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Protons build up in the _______________ during photosynthesis chemiosmosis.

a. Thylakoid membranes

b. Thylakoid space

c. Inner membrane of the chloroplast

d. Stroma Intermembrane space between the outer and inner membrane

e. Outer membrane of the chloroplast

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Related questions

Question 1 The membrane structures inside the chloroplast are called the ______, while the fluid surrounding the stacks of membrane is called the ______.
a. stroma; thylakoid
b. thylakoid; cytosol
c. thylakoid; stroma
d. thylakoid; matrix
e. matrix; thylakoid

Question 2 What is considered the ultimate source of energy for living things on Earth?
a. the sun
b. electrons
c. green plants
d. oxygen
e. ATP

Question 3 Why do most plant leaves appear green?
a. They contain a lot of starch which has a green color.
b. They have chloroplasts which absorb green light for photosynthesis.
c. During the light reaction phase carbon dioxide is converted to oxygen which emits green light.
d. They have chloroplasts which absorb all colors of light except for green, which is reflected.
e. During the dark reaction phase water is converted to oxygen which emits green light.

Question 4 Plants perform only photosynthesis, not respiration. True False

Question 5 What is the primary purpose of the light reactions of photosynthesis?
a. to create oxygen gas
b. to produce glucose
c. to convert solar energy to chemical energy (in the form of ATP and NADPH) to power the dark reactions
d. to remove carbon dioxide gas from the atmosphere
e. to create water

Question 6 The light dependent reactions occur in the:
a. mitochondrial membrane.
b. mitochondrial matrix.
c. stroma.
d. thylakoid membrane.
e. cytosol.

Question 7 The energy to run the dark reactions of photosynthesis is produced _________.
a. by the CO2 initially used in the dark reactions.
b. during glycolysis
c. during the light reaction phase
d. during the Krebs cycle
e. during anaerobic respiration

Question 8 Which of the following substances could be totally eliminated and not interfere with the process of photosynthesis?
a. O2
b. H2O
c. light
d. CO2

Question 9 What product(s) do plants produce during photosynthesis that is/are used by humans and other animals?
a. carbon dioxide
b. carbon dioxide and water
c. glucose and oxygen
d. glucose
e. oxygen

Question 10 Only plants can carry out photosynthesis. True False

Question 11 During the light reactions of photosynthesis, ...
a. oxygen is produced from H2O.
b. glycolysis occurs.
c. the Krebs cycle occurs.
d. CO2 is combined into glucose.
e. ATP is broken down to ADP + P

Question 12 The reactants of photosynthesis are:
a. sugar.
b. sugar and water.
c. O2 and CO2
d. O2 and sugar.
e. CO2 and water.

Question 13 During the dark reaction phase of photosynthesis in plants...
a. ATP is created.
b. H+ ions are moved into the stroma from the matrix.
c. molecules of CO2 are combined into sugar.
d. H2O is split into oxygen and H+.
e. solar energy is converted to chemical energy.

17. The occurrence of ___________ in essentially all living cells indicates that this process evolved very early in the evolution of life.
A. phagocytosis
B. oxidative phosphorylation
C. fermentation
D. photophosphorylation
E. glycolysis

18. Where does the citric acid cycle (Krebs cycle) occur?
A. between the envelope membranes
B. on the photosystem II reaction center (P680)
C. in the mitochondrial matrix
D. in the chloroplast stroma
E. in the intermembrane space

19. The ATP made during fermentation results from which metabolic process?
A. no ATP is made during fermentation
B. chemiosmosis
C. substrate-level phosphorylation
D. oxidation of NADH
E. photophosphorylation

20. A biology 208 student ground up some plant cells and centrifuged the homogenate. The supernatant was fractionated further. One fraction included an organelle that contained some DNA, released CO2 and took up O2. This organelle most likely is a:
A. nucleus
B. chloroplast
C. mitochondrion
D. vacuole
E. virus

Are these answers correct?

State whether it is possible that the following proteins are cotranslationally translated into the ER.

a. A protein that resides in an endosome. YES

b. A protein that will be secreted into the extracellular space. YES

c. A nuclear protein. NO

d. An integral plasma membrane protein. YES

e. A protein that resides between the inner and outer nuclear membranes. YES

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