energy contained in C-H bonds to perform their primary function

3 Proteins chains of amino acids that can function as enzymes, hormones and antibodies

4 Nucleic Acids Compounds, produced through photosynthesis

that contain carbon hydrogen and oxygen

Enzymes

Carbonic anhydrase is an enzyme involved in the reaction of carbon dioxide with water to form a molecule that dissolves well in the liquid part of blood. How does carbonic anhydrase affect this reaction?

a. By making the reaction reversible

b. By changing chemical products of the reaction

c. By increasing the time needed for the reaction to occur

d. By decreasing the amount of energy needed to complete the reaction

EnzymesCarbonic anhydrase is an enzyme involved in the

reaction of carbon dioxide with water to form a molecule that dissolves well in the liquid part of blood. How does carbonic anhydrase affect this reaction?a. By making the reaction reversible

b. By changing chemical products of the reaction

c. By increasing the time needed for the reaction to occur

d. By decreasing the amount of energy needed to complete the reaction

Note: An enzyme can act as a catalyst that regulates specific biochemical reactions and decreases the amount of energy needed for a reaction to occur

EnzymesDon’t forget enzyme terminology

-Active site-Substrate-Enzyme-Enzyme/substrate complex-Product

Enzyme: Lock and Key Mechanism

Enzymes

Enzymes-are catalytic molecules

-they speed up chemical reactions without being used up in the reaction

-enzymes are PROTEINS

- each enzyme catalyzes only one Specific type of reaction

Enzymes

Critical Thinking……

The rate of a reaction depends in part on the concentration of the enzyme. If the enzyme is diluted, its concentration is lowered, which slows the reaction rate

Enzymes

Tell Me What this graph is showing!

EnzymesStandard Check

Food is commonly refrigerated at temperatures 20C to 70C to slow the rate of spoilage by bacteria. Which of the following best explains why refrigeration at these temperatures slows the spoilage of food?

a. Bacteria that cause food spoilage are killed by these low temperatures

b. Bacteria that cause food spoilage multiply rapidly at these temperatures

c. The enzymes in bacteria that cause food spoilage are not active at these temperatures

d. The enzymes in bacteria that cause food spoilage are denatured at these temperatures

Standard

Describe the role of ATP in chemical reactions

ATP All life on Earth depends on the

flow of energy.

Primary source of energy is the Sun

Photosynthesis convert solar energy to chemical energy (carbohydrates) and then the carbohydrates are broken down by the metabolism of organisms.

ATP ATP is adenosine triphosphate

ATP stores and releases the energy in its bonds in response to the energy need of the cell

Stored energy is released when ATP is split into ADP

ATPBy removing a phosphate group, energy is released for chemical reactions to occur in the cell, ATP becomes ADP.

ATPStandard Check

A protein in a cell membrane changed its shape to move sodium and potassium ions against their concentration gradients. Which molecule was most likely used by the protein as an energy source?

a. ATPb. ADPc. Catalased. Amylase

Standard Describe the fundamental roles of plastids

(chloroplast) and mitochondria in energy transformations

Compare the basic transformation of energy during photosynthesis and cellular respiration.

Energy

Cells use energy for making new molecules, building cell organelles, making membranes, maintaining homeostasis etc.

Energy-Photosynthesis Plants, algae and other photosynthetic

organisms are important to the maintenance and balance of life on Earth.

They convert solar energy to chemical energy in the form of carbohydrates

NOTE: photosynthetic organisms must also break down carbohydrates to form ATP.

Energy-Photosynthesis

Energy-Photosynthesis Two Main Reactions of Photosynthesis

1. Light Dependent Reaction Theses reactions split water molecules, providing hydrogen and an

energy source for the Calvin cycle. Oxygen is given off!

2. Calvin cycle, dark reaction or the Light Independent Reaction A series of reactions that form simple sugars using carbon dioxide

and hydrogen from water.

NOTE: The light reaction is the photo part of photosynthesis. The Calvin cycle is the synthesis part of photosynthesis.


Light Dependent Reaction Takes place in the chloroplasts at the thylakoid. A

stack of thylakoids is called grana.

The chlorophyll and other light-absorbing molecules absorb the energy from the sunlight.


Light Independent Reaction Takes place in the chloroplasts in the stroma. Carbon dioxide from the air combines with

hydrogen from the light reaction to form simple sugars.

Simple sugars form to make complex sugars, starches and cellulose.

NOTE: AKA Dark reaction and Calvin Cycle

Energy-Cellular Respiration

Two Main Reactions of Cellular Respiration

1. Krebs Cycle

breaks down the products of Glycolysis to produce molecules used in the electron

transport chain.

2. Electron Transport Chain (ETC)

consists of a series of proteins in the mitochondrial membranes that convert

ADP to ATP by transferring electrons


1. Krebs Cycle

1. Takes place in mitochondria and breaks down products of glycolysis

2. CO2 is released and 2 ATP’s produced

3. The main function of Kreb Cycle is to move high energy electrons to molecules for the electron transport chain


1. ETC

1. Takes place in and across the inner membrane of the mitochondria.

2. High energy electrons travel through the proteins and makes 32-34 ATP molecules

3. Releases carbon dioxide

Respiration and Photosynthesis

Standard CheckIn glycolysis, the first stage of cellular respiration, ATP

molecules are produced. What is the net gain of ATP molecules (per molecule of glucose) from glycolysis?

a. 1

b. 2

c. 4

d. 36


Standard CheckIn glycolysis, the first stage of cellular respiration, ATP

molecules are produced. What is the net gain of ATP molecules (per molecule of glucose) from glycolysis?

a. 1

b. 2 Remember 4 made two needed=2 net

c. 4

d. 36


Standard Check1. Cellular respiration and photosynthesis both involve water.

2. Cellular respiration uses sugar, and photosynthesis produces sugar.

3. Cellular respiration and photosynthesis both use light to produce energy.

4. Cellular respiration requires light energy, and photosynthesis requires chemical energy.

Which two statements correctly describe one similarity and one difference between cellular respiration and photosynthesis?

a. Statements 1 and 2

b. Statements 1 and 4

c. Statements 2 and 3

d. Statements 3 and 4


Standard CheckThe diagram shows an energy transformation that typically occurs in

plant cell plastids. Which statement best describes this role of plastids in the plant?

a. Chloroplast transform light energy into chemical energy

b. Mitochondria transform light energy into chemical energy

c. Chloroplasts transform chemical energy into electromagnetic energy

d. Mitochondria transform chemical energy into electronegative energy

StandardDescribe how the structure of the plasma membrane

allows it to function as a regulatory structure and/or protective barrier for the cell.

Compare the mechanisms that transport materials across the plasma membrane.

Cell MembraneCell Membrane: Function boundary and regulator

As an active regulator the cell membrane helps to maintain the proper concentrations of substances inside the cell

Selectively permeability Allows certain materials to pass through the

membrane while keeping others out

Cell MembraneCell Membrane:

Cell MembraneTransport of materials

Cell Membrane:

Cell MembraneTransport of materials-

Standard CheckWhich of the following examples illustrates osmosis?

a. Water leaving the tubules of the kidney in response

to the hypertonic fluid surround the tubules

b. Digestive enzymes are excreted into the small intestine

c. White blood cells consume pathogens and cell

debris at the site of infection

d. Calcium is pumped inside a muscle cell after the

muscle cell completes its contraction


Standard CheckWhich of the following examples illustrates osmosis?

a. Water leaving the tubules of the kidney in

response to the hypertonic fluid surrounding

the tubules

b. Digestive enzymes are excreted into the small intestine

c. White blood cells consume pathogens and cell

debris at the site of infection

d. Calcium is pumped inside a muscle cell after the

muscle cell completes its contraction


Standard CheckCRQ- During physical education class, some students ran one mile. After their run, the students

recorded changes they experienced.

Changes Experienced Sweating Muscle cramps Decreased energy Increased heart rate Increased breathing rate Increased thirst Increased body temp

Select three changes experienced by the students and explain how each change can represent a homeostatic mechanism.


Standard CheckCRQ Sweating an represent a homeostatic mechanism because when

your body is hot it cools itself by activating the sweat glands which cool you by evaporation

Increased heart rate….because when you run your muscles need more oxygen and blood so your heart pumps faster to abide to those needs

Increased thirst….because it is caused by sweating out moisture which your body then wants to replenish causing your body to tell you to drink

Decreased energy …because when you exercise your body uses all of its energy to do so, so you loose your energy and become tired until your body regains it

WHAT IS?

An educated guess/prediction; usually in “If…Then” form

WHAT IS?

An educated guess/prediction; usually in “If…Then” form

ANSWER: hypothesis

What is

The factors that are measured in an experiment

WHAT IS?

The factors that are measured in an experiment

ANSWER: variable (s)

WHAT IS?

The variable that you purposely change

WHAT IS?

The variable that you purposely change

ANSWER: Independent

WHAT IS?

The variable that changes in response to changing the independent variable.

WHAT IS?

The variable that changes in response to changing the independent variable.

ANSWER: Dependent Variable

WHAT IS?

Things that are purposely kept the same in an experiment

WHAT IS?

Things that are purposely kept the same in an experiment

ANSWER: Constants

WHAT IS?

A structured way to test a hypothesis

WHAT IS?

A structured way to test a hypothesis

ANSWER: Experiment

WHAT IS?

Baseline measurement used to compare you data to

WHAT IS?

Baseline measurement used to compare you data to

Answer: Control

WHAT IS?

Testable multi step process for solving problems

WHAT IS?

Testable multi step process for solving problems

ANSWER: Scientific Method

WHAT IS?

Category: Characteristics Of Life

Either sexually or asexually

WHAT IS?

Either sexually or asexually

ANSWER: Reproduction

WHAT IS?


Maintaining internal conditions usually quite different than the external environment

WHAT IS?


Maintaining internal conditions usually quite different than the external environment

ANSWER: Homeostasis

WHAT IS?


Traits that are passed on to offspring

WHAT IS?


Traits that are passed on to offspring

ANSWER: Heredity

WHAT IS?


Smallest unit of life

WHAT IS?


Smallest unit of life

ANSWER: cell

WHAT IS?


Get and use energy in order to carry out life functions

WHAT IS?


Get and use energy in order to carry out life functions

ANSWER: metabolism

WHAT IS?


Ability of populations to change over time

WHAT IS?


Ability of populations to change over time

ANSWER: Evolution

WHAT IS?

Group of cells that carry out a similar function

WHAT IS?

Group of cells that carry out a similar function

ANSWER: Tissue

WHAT IS?

A single living thing

WHAT IS?

A single living thing

ANSWER: organism

WHAT IS?

A group of organs that work together to perform a function (s)

WHAT IS?

A group of organs that work together to perform a function (s)

ANSWER: organ system

WHAT IS?

A group of tissues that carry out a specialized function in the organism

WHAT IS?

A group of tissues that carry out a specialized function in the organism

ANSWER: Organ

WHAT IS?

A group of organisms that look similar and can produce fertile offspring

WHAT IS?

A group of organisms that look similar and can produce fertile offspring

ANSWER: species

WHAT IS?

A group of different species that live in the same habitat and interact with one another

WHAT IS?

A group of different species that live in the same habitat and interact with one another

ANSWER: biological community

WHAT IS?

A community of organisms and their non living environment

WHAT IS?

A community of organisms and their non living environment

ANSWER: Ecosystem

WHAT IS?

A group of organisms of the same species that live in the same area and can interbreed

WHAT IS?

A group of organisms of the same species that live in the same area and can interbreed

ANSWER: Population

WHAT IS?

All of the world and its atmosphere that supports life is

WHAT IS?

All of the world and its atmosphere that supports life is

ANSWER: biosphere

WHAT IS?

Characteristics of Water

Water is _________ because it has an unevenly distributed charge

WHAT IS?


Water is _________ because it has an unevenly distributed charge

ANSWER: Polar

WHAT IS?


Bond that forms between water molecules because they are polar is

WHAT IS?


Bond that forms between water molecules because they are polar is

ANSWER: Hydrogen bond

WHAT IS?


Property where water sticks to water

WHAT IS?


Property where water sticks to water

ANSWER: cohesion

WHAT IS?


Property where water sticks to other polar or charged substances is

WHAT IS?


Property where water sticks to other polar or charged substances

ANSWER: adhesion

WHAT IS?


Process by which water travels up something…..due to cohesion and adhesion

WHAT IS?


Process by which water travels up something…..due to cohesion and adhesion

ANSWER: capillary action

WHAT IS?


Property of water that allows bugs and lizards to walk on water

WHAT IS?


Property of water that allows bugs and lizards to walk on water

ANSWER: surface tension

WHAT IS? Characteristics of Water

Time for a “thinkie” question

Water has high heat capacity, why is that important to living organisms?

ANSWER: surface tension

WHAT IS? Characteristics of Water

Time for a “thinkie” question

Water has high heat capacity, why is that important to living organisms?

ANSWER:High heat capacity means it takes a lot of energy to raise or lower its temperature, this is important because it helps organisms maintain homeostasis by keeping a constant body temp.

It’s the Final Countdown!!! Keystone Review. Module 1 Basic Biological Principles The Chemical...

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