3.Define the following terms and describe their major functions inplants. Please provide sufficient detail in your answer. (3 markseach)
a) Waterpotential
b) Transpiration
c) Photorespiration
d) Casparian strip
e) Fertilization
4. a)Describe what is meant by "chemiosmosis". (5 marks)
b) What are the similarities anddifferences between chemiosmosis in mitochondria and chemiosmosisin chloroplasts? (5 marks)
6. Describe in detail the functions of: (5 marks)
a) Rubisco in C3 plants.
b) PEP carboxylase in C4 plants.
7. If you were given a leaf and asked to determine whether itwas from a monocot or a dicot plant, what three features would youlook for? (6 marks)
8. Assume you are a plant. Describe six features you mustpossess which would ensure you are cross-pollinated. (6 marks)
9. It was reported in the news that a person who talked to herhouse-plants for 10-15 minutes daily could stimulate the growth ofthese plants. Can you speculate on what might cause this improvedgrowth? (3 marks)
10. (5m) a) What are the main problems facing organisms whichbreath water?
b) What specific features does the gill have to overcoming theseproblems?
11. (7m) a) Compare the structures of and the blood flow in thecirculatory systems of fish, amphibians and mammals.
b) Explain the advantages of the mammalian system over the twoother systems.
3.Define the following terms and describe their major functions inplants. Please provide sufficient detail in your answer. (3 markseach)
a) Waterpotential
b) Transpiration
c) Photorespiration
d) Casparian strip
e) Fertilization
4. a)Describe what is meant by "chemiosmosis". (5 marks)
b) What are the similarities anddifferences between chemiosmosis in mitochondria and chemiosmosisin chloroplasts? (5 marks)
6. Describe in detail the functions of: (5 marks)
a) Rubisco in C3 plants.
b) PEP carboxylase in C4 plants.
7. If you were given a leaf and asked to determine whether itwas from a monocot or a dicot plant, what three features would youlook for? (6 marks)
8. Assume you are a plant. Describe six features you mustpossess which would ensure you are cross-pollinated. (6 marks)
9. It was reported in the news that a person who talked to herhouse-plants for 10-15 minutes daily could stimulate the growth ofthese plants. Can you speculate on what might cause this improvedgrowth? (3 marks)
10. (5m) a) What are the main problems facing organisms whichbreath water?
b) What specific features does the gill have to overcoming theseproblems?
11. (7m) a) Compare the structures of and the blood flow in thecirculatory systems of fish, amphibians and mammals.
b) Explain the advantages of the mammalian system over the twoother systems.
