4. Photosynthesis

Question 1

which molecule is reduced during photosynthesis?

Answer 1

CO2

Question 2

which molecule is oxidized during photosynthesis?

Answer 2

H2O

Question 3

what does a photosystem consist of?

Answer 3

a reaction-center complex + several light-harvesting complexes

Question 4

what is included in light-harvesting complexes?

Answer 4

chlorophyll b + carotenoids

Question 5

the difference between chlorophyll a and chlorophyll b?

Answer 5

ch a has a CH3 group in its poriferan ring, while ch b has a CHO group instead

Question 6

which inorganic element is found in chlorophyll a?

Answer 6

Magnesium

Question 7

is the chlorophyll’s tail hydrophilic or hydrophobic

Answer 7

hydrophobic, reacts with hydrophobic zones of the thylakoid proteins

Question 8

how many electrons does NADP+ require to be reduced to NADPH?

Answer 8

2 electrons

Question 9

H2O photolysis reaction gives:

Answer 9

2H+ + 2e + 1/2O2

Question 10

PS2 wavelength

Answer 10

680 nm

Question 11

PS1 wavelength

Answer 11

700nm

Question 12

productions of linear electron flow

Answer 12

ATP and NADPH