Photosynthesis (Exam Questions) Flashcards
ATP is an abbreviation. What does it stand for. (3)
Explain briefly the role of ATP in the energy exchanges of a cell (2x3)
-
Give an account of what happens on each of the Pathways (18)
-
What is the fate of each of the products of the light dependant stage(3x3)
-
Graph on rate of photosynthesis in relation to light intensity or CO2 concentration
-
What is the primary role of chloropyhll in photosynthesis (3)
-
write an equation to summarize photosynthesis (6)
-
why is the dark stage given the alternative name the light-independant stage (3)
-
Name a gas that is essential for the dark stage (3)
-
Two products of the light stage are vital for the dark stage. Name each of them. (2x3)
State the precise role in the dark stage of each of the substances that you named above (2x3)
-
To what group of biomolecules do the main products of the dark stage belong (6)
-
Where in the cell does photosynthesis take place
-
Give two sources of carbon dioxide that is found in the atmosphere
-
Suggest one way in which the rate of photosynthesis of plants in a greenhouse could be increased
-
Briefly outline how water from the soil reaches the leaf (6x3)
-
What happens to water molecules when they reach the sites of photosynthesis (3x3)
-
State a precise role for
- Carbon dioxide (3)
- Water (3)
-
Name the openings in the leaf which allow the entry of carbon dioxide for photosynthesis (3)
State a factor which influences the diameter of these openings (3)
-
During photosynthesis oxygen is produced
- From what substance is oxygen produced (3)
- In what stage of photosynthesis is oxygen produced (3)
- Give two possible fates of oxygen following its production (3)
-
Give an account of the role of each of the following in photosynthesis
- ATP (6)
- NADP (6)
-
Where in a plant cell does photosynthesis take place (3)
-
Give the alternative name of the first stage of photosynthesis (3)
-
During the first stage of photosynthesis energised electrons enter two pathways
- where do the energised electrons come from (3)
- Briefly describe the main events of each of these pathways (4x3)
-
In the second stage of photosynthesis compounds of the general formula Cx(H20)y are formed.
What name is given to this group of compund (3)
-
From which simple compound does the plant obtain the H used to make compounds of the general formula Cx(H20)y (3)
-
Name the simple compound that supplies the neccessary energy for the second stage reactions (3)
-
