Advertisements
Advertisements
Question
What is dark reaction in photosynthesis?
Advertisements
Solution
It is the second phase of photosynthesis in which CO2 is fixed or reduced to glucose. It takes place in stroma of chloroplast. The reactions take place independent of light hence it is known as dark reaction.
It is also known as ‘Blackman’s reaction’, ‘Calvin cycle’ or C3 pathway.
APPEARS IN
RELATED QUESTIONS
Describe C3 Pathway.
Answer the following question.
Explain the role of transpiration.
Explain the root pressure theory.
What is transpiration?
Answer the following question.
What is the significance of transpiration?
Which of the following term correctly describes the membrane which allows passage of certain substances more readily than others?
Match the columns:
| Column A (Scientist) | Column B (Theory) | ||
| (1) | Dixon and Joylly | (a) | Starch-sugar inter-conversion theory |
| (2) | Steward | (b) | Osmotic absorption theory |
| (3) | Atkins and Pristley | (c) | Non-osmotic absorption theory |
| (4) | Kramer and Thimann | (d) | Cohesion tension theory |
In plants, active absorption usually does NOT occur when ______.
Аccessory cells of stomata are reservoirs of ______.
Statement I - During night, guard cells become flaccid.
Statement II - During day time, guard cells become turgid due to endosmosis.
In light of above statements, choose the most appropriate answer from the option given below.
