quiz 9

Question 1

What is the role of water in photosynthesis?

Answer 1

used for P680.
H20 is brought in due to the unstableness of the P680 chlorophyll at this point is able to split water and gain 1 electron
-another h20 is brought to replace the next electron lost by P680

Question 2

What stage of photosynthesis (light dependent, light independent……..photosystem 1 or 2) does the role of water take place?

Answer 2

Light dependent photosystem 2

Question 3

What stage of photosynthesis (light dependent, light independent……..photosystem 1 or 2) does the O2 biproduct of photosynthesis originate, what original compound does this O2 come from?

Answer 3

light dependent, photosystem 2
-water is the original compound
-

Question 4

What are the two main products from light dependent reactions that are needed to fuel the light independent reactions?

Answer 4

ATP and NADPH

Question 5

Are the intermediate molecules in the light independent reaction (PGA, G3P for instance) getting oxidized or reduced by NADPH?

Answer 5

reduced

Question 6

In the recycling stage of the light independent reactions, what do the 5 G3P become through the action of ATP, why is this important for the overall cycle of the light independent reaction?

Answer 6

-reduced by ATP to create 3 RUBP, this starts the process over again

Question 7

For plants, when does respiration take place?

Answer 7

day and night

Question 8

When does photosynthesis take place?

Answer 8

day

Question 9

when do we expect a plant to release the most Oxygen?

Answer 9

day

Question 10

When do we expect the plant to take in the most C02?

Answer 10

during the day for photosynthesis

Question 11

For light dependent reactions, at what stage are the ATP produced?

Answer 11

electron transport chain

Question 12

Explain why the chloroplasts and mitochondria are often right next to each other in plant leaf cells

Answer 12

Glucose and 02
immediately go to
mitochondria to run
respiration, ATP from
respiration distributed
around the cell