Unit 3
Ch 7 Cell Structure and Function
7.1
1 Review What is a cell
Explain What three statements make up the cell theory
Infer How did the invention of the microscope help the development of the cell theory
2 Review How do microscopes work
Apply Concepts What does it mean if a micrograph is “false-colored”
7.2
1 Review What is the function of lysosomes
Review what is the difference between rough and smooth ER
Infer You examine an unknown cell under a microscope and discover that the cell contains
chloroplasts. From What type of organism does the cell likely come
2 Review Why is the cell membrane sometimes referred to as a fluid mosaic? What part of the cell
membrane acts like a fluid? And what makes it like a mosaic?
Explain How do the properties of lipids help explain the structure of a cell membrane
Infer Why do you think it’s important that cell membranes are selectively permeable?
7.3
1 Review What happens during diffusion
Explain Describe the process of osmosis
Compare and Contrast What is the difference between diffusion and facilitated diffusion
2 Review How is active transport different from passive transport
Explain Describe the two major types of active transport
7.4
1 Review What is cellular specialization
Explain How do cellular junctions and receptors help an organism maintain homeostasis
2 Description Use an area in your life- school sports, etc…, to construct an analogy that explains why
specialization and communication are necessary for you to function well.
Ch 8 Photosynthesis
8.1
1 Review What is ATP and what is its role in the cell”
Explain How does the structure of ATP make it an ideal source of energy for the cell
Use Analogies Explain how ADP and ATP are each like a battery. Which one is partially charged and
which one is fully charged- why?
2 Review What is the ultimate source of energy for plants
Explain How do heterotrophs obtain energy? How is this different from autotrophs?
3 Interdependence Recall that energy flows and nutrient cycles through the biosphere. How does the
process of photosynthesis impact both the flow of energy and the cycling of nutrients?
8.2
1 Review Why are pigments such as chlorophyll needed for photosynthesis
Predict How well would a plant grow under a pure yellow light- Explain
2 Review What is the function of NADPH
Infer How would photosynthesis be affected if there were a shortage of NADP+ in the cells of plants.
3 Visual Thinking Draw two leaves- one green and one orange. Show which colors of visible light are
absorbed and which are reflected by each leaf.
8.3
1 Review Summarize what happens during the light dependant reactions
2 Explain How do each of the three primary factors affect the rate of photosynthesis
3 Review What are the different ways that plants cope with water shortages
Ch 9 Cellular Respiration
9.1
1 Review Why do all organisms need food
Relate Cause and Effect Why do macromolecules differ in the amount of energy they contain
2 Apply Concepts How does the process of cellular respiration maintain homeostasis at the cellular level
Use Analogies How is the chemical energy in glucose similar to money in a savings account
9.2
1 Review What happens to pyruvic acid in the Krebs cycle
Interpret Visuals Look at the diagram of the Krebs cycle. List all the products that are made and include
what happens to each one
2 Review How does the ETC use the high energy electrons from glycolysis and the Krebs cycle
Relate Cause and Effect How does the cell use the charge differences that build up across the inner
mitochondrial membrane during cellular respiration
9.3
You have opened a bakery selling bread. Unfortunately most people find the bread too heavy. Using
what you know about chemical reactions (Ch 2).
1 Make a list of factors that might affect the enzyme catalyzed fermentation process.
2 Predict how each factor will affect the rate of fermentation.
3 Propose a solution to making the break light by adding more bubbles to your bread recipe.
Ch 10 Cell Growth and Division
10.1
1 Review Identify two reasons why a cell’s growth is limited
Explain As a cell’s size increases, what happens to the ration of its surface area to volume ratio
Applying Concepts Why is a cell’s surface to volume ratio important
2 Visual Thinking The formula for finding the surface of area of a sphere is A=4πr2. The formula for
finding the volume of a sphere is V=4/3r3.
Calculate the surface area
and the volume for the baseball
and basketball. Then write the
ratio of surface are to volume for each.
Baseball r = 3.6 cm Basketball r = 12.2 cm
10.2
1 Review What are chromosomes
Compare and Contrast How does the structure of chromosomes differ in prokaryotes and eukaryotes
2 Review What happens during each of the four phases of mitosis- write one or two sentences about
each
Predict What do you think would happen if the spindle fibers were disrupted during metaphase
10.3
1 Review Name the two types of proteins that regulate the cell cycle and how do they work
Form a Hypothesis Write a hypothesis about what you think would happen if cyclins were injected into
a cell during mitosis. How would you test your hypothesis
2 Compare and Contrast How are the growth of a tumor and the repair of a scrape on your knee similar
and how are they different
3 Infer Why do you think it is important that cells have a “control system” to regulate the timing of cell
division
10.4
1 Review What happens during differentiation
2 Review What are stem cells
Compare and Contrast How are embryonic stem cells and adult stem cells alike and how are they
different
3 Form an Opinion How might technological advances help address the ethical concerns surrounding
stem cell research