- 1(current)
Q. No.Of the total incident solar radiation, proportion of PAR is:
1. about 60%
2. about 50%
3. more than 80%
4. about 70%
2. about 50%
3. more than 80%
4. about 70%
Subtopic: Energy Flow |
90%
Level 1: 80%+
AIPMT - 2011
Hints
Approximately how much of the solar energy that falls on the leaves of the plant is converted to chemical energy by photosynthesis?
1. Less than 1%
2. 2-10%
3. 30%
4. 50%
Subtopic: Energy Flow |
73%
Level 2: 60%+
Hints
If the carbon atoms fixed by producers already have passed through three species, the trophic level of the last species would be
1. scavenger
2. tertiary producer
3. tertiary consumer
4. secondary consumer
Subtopic: Energy Flow |
75%
Level 2: 60%+
Hints
Percentage of energy transferred to the higher tropic level in a food chain is:
| 1. | 1% | 2. | 10% |
| 3. | 90% | 4. | 100% |
Subtopic: Energy Flow |
93%
Level 1: 80%+
AIPMT - 1999
Hints
Mass of living matter at a tropic level in an area at any time is called:
| 1. | Detritus | 2. | Humus |
| 3. | Standing state | 4. | Standing crop |
Subtopic: Energy Flow | Ecological Pyramids |
87%
Level 1: 80%+
AIPMT - 2011
Hints
In an ecosystem, if the Net Primary Productivity (NPP) of first trophic level is \(100 x\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1},\) what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
| 1. | \(x\left(\mathrm{kcal}~ \mathrm{m}^{-2}\right) y r^{-1}\) |
| 2. | \(10 x\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1}\) |
| 3. | \(\dfrac{100 x}{3 x}\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1}\) |
| 4. | \(\dfrac{x}{10}\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) y r^{-1}\) |
Subtopic: Ecosystem Productivity | Energy Flow |
51%
Level 3: 35%-60%
NEET - 2024
Hints
- 1(current)
Q. No.
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