The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is:
1. | cytochrome | 2. | iron-sulphur protein |
3. | ferredoxin | 4. | quinone |
1. | high energy bonds are formed in mitochondrial proteins |
2. | ADP is pumped out of the matrix into the inter-membrane space |
3. | a proton gradient forms across the inner membrane |
4. | there is a change in the permeability of the inner mitochondrial membrane toward Adenosine Diphosphate (ADP) |
In photosystem-I, the first electron acceptor is:
1. ferredoxin
2. cytochrome
3. plastocyanin
4. an iron-sulphur protein
During photorespiration, the oxygen consuming reaction(s) occur in:
1. stroma of chloroplasts and mitochondria
2. stroma of chloroplasts and peroxisomes
3. grana of chloroplasts and peroxisomes
4. stroma of chloroplasts
In the leaves of C4 plants, malic acid formation during CO2 fixation occurs in the cells of:
1. mesophyll
2. bundle sheath
3. phloem
4. epidermis
1. cytochrome-b
2. cytochrome-f
3. quinone
4. ferredoxin
1. | the CO2 compensation point is more |
2. | CO2 generated during photorespiration is trapped and recycled through PEP carboxylase |
3. | The CO2 efflux is not prevented |
4. | They have more chloroplasts |
Cyclic -photophosphorylation results in the formation of:
1. NADPH
2. ATP and NADPH
3. ATP, NADPH, and O2
4. ATP
Stroma in the chloroplasts of higher plants contains:
1. light-independent reaction enzymes
2. light-dependent reaction enzymes
3. ribosomes
4. chlorophyll