AP Bio Ch 10
What portion of an illuminated plant cell would you expect to have the lowest pH?
Thylakoid space
NADPH and ATP from the light reactions are both needed
To reduce 3-phosphoglycerate to G3P
How many "turns" of the Calvin cycle are required to produce one molecule of glucose?
6
How many turns of the Calvin cycle are required to produce one molecule of glucose?
6
The chlorophyll known as P680 has its electron "holes" filled by electrons from
Water
Chloroplasts can make carbohydrate in the dark if provided with
ATP and NADPH and CO2
Cyclic photo photophosphorylation results in the production of
ATP only
Which of the following is mismatched with its location?
ATP synthase-double membrane surrounding chloroplast
Noncyclic electron flow along with chemiosmosis in the chloroplast results in the production of
ATP, NADPH, and O2
Accessory pigments within chloroplasts are responsible for
Absorbing photons of different of different wavelengths of light and passing that energy to P680 or P700
What does rubisco do?
Adds CO2 to RuBP in the carbon fixation space
Chemiosmotic synthesis of ATP occurs in
Both respiration and photosynthesis
Photosynthesis is a redox process in which
CO2 is reduced and water is oxidized
CAM plants avoid photorespiration by
Fixing CO2 into organic acids during the night; these acids then release CO2 during the day
In the chemiosmotic synthesis of ATP in chloroplast, H+ diffuses through the ATP synthase
From the thylakoid into the stroma
Blue light had more energy than red light. Therefore, blue light
Has a shorter wavelength than red light
Where in the cell is ATP-Synthase located?
In the thylakoid membrane of the chloroplast and in the cristae membrane of mitochondria
A difference between electron transport in photosynthesis and respiration is that in photosynthesis
Light provides the energy to push electrons to the top of the electron chain, rather than energy from the oxidation of food molecules
ATP is produced in
Light-dependent reactions
Electrons flow through an electron transport chain in
Light-dependent reactions
Oxidative photophosphorylation occurs in
Light-dependent reactions
Oxygen is released in
Light-dependent reactions
Reduction of NADP+ occurs in
Light-dependent reactions
Carbon gets reduced in
Light-independent reactions
Oxidation of NADPH occurs in
Light-independent reactions
What are the final electron acceptors for the electron transport chains in the light reactions of photosynthesis and in cellular respiration?
NADP+ in the light reactions and O2 in reapiration
Oxidation of NADP+ occurs in
Neither respiration nor photosynthesis
How does cyclic electron flow differ from non-cyclic electron flow?
No NADPH is produced by cyclic electron flow. No O2 is produced by cyclic electron flow.
Which one of the following is NOT required for photosynthesis to occur?
O2
In green plants, most of the ATP for synthesis of proteins, cytoplasmic streaming, and other cellular activities comes directly from
Oxidative phosphorylation
Electrons that flow through the two photosystems have their highest potential energy in
Photoexcited P700
Plants give off oxygen as a waste product of photosynthesis. This oxygen comes from
Photolysis
Reduction of CO2 occurs in
Photosynthesis
Which of the following is NOT directly associated with PSII?
Production of NADPH
Oxidative phosphorylation occurs in
Respiration
Reduction of NAD+ occurs in
Respiration
Reduction of oxygen occurs in
Respiration
In C4 plants, the Calvin Cycle
Takes place in the bundle-sheath cells
A spectrophotometer can be used to measure
The absorption spectrum of a substance
Six molecules of G3P formed in the Calvin cycle are used to produce
Three molecules of RuBP and one G3P
