bioenergetics

Question 1

bio energy transformation obeys the laws of?

Answer 1

themrodynamics

Question 2

In photosynthesis CO2 is r/o?

Answer 2

reduced

Question 3

CO2 is reduced to _ in photosynthesis

Answer 3

Glucose

Question 4

H2O is r/o in photosynthesis

Answer 4

Oxidized

Question 5

Water is oxidized into _ in photosynthesis

Answer 5

Oxygen

Question 6

Reducing agent in photosynthesis is?

Answer 6

Water

Question 7

oxidizing agent in photosynthesis?

Answer 7

Molecular O2

Question 8

range of visible light?

Answer 8

380-750nm

Question 9

wavelength most effective for photosynthesis?

Answer 9

Blue ( 430 nm ) Red ( 670 nm )

Question 10

pigments are embedded in?

Answer 10

thylakoid of chloroplast

Question 11

major pigments of plant are?

Answer 11

chlorophyll and carotenoids

Question 12

pigment of chlorophyll a

Answer 12

bluish green

Question 13

chlorophyll a present in all photosynthetic organism except

Answer 13

photosynthetic bacteria

Question 14

pigment of chlorophyll b

Answer 14

yellow green

Question 15

chlorophyll b present in all photosynthetic organism except

Answer 15

brown red algae, photosynthetic bacteria

Question 16

type of chlorophyll in photosynthetic bacteria?

Answer 16

bacteriochlorophyll

Question 17

Molecular formula of chlorophyll a?

Answer 17

C55 H72 O5 N4 Mg

Question 18

Molecular formula of chlorophyll b?

Answer 18

C55 H70 O6 N4 Mg

Question 19

Head of chlorophyll has?

Answer 19

Porphyrin ring with Mg in center

Question 20

1 porphyrin ring has

Answer 20

4 pyrrole ring

Question 21

each pyrrole ring consists of?

Answer 21

4 Carbon
1 Nitrogen

Question 22

The _ atom of pyrrole ring interact with Mg atom

Answer 22

Nitrogen

Question 23

The head of chlorophyll is?

Answer 23

Light absorbing
Hydrophillic

Question 24

the tail of chlorophyll has?

Answer 24

Phytol tail

Question 24

Difference between chlorophyll a and b?

Answer 24

Chlorophyll a ----> has Methyl CH3 group on 2nd pyrrole ring Chlorophyll b -----> has Carbonyl CHO group on 2nd pyrrole ring

Question 25

Formula of phytol

Answer 25

C20H39

Question 26

Nature of chlorophyll tail?

Answer 26

Hydrophobic

Question 27

Nature of carotenoids?

Answer 27

Terpenoid lipids

Question 28

Carotenoids absorb light?

Answer 28

Blue-Violet range

Question 29

Types of carotenoids?

Answer 29

1. Carotene 2. Xanthophyll

Question 30

Carotenes are __ pigments

Answer 30

Orange red

Question 31

Carotenes are composed of

Answer 31

isoprenoid units

Question 32

Xanthophyll are _ pigments

Answer 32

Yellow

Question 33

Widely distributed xanthophyll is?

Answer 33

Lutein

Question 34

Accessory pigments are?

Answer 34

Chlorophyll b + Carotenoids

Question 35

Photosystem are located in?

Answer 35

Thylakoid membrane

Question 36

Accessory pigments are located?

Answer 36

In antenna complex of photosystem

Question 37

Reaction centre contains

Answer 37

chlorophyll a

Question 38

Max absorption of PS1?

Answer 38

700nm

Question 39

Max absorption of PS2?

Answer 39

680nm

Question 40

Which photosystem was discovered first?

Answer 40

PS1 / P700

Question 41

PS1 is involved in

Answer 41

cyclic + non cyclic phosphorylation

Question 42

PS2 is involved in

Answer 42

Only non cyclic phosphorylation

Question 43

Carbon source for synthesis of organic compound in photosynthesis is provided by?

Answer 43

CO2

Question 44

Light rxn of photosynthesis occurs in?

Answer 44

Thylakoid

Question 45

Dark rxn of photosynthesis occurs in?

Answer 45

Stroma (daytime)

Question 46

What's the input of light reaction?

Answer 46

Light + water

Question 47

What's the input of dark reaction?

Answer 47

ATP, NADPH , CO2

Question 48

Output of light rxn?

Answer 48

ATP, NADPH , O2

Question 49

Output of dark rxn?

Answer 49

glyceraldehyde 3 phosphate

Question 50

most imp event in light rxn is production of

Answer 50

ATP

Question 51

The mechanism of production of ATP during light rxn?

Answer 51

Chemiosmosis

Question 52

the excited electrons liberated from PS1 are accepted by?

Answer 52

NADP+

Question 53

Chlorophyll a is strong _ agent

Answer 53

Oxidizing

Question 54

The holes of PSII are filled by?

Answer 54

electrons released by photolysis of H2O