In a chloroplast the highest number of protons are found in

1.lumen of thylakoids2.inter membrane space
3.antenna complex4.stroma

Subtopic:  Chemiosmotic hypothesis |
 84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

The oxygen evolved during photosynthesis comes from water molecules. Which one of the following pairs of elements are involved in this reaction?
1. Manganese and chlorine
2. Manganese and potassium
3. Manganese and molybdenum
4. Manganese and calcium

Subtopic:  Light Reactions |
 74%

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

In photosynthesis, the light-independent reactions take place at

1. thylakoid lumen 2. photosystem l
3. photosystem ll 4. stromal matrix
Subtopic:  Dark Reaction: Biosynthetic Phase |
 70%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


advertisementadvertisement

The structures that are formed by stacking of organised flattened membranous sacs in the chloroplasts are

1.cristae2.grana
3.stroma lamellae4.stroma
Subtopic:  Chloroplast Structure |
 87%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


Anoxygenic photosynthesis is characteristic of
1. Rhodospirillum
2. Spirogyra
3. Chlamydomonas
4. Ulva

Subtopic:  Introduction |
 76%

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

The correct sequence of cell organelles during photorespiration is
1. chloroplast-golgi bodies-mitochondria
2. chloroplast-rough endoplasmic reticulum-dictyosomes
3. chloroplast-peroxisome-mitochondria
4. chloroplast-vacuole-peroxisome

Subtopic:  Photorespiration |
 83%

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

advertisementadvertisement

PGA, as the first CO2 fixation product, was discovered in photosynthesis of
1. bryophyte
2. gymnosperm
3. angiosperm
4. alga

Subtopic:  Dark Reaction : Calvin Cycle |
 70%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


C4 -plants are photosynthetically more efficient than C3 -plants because
1. CO2 compensation point is more.
2. CO2 generated during photorespiration is trapped and recycled through PEP carboxylase.
3. CO2 efflux is not prevented.
4. they have more chloroplasts.

Subtopic:  C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples | Question on C4 Pathway |

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

In the leaves of C4 -plants, malic acid synthesis during CO2 fixation occurs in
1. epidermal cells
2. mesophyll cells
3. bundle sheath
4. guard cells

Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
 78%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


advertisementadvertisement

Carbohydrates are commonly found as starch in plant storage organs. Which of the following five properties of starch (A-E) make it useful as a storage material?
A. Easily translocated
B. Chemically non-reactive
C. Easily digested by animals
D. Osmotically inactive
E. Synthesized during photosynthesis
The useful properties are
1. (B) and (C)
2. (B) and (D)
3. (A), (C) and (E)
4. (A) and (E)

Subtopic:  Dark Reaction: Biosynthetic Phase |
 63%

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints