Download Pre-AP Unit 3 Homework

Pre-AP Unit 3 Homework
Chapter 7
1. Construct a 3-way Venn diagram for plant, animal, and bacterial cells. Label whether
prokaryotic or eukaryotic.
2. Describe an analogy from everyday life for a plasma membrane.
3. Write one analogy each for the following: simple diffusion, facilitated diffusion, active
transport, endocytosis, exocytosis.
4. Explain why grocery stores mist vegetables with water. What happens on the cellular
level?
5. Predict what would happen if a freshwater fish were transplanted into the ocean.
6. Describe 2 examples of specialized cells and explain their unique role in the human
body.
7. Is your tongue a tissue, an organ, or an organ system? Explain your answer.
Chapter 8
6. Explain how light energy affects a chlorophyll molecule.
7. If a plant is kept under green colored light for an extended period of time, what will
happen to the plant’s food production?
8. What effect does weather have on the process of photosynthesis?
9. If there is no light coming into the chloroplasts, how will this affect the Calvin cycle?
10. If you place a plant in a clear, sealed box, how could you use a measurement of the
gases in the boxed air to measure the rate of photosynthesis? What gas would you
measure?
11. In which part of photosynthesis is oxygen produced? Which reactant does it come
from?
Chapter 9
1. Categorize as one of the following: cellular respiration, glycolysis, lactic acid
fermentation, or alcoholic fermentation:
a. important in baking bread
b. builds up in muscles after a few seconds of intense activity
c. requires oxygen and glucose
d. produces 2 ATP molecules and pyruvic acid
e. almost the opposite process of photosynthesis
f. the reason why runners breathe heavily after a race
g. important in making yogurt
3. Would a baseball player running to 1st base and a cross-country skier use the same or
different pathways to release energy? Explain your answer.
4. Categorize as cellular respiration or photosynthesis:
a. reactants are carbon dioxide and water
b. occurs only in plants, algae, and some microorganisms
c. 6O2 + C6H12O6
6CO2 + 6H2O + energy
d. uses oxygen to release energy from food
e. takes place in chloroplast
f. takes place in mitochondria
g. traps light energy in chemical bonds
Chapter 10
1. Match each description with the correct phase of mitosis:
a. The chromosomes line up across the middle of the cell
b. chromosomes become visible
c. centrioles separate
d. sister chromatids separate into individual chromosomes
e. 2 new nuclear envelopes form
f. the nucleolus disappears, and the nuclear envelope breaks down
g. each chromosome attaches to a spindle fiber
3. How does an animal cell differ from a plant cell during cell division?
4. Describe how skin cells respond to an injury and heal it.