Photosynthesis

Question 1

what is the source of energy and carbon for most living things

Answer 1

photosynthesis

Question 2

what does present of O2 allow

Answer 2

most efficient cell respiration
ozone layer -> life on land

Question 3

how many stages does photosynthesis have

Answer 3

2

Question 4

what is the name and what happens in the 1st stage of photosynthesis

Answer 4

light-capturing reactions;
light energy harnessed to produce chemical energy

Question 5

• what transformation of chemicals happens in the mist stage?(not the only one

Answer 5

H20 -> O2

Question 6

what happens in the 2nd stage of photosynthesis?

Answer 6

takes the chemical energy from the 1st stage and produce 2nd form of chemical energy

Question 7

the 2nd form of chemical energy is in bonds of a carb, where is the carbons come from?

Answer 7

C02

Question 8

What happened in progress of 2nd stage?

Answer 8

regenerates energy carriers for 1st stage
ATP —- ADP + Pi
NADPH —- (NADP+) + (H+)

Question 9

What is the key to everything going on

Answer 9

regeneration of carriers (NADPH & ATP)
everything will stop without this;
like the ETC and first 3 stages of cell respiration

Question 10

what is the site of photosynthesis?

Answer 10

chloroplast

Question 11

Chloroplast exist in what kinds of organisms

Answer 11

plants and other photosynthetic eukaryotes

Question 12

why are chloroplasts in leaves but not in roots

Answer 12

light for the first stage of photosynthesis

Question 12

which stage of photosynthesis is chloroplasts use?

Answer 12

both

Question 13

how many membranes does chloroplast have

Answer 13

3

Question 14

what does the flattened structures called

Answer 14

thylakoids

Question 15

what is the benefits of thylakoids?

Answer 15

increase surface area, houses important enaymes

Question 16

what is the pace between thylakoid membrane and the middle “inner membrane” called?

Answer 16

stroma

Question 17

what are pigments?

Answer 17

also part of thylakoid membrane

Question 18

color of a pigment due to ______

Answer 18

wavelength not absorbed

Question 19

why are plants green

Answer 19

this color is not used in photosynthesis

Question 20

what light is absorbed the most

Answer 20

violet/blue and red light

Question 21

(algal cells and aerotactic bacteria) oxygen seeking bacteria will gather in what color of light?

Answer 21

violet/blue, red
left and right sides

Question 22

two main forms of photosynthesis pigments

Answer 22

chlorophylls and carotenoids

Question 23

chlorophylls and carotenoids differ in

Answer 23

structure
absorption spectrum
main function

Question 24

absorb and appear color of chlorophylls

Answer 24

absorb purple/blue and red light
appear green

Question 25

absorb and appear color of carotenoids

Answer 25

absorb blue/green
appear yellow or orange