Q. No.In Kranz anatomy, the bundle sheath cells have:
1.
thick walls, many intercellular spaces and few chloroplasts
2.
thin walls, many intercellular spaces and no chloroplasts
3.
thick walls, no intercellular spaces and a large number of chloroplasts
4.
thin walls, no intercellular spaces and several chloroplasts
Read the following four statements A, B, C and D and select the right option having both correct statements:
STATEMENTS:
| (A) | Z-scheme of light reaction takes place in the presence of PSI only |
| (B) | Only PSI functional in cyclic photophosphorylation |
| (C) | Cyclic photophosphorylation results in a synthesis of ATP and NADPH2 |
| (D) | Stroma lamellae lack PSII as well as NADP |
Options:
1. A and B
2. B and C
3. C and D
4. B and D
Study the pathway given below:
In which of the following options, correct words for all the three blanks A, B and C are indicated?
| A | B | C | |
| 1. | Fixation | Transamination | Regeneration |
| 2. | Fixation | Decarboxylation | Regeneration |
| 3. | Carboxylation | Decarboxylation | Reduction |
| 4. | Decarboxylation | Reduction | Regeneration |
Kranz anatomy is one of the characteristics of the leaves of:
1. Wheat
2. Sugarcane
3. Mustard
4. Potato
1. are rich in PEP carboxylase
2. lack RuBisCo
3. lack both RuBisCo and PEP carboxylase
4. are rich in RuBisCo
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 photosystem-I, the first electron acceptor is:
1. ferredoxin
2. cytochrome
3. plastocyanin
4. an iron-sulphur protein
| 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) |
The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is:
| 1. | cytochrome | 2. | iron-sulphur protein |
| 3. | ferredoxin | 4. | quinone |
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
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