Have an account?
Skip to Content
Build your own quiz
Suggestions for you
17 questions
Show Answers
See Preview
- 1. Multiple Choice
Plants use the following reactants for the light reaction
Water and CO2
Water and NADPH
Water and NADP+
NADPH and ATP
- 2. Multiple Choice
Photosynthesis goal is to
convert light energy into glucose energy
use light energy to make oxygen gas
convert sugar energy into ATP
convert sugar energy into oxygen gas
- 3. Multiple Choice
Rubisco is important in which step of photosynthesis
energizing the electrons in chlorophyll
carbon fixation when CO2 is connected to RUBP during calvin cycle
regeneration phase as RUBP is made during calvin cycle
reduction of the carbon chain during the calvin cycle
- 4. Multiple Choice
If the proton (H+) pump in the thylakoid was not working which molecule could not be made during the light reaction?
NADPH
ATP
Water
Oxygen gas
- 5. Multiple Choice
The NADP+ is
oxidized during the light reaction
reduced during the light reaction
oxidized during the Calvin cycle
reduced during the Calvin cycle
- 6. Multiple Choice
Which of the following would have the least affect on photosynthetic rate?
increase the temp from 20 C to 30 C
increasing the CO2 from 400 ppm to 600ppm
increasing the light intesity from 40 Watts to 60 Watts
increasing the amount of O2 from 20% to 30% in the air
- 7. Multiple Choice
Plants obtain CO2 into the chloroplast by
active transport
diffusion
facilitated diffusion
endocytosis
- 8. Multiple Choice
Photosystems are made of
chloroplasts
chromosomes
chlorophyll
cytoplasm
- 9. Multiple Choice
ATP is made during the light reaction using all of the following EXCEPT
proton pump
hydrogen ion gradient
electron energy from photosystem II
NADPH donating electrons
- 10. Multiple Choice
What is FALSE about the calvin cycle
uses the light reactions products
produces a three carbon sugar (G3P)
produces carbon dioxide
produces NADP+
- 11. Multiple Choice
During noncyclic photophosphorylation all of the following occur EXCEPT
ATP is made using electron energy that will leave on NADPH
results in oxygen gas being produced
water is split (photolysis)
electrons from photosystem 1 return back to photosystem 1
- 12. Multiple Choice
Why does photorespiration occur?
stomata are closed and CO2 levels are too low.
stomata are closed and O2 levels are too low.
stomata are open and too much water is leaving the plant
stomata are open and the plant receives too much CO2
- 13. Multiple Choice
What does a C4 plant do?
stores CO2 in a separate cell from its photosynthetic cell during the day
stores CO2 in a vacuole during the night.
can't store CO2 so it sufferes photorespiration
can't store CO2 so it speeds up cellular respiration in order to make more CO2
- 14. Multiple Choice
Plants that store CO2 at night as an acid in a vacuole are called
C3 plants
C4 plants
CAM plants
- 15. Multiple Choice
Which plant LACKS CO2 storage method
C3
C4
CAM
- 16. Multiple Choice
What happens to the oxygen levels if a plant were left in the dark over night?
go up due to photosynthesis
go down due to cell respiration
stay the same since stomata are closed
- 17. Multiple Choice
An increase in CO2 in the air would most likely
increase photosynthesis
increase cell respiration
increase photorespiration
increase transpiration
- Answer choicesTagsAnswer choicesTags