List in order the 6 steps of the scientific method.
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Transcript of List in order the 6 steps of the scientific method.
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Today’s Goal: Reinforce cellular biology including:
-structure function of organelle
-Cell Transport
-Cell Division
1. Locate your bright ORANGE Core 40 Review Notes.
What are the chemicals of life?
Elements Building Blocks
Uses
CarbohydratesEx-sugar,starch
C,H,O Mono-saccharides
Energy
LipidsEx-butter, oil
C,H,O Fatty Acids & glycerol
Energy
ProteinsEx-meat, cheese
C,H,O,N,S Amino Acids
Structure, growth & repair
Nucleic AcidsEx-DNA,RNA
C,H,O,N,P Nucleotides
Genetic Information
Examples of nucleic acids include
A.sugars and starches B. DNA and RNA C. amino acids and fatty acids D. fats and proteins
Which of the following is not normally a function of proteins
in healthy cells?
A. long-term energy storage B. functioning as enzymes C. a component of cell
membranes
Which of the following is an example of an organic chemical
compound?
A. carbon dioxide, CO2 B. sufur trioxide, SO3 C. sodium chloride, NaCl D. glucose, C6H12O6
Types of CellsOrganelles and Functions
TransportationEnergy
PhotosynthesisRespiration Cell Division
How are cells organized?
CellTissue – functioning
group of cellsOrgan – functioning
group of tissuesOrgan System –
functioning group of organs
Organism – functioning group of organ systems
What is homeostasis?
Homeostasis Steady State Self-adjusting mechanism that helps to
maintain your internal environment
How do cells transport materials?
Diffusion- movement of materials form a higher concentration to a lower concentration Hypertonic Hypotonic Isotonic
Osmosis- diffusion of water through a Membrane
How do cells transport materials?
Passive transport is the movement of materials without energy Diffusion, osmosis,
facilitated diffusionActive Transport
requires energy Pumps, exocytosis,
endocytosis
Outside the Cell
Inside the Cell
Enlarged
Name the Organelle?
Found in Plant Cells, Animal
Cells or Both?
List the three parts of the Cell Theory.
1. All living things are made of cells.
2. Cells are the basic units of life.
3. All cells come from pre-existing cells.
These molecules are located in the hydrophobic region of the membrane and strengthen the
membrane.
Cholesterol
Scientists call the model they have developed to represent the
structure of the plasma membrane the ______ ________ model.
Fluid Mosaic
The cytoskeleton is made up of what three components?
Present your answers!
Microtubules, microfilaments, and intermediate filaments
Where can you find ribosomes in a cell?
Present your answers!
On rough ER, and in the cytoplasm (also in the
nucleolus when they are being made
What are the two types of Endoplasmic reticulum and what
is the structural difference between the two types?
Present your answers!
Smooth and Rough – rough have ribosomes attached
What does the ER do for the cell?
Rough – modifies proteins
Smooth – makes lipids and breaks down drugs and alcohol
What type of molecules are inside lysosomes? (These molecules are
what make the breaking down happen.)
Enzymes
What is the function of a central vacuole?
A place for plants to store water, minerals, and waste;
strengthens the cell and helps support the entire plant
What do chloroplasts do for the cell?
Convert energy from sunlight to chemical or food energy;
perform photosynthesis
What is the function of the mitochondria?
Present your answers!
To make energy (the power plant of the cell)
Types of CellsOrganelles and Functions
Transportation
EnergyPhotosynthesis
Respiration Cell Division
What is photosynthesis?
6 CO2 + 6H2O C6H12O6 + 6O2
Occurs in chloroplasts
Two parts: Light reaction Calvin cycle (dark reaction)
Where Does A Cell Get Energy?
Cellular respiration, glucose is broken down to a form the cell can use.
Energy is stored in an ATP molecule (adenosine triphosphate) .
What is Respiration?
The process of breaking down food molecules to release energy
Occurs in the mitochondriaTwo types:
Aerobic – requires oxygen Anaerobic – occurs without oxygen
C6H12O6 + 6O2 6CO2 + 6H2O + energy
Asexual vs. Sexual Reproduction
ASEXUAL Diploid cells produced
by mitosis, binary fission
Identical copy produced
SEXUAL Gametes, haploid
cells, produced by meiosis
Gametes combine during fertilization to produce diploid cell
First diploid cell known as a zygote
Zygote grows into an embryo through mitosis
Infinite possibilities
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Core 40 Test Practice
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Batter Up!Batter Up!
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Today’s Goal:
• Reinforce Cellular Chemistry and Structure.
1.Place your Ecology Study Guide out for 10 pt. completion grade.
2.Cells Study guide due Friday.