4.2 Kahoot - exam

Question 1

What organelle does photosynthesis take place in?

Answer 1

chloroplast

Question 2

what does mesophyll tissue do in plants

Answer 2

photosynthesis

Question 3

what is the role of the stomata

Answer 3

to allow gases into and out of the leaves

Question 4

these open and close the stomata

Answer 4

guard cells

Question 5

together, stomata and guard cells regulate

Answer 5

gas exchange and water loss

Question 6

in c3 plants, when are the stomata open

Answer 6

usually during the day

Question 7

where do protons accumulate during photosynthesis

Answer 7

thylakoid space

Question 8

e’ in plant pigments gain energy by

Answer 8

the absorption of light energy

Question 9

a leaf looks green becayse its chlorophyll molecules ___________.

Answer 9

reflect green light and absorb the other frequencies

Question 10

as the absorbance of chlorophyll a increases, the rate of photosynthesis

Answer 10

increases

Question 11

photosystem

Answer 11

a cluster of pigments and proteins that capture light energy

Question 12

antenna complexes

Answer 12

cluster of pigments/proteins that capture light

Question 13

what is the function of the reaction center

Answer 13

to pass excited e’ out of the photosystem

Question 14

what provides the e’ in the light-dependent reactions with the energy to move from the reaction center to the carrier

Answer 14

light

Question 15

where do the light-dependent reactions occur

Answer 15

thylakoid membrane

Question 16

photosystem I has which reaction centre?

Answer 16

P700

Question 17

photosystem II has which reaction centre

Answer 17

P680

Question 18

what is the last protein in the etc of photosynthesis?

Answer 18

NADP+ reductase

Question 19

what is the function of water in photosynthesis

Answer 19

supply e’ to photosystem II

Question 20

how is oxygen made in photosynthesis

Answer 20

its made when water is split apart

Question 21

what protein creates a high concentration of H+ during the light dependent reaction?

Answer 21

b6-f complex

Question 22

the end product of the light-dependent reactions is glucose

Answer 22

false

Question 23

in what part of the cell do the light-dependent reactions create a high concentration of H+ ions?

Answer 23

thylakoid space

Question 24

what happens when a reaction centre is excited

Answer 24

e’ are passed to an e’ acceptor

Question 25

what is the final e’ acceptor in the etc of photosynthesis

Answer 25

NADP+

Question 26

what is photophosphorylation

Answer 26

synthesis of ATP using photon energy

Question 27

this enzyme is responsible for photophosphorylation

Answer 27

ATP synthase

Question 28

cyclic photophosphorylation accomplishes what

Answer 28

increases H+ pumping to the thylakoid space

Question 29

what is the process called that increases ATP production in photosynthesis

Answer 29

cyclic phosphorylation

Question 30

where do the light-independent reactions occur

Answer 30

stroma

Question 31

the passing of one electron pair along the etc in photosynthesis creates how many molecules

Answer 31

1 ATP and 1 NADPH

Question 32

which photosystem is involved in cyclic phosphorylation

Answer 32

photosystem I

Question 33

describe the path of e’ in cyclic phosphorylation

Answer 33

P700 –> e- acceptor –> e- carrier –> b6-f complex -> e- carrier –> P700

Question 34

what supplies the e’ in the light dependent reactions

Answer 34

water

Question 35

what is the light-independent phase also known as

Answer 35

the calvin cycle

Question 36

what is the starting material of the calvin cycle

Answer 36

RuBP

Question 37

in the calvin cycle, what is the 3 carbon product that exits the cycle

Answer 37

G3P

Question 38

how many CO2 must enter the calvin cycle to produce a single glucose

Answer 38

6

Question 39

what is the 1st phase of calvin cycle

Answer 39

carbon fixation

Question 40

what enzyme is responsible for “fixing” carbon during photosynthesis

Answer 40

rubisco

Question 41

G3P rearranges to form what molecule in the calvin cycle

Answer 41

RuBP

Question 42

what is the first stable organic compound after carbon is fixed in the calvin cycle

Answer 42

3-phosphoglycerate

Question 43

if 3 CO2 enter the calvin cycle, how many 3-phosphoglycerate molecules are made?

Answer 43

6

Question 44

what occurs in the 2nd phase of calvin cycle

Answer 44

reduction reactions

Question 45

for 3 CO2, how many ATP and NADPH are used during the reduction step of calvin’s cycle

Answer 45

6 and 6

Question 46

what molecule is made during the reduction step of calvin’s cycle

Answer 46

G3P

Question 47

the G3P that leaves the calvin cycle must always form glucose

Answer 47

false

Question 48

what is required to regenerate RuBP in phase 3 of calvin cycle

Answer 48

5 G3P and 3 ATP

Question 49

to make 1 glucose molecule takes…

Answer 49

6 CO2, 18 ATP, 12 NADPH

Question 50

photorespiration

Answer 50

process of fixing O2 instead of CO2 by rubisco

Question 51

when does rubisco to bind oxygen sometimes?

Answer 51

when oxygen levels in a leaf are high

Question 52

C4 and CAM plants use a different cycle than calvin’s to create glucose

Answer 52

false

Question 53

why have some plants adapted to use C4 or CAM photosynthesis

Answer 53

to protect against water loss in dry environments

Question 54

how do CAM and C4 plants store CO2 for later use in calvin’s cycle

Answer 54

convert it to a 4-C molecule

Question 55

in what type of cell do C4 plants store CO2

Answer 55

mesophyll cell

Question 56

in what type of cell do C4 plants perform most of Calvin’s cycle

Answer 56

bundle-sheath cell

Question 57

how are CAM plants different than C3 plants?

Answer 57

CAM plants open their stomata at night