Advertisements
Advertisements
प्रश्न
Answer the following question:
Why do Green plants start evolving CO2 instead of O2, at high temperatures?
Advertisements
उत्तर
It is due to photorespiration. The green cells in the presence of light, take-up oxygen and produce CO2, without yielding any useable energy.
APPEARS IN
संबंधित प्रश्न
Answer the following question.
Mention four significant services that a healthy forest ecosystem provides.
Which of the following enzymes helps in fixing CO2 into malic acid in sorghum plant?
Seed dispersal in squirting cucumber occurs via ______.
Which of the following condition favours the dissociation of oxyhaemoglobin into oxygen and deoxyhaemoglobin?
Out of the total proposed cost of various ecosystem services, the cost of climate regulations and habitat for wildlife is ______.
Ecosystem is not accepted by which law of thermodynamics?
Primary production is expressed in terms of ______.
The unique feature of hot dilute soup is that there was no free ______ in it.
Based on the table given below, identify the type of natural selection taking place.
| Size of the seeds | % of germination |
| Small | 75% |
| Medium | 15% |
| Large | 75% |
Given below are the features of Seed A and Seed B. Study them carefully and answer the question that follows.
| SEED A | Papery endosperm, swollen cotyledon, perisperm develops from nucellus, suspensor, haustoria substitute endosperm. |
| SEED B | Swollen endosperm, papery cotyledons or absent, perisperm does not develop from nucellus, suspensor and haustoria do not substitute endosperm. |
Identify the type of Seed A and Seed B. Cite one example of each of Seed A and Seed B.
