Select Question Set:
Q. No.Which of the following scientists discovered oxygen?
1. Joseph Priestley
2. Jan Ingenhousez
3. Cornelius van Niel
4. T.W. Engelmann
Subtopic: Historical View: Experiments |
87%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
In the experiment conducted by T.W. Engelmann aerobic bacteria were used.
| 1. | To determine the action spectrum |
| 2. | To determine the absorption spectrum of chlorophyll. |
| 3. | To detect the sites of oxygen (O2) evolution. |
| 4. | To detect the oxidizing species in the photosynthetic reactants. |
Subtopic: Historical View: Experiments |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Which alignment of chloroplasts in mesophyll cell will allow to get optimum quantity of the incident light?
1. Away from the wall
2. Across the wall
3. Along the wall
4. Perpendicular to the wall
1. Away from the wall
2. Across the wall
3. Along the wall
4. Perpendicular to the wall
Subtopic: Chloroplast Structure |
68%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The fluid component of chloroplast associated with
1. Photochemical reactions
2. Light - dependent reactions
3. ATP - synthesizing reactions
4. Biosynthetic reactions
1. Photochemical reactions
2. Light - dependent reactions
3. ATP - synthesizing reactions
4. Biosynthetic reactions
Subtopic: Chloroplast Structure |
51%
Please attempt this question first.
Hints
Please attempt this question first.
Which of the following effects will be observed if the plant is exposed only to red light which was earlier given blue light?
| 1. | Increase in rate of photosynthesis |
| 2. | Decrease in rate of photosynthesis |
| 3. | Firstly, decrease in rate of photosynthesis then increase |
| 4. | No photosynthesis takes place |
Subtopic: Pigments |
61%
Please attempt this question first.
Hints
Which of the following is true about chlorophyll b?
| 1. | Serves as major primary pigment in the photosynthetic machinery |
| 2. | Forms the reaction center only |
| 3. | Prevent reaction center from photo-oxidation |
| 4. | Show blue color in chromatogram |
Subtopic: Pigments |
82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Which of the following biomolecules serve as the binding site of pigments in light harvesting (LHC)?
1. Nucleic acids
2. Proteins
3. Carbohydrates
4. Vitamins
1. Nucleic acids
2. Proteins
3. Carbohydrates
4. Vitamins
Subtopic: Pigments |
81%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Absorption peak of carotenoids in PS II falls in:
1. Red region
2. Green region
3. Yellow region
4. Blue region
1. Red region
2. Green region
3. Yellow region
4. Blue region
Subtopic: Pigments |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
In terms of redox potential, flow of electrons from LHC to electron acceptor is A and within electron transport systems is B. Select correct option to fill (A) & (B)
| (A) | (B) | |
| 1. | Uphill | Downhill |
| 2. | Downhill | Uphill |
| 3. | Downhill | Downhill |
| 4. | Uphill | Uphill |
Subtopic: Light Reaction: Electron Transport |
82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Electron transport system is composed of:
1. Reduced coenzymes
2. Redox enzymes
3. Cytochomes
4. Fatty acids
1. Reduced coenzymes
2. Redox enzymes
3. Cytochomes
4. Fatty acids
Subtopic: Light Reaction: Electron Transport |
68%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Select Question Set:
© 2024 GoodEd Technologies Pvt. Ltd.