UNIT 1 Vocabulary Cell Asexual reproduction DNA Hypothesis Homeostasis Theory Controlled experiment...
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![Page 1: UNIT 1 Vocabulary Cell Asexual reproduction DNA Hypothesis Homeostasis Theory Controlled experiment Scientific method Classification Taxonomy Variable.](https://reader035.fdocuments.in/reader035/viewer/2022062407/56649e9d5503460f94b9e983/html5/thumbnails/1.jpg)
UNIT 1 Vocabulary
• Cell
• Asexual reproduction
• DNA
• Hypothesis
• Homeostasis
• Theory
• Controlled experiment
• Scientific method
• Classification
• Taxonomy• Variable• Dichotomous key• Bacteria• Binary Fission• Diffusion• Osmosis• Prokaryotic Cells
![Page 2: UNIT 1 Vocabulary Cell Asexual reproduction DNA Hypothesis Homeostasis Theory Controlled experiment Scientific method Classification Taxonomy Variable.](https://reader035.fdocuments.in/reader035/viewer/2022062407/56649e9d5503460f94b9e983/html5/thumbnails/2.jpg)
Smallest unit of life that contains all the materials necessary for
life.• Cells
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The genetic material found in all living organisms• DNA
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The ability for all living things to maintain a stable internal
environment is called
• Homeostasis
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An experiment that tests only one variable at a time
• Controlled experiment
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The arrangement of organisms into orderly groups based on their
similarities
• Classification
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The factor in a controlled experiment that can change
• Variable
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The smallest and simplest organisms on the planet
• bacteria
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The tendency of molecules to move from an area of high
concentration to an area of low concentration
• Diffusion
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A single parent produces offspring that are identical to the
parent.• Asexual reproduction
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A hypothesis that has been supported by lots of evidence and
experiments• Theory
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The diffusion of water molecules from an area of high concentration to low
concentrationOsmosis
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A series of steps a scientist uses to answer or solve a problem
• Scientific method
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Tool used to identify unknown organisms
Dichotomous Key
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A cell with no nucleus Example: Bacteria
• Prokaryotic cell
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A possible explanation or answer to a scientific question
• hypothesis
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Type of asexual reproduction used by bacteria, one cell splits
into two.
• Binary Fission
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The science of identifying, classifying, and naming living
organisms
• Taxonomy
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Found in all cells of living organisms, and contains the
blueprint of life.
• DNA
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The movement of molecules from an area of high
concentration to an area of low concentration.
• Diffusion
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Now it will get a bit harder…I will give you only two or three words and you will need to give
me the vocabulary word they define.
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Vocabulary
• Cell
• Asexual reproduction
• DNA
• Hypothesis
• Homeostasis
• Theory
• Controlled experiment
• Scientific method
• Classification
• Taxonomy• Variable• Dichotomous key• Bacteria• Binary Fission• Diffusion• Osmosis• Prokaryotic Cells
![Page 23: UNIT 1 Vocabulary Cell Asexual reproduction DNA Hypothesis Homeostasis Theory Controlled experiment Scientific method Classification Taxonomy Variable.](https://reader035.fdocuments.in/reader035/viewer/2022062407/56649e9d5503460f94b9e983/html5/thumbnails/23.jpg)
Steps scientist take
Scientific Method
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Smallest unit of life
Cells
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Possible explanation
Hypothesis
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Supported by Evidence
Theory
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Genetic Material
DNA
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No nucleus
Prokaryotic Cell
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Identify, classify, naming
Taxonomy
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Stable, internal, environment
Homeostasis
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Cell Division, asexual
Binary Fission
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Grouping by similarities
Classification
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Diffusion of Water
Osmosis
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Molecules, High to low
Diffusion
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Tool to identify
Dichotomous key
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One parent, identical
Asexual reproduction
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Factor that changes
Variable
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Now a bit harder…. I will show you a picture.. What word does it
describe?
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Dichotomous Key
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Diffusion
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Binary Fission
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DNA
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Cells (building blocks of Life)
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Taxonomy
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Scientific Method
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Prokaryotic Cell
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Osmosis
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Homeostasis
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Bacteria Review
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Which of these characteristics describe bacteria?
a) Unicellular
b) No Nucleus
c) Has a cell Wall
d) Reproduces asexually
e) All of the above
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This Bacteria cell is reproducing by which method?
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Asexual reproduction- ONE parent
Binary Fission
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An organism made up of only one cell is called?
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Unicellular Organism
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What are the two kingdoms of bacteria?
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Archaebacteria Eubacteria
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A cell with no nucleus is called ___________
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Prokaryotic cell- NO NUCLEUS!
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The genetic material found in all living organisms is called _____.
Blue print of Life
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DNA
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The building blocks of Life, also contains all materials necessary
for life.
Smallest unit of Life
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Cells
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Bacteria can move using a long whip-like tail called a _______
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Flagella
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What tool can scientist use to identify organisms?
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Dichotomous Key
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After forming a hypothesis, a scientist can….
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Set up a controlled experiment
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Name an organism that reproduces by binary fission.
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E-coli, streptococcus, halophiles, methanogens, thermophiles
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Transport in which molecules move from a LOW concentration to an area of High concentration.
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Active Transport
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The diffusion of water is called _________.
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Osmosis
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The ability to maintain a stable internal environment is called
___________.
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Homeostasis
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Name the 4 eukaryotic kingdoms
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Plants, Protist, Animal, Fungi
• They all HAVE nuclei in their cells.
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What did Carleus Linneaus do?
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Came up with the science of Taxonomy.
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Which of the following is NOT a characteristic of all living things
a)Obtain and use energy
b) Reproduce either sexually or asexually
c) Respond to stimuli in their environment
d) Adapt to changes in the environment
e) Move to obtain their food and water
f) Are unicellular or multicellular
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NOT a Characteristic
e) Move to obtain their food and water
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An organism that can make its own food using energy from the
sun is called• Producer or Autotroph
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An organism that breaks down the remains of dead organisms
• Decomposer
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What shape is the bacteria below?
Baccilli
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What shape is this bacteria?
Spirilla
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What process of active transport is occurring below?
Endocytosis
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What is the arrow pointing to?
Flagellum
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What is the arrow pointing to?
DNA
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Which of the following is a decomposer?
A
B
C
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Name The Kingdom
• Unicellular
• No nucleus
• Has a cell wall
• Decomposer
• Lives in a salty environment
ARCHAEBACTERIA
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Name The Kingdom
• Multicellular
• Autotroph
• Has a cell wall
• Has a chloroplast for photosynthesis
• Ex: Rose Bush
Plant
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Name The Kingdom
• Multicellular
• Heterotroph
• No cell Wall
• Very complex
Animal
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Name the Kingdom
• Unicellular
• No Nucleus
• Asexual Reproduction
• Found Everywhere
• Example: E. coli
Eubacteria
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Multiple Choice
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Carlous Lineaus is given credit for
a) Discovering the cell
b) Coming up with a way to classify and name organisms
c) Inventing the microscope
d) First using a dichotomous key
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Which of the following best describes bacteria?
a) Single-celled, have a nuclei
b) Single-celled, do not have a nuclei
c) Multi-celled, have a nuclei
d) Multi-celled, have no nuclei
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______ feed on dead matter and recycle nutrients back into the soil.
a) Producers
b) Consumers
c) Aerobes
d) decomposer
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The three main types of archaebacteria are
a) methane-makers, salt lovers, heat lovers
b) Soil lovers, oxygen lovers, water lovers
c) Multicellular, Unicellular, Prokaryotic
d) Eukaryotic, Prokaryotic, Unicellular
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Which of the following requires no energy from the cell?
a) Osmosis
b) Endocytosis
c) Exocytosis
d) None of these
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Which of the following in NOT a common shape of bacteria?
a) Spherical
b) Spiral
c) Cubic
d) Rod-shaped
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Which of the following would use binary fission to reproduce?
A B
C
D
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What type of reproduction is being shown in the picture?
A) Binary Fission
B) Sexual Reproduction
C) Asexual Reproduction
D) Fragentation
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At which point in conducting a controlled experiment should a conclusion be drawn?
A) As soon as the procedure is plannedB) As the variables are selectedC) Once the hypothesis is developedD) After the data is obtained and analyzed
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A student wanted to look at plant growth in five different soil samples. He planted the same type of seeds in identical containers and left them together in full sunlight. He gave each plant the same amount of water and charted the growth of each plant stem. What is being tested in this experiment?
A) Which soil type helped plants grow best?
B) How much light do plants need?
C) Which container do plants grow best in?
D) Do plants need to start from seeds?
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The scientific name for the common house cat is Felis domesticus. What
is its species name?
A) Felis
B) Domesticus
C) Cat
D) None of the above
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Which question cannot be answered scientifically because the quantity
cannot actually be measured?
a) How happy is a chimpanzee when it finds it’s food?
b) How fast can a swallow-tailed butterfly fly?
c) How heavy is a mature female elephant?d) How much food can a water buffalo
consume in one day?
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A biology class in Virginia conducted a survey of the plant species found on their school grounds. They found several plants that they didn’t recognize. What resources would be most helpful to the class in identifying the plants species?
a) A book about Virginia plant adaptations
b) A biology book
c) A dichotomous key on Virginia plant species
d) Local Home and Garden Newspaper Articles.
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A prediction was made that the best conditions for earthworm growth occur when there are fewer than five earthworms per
cubic meter of soil. This prediction is called a
A) Law
B) Theory
C) Hypothesis
D) Conclusion
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18. Single-celled organisms can reproduce and create cells exactly like themselves without combining genes from two different parent cells. When they do this, they use a type of
a. asexual reproduction.
b. gamete formation.
c. natural selection.
d. sexual reproduction.
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The tendency of molecules to move from an area of High concentatrion to an area of Low concentration, ________________.A) endocytosisB) ExocytosisC) MitosisD) Diffusion