How does abscisic acid regulate stomatal movement?
Important Questions on Homeostasis
Photosynthesis in green plants is directly and indirectly dependent on so many plant structures. Explain briefly the role of the following structures in this process.
Stomata:
Study the diagrams and answer the following:
What is the visible noticeable difference between the diagrams 'A' and 'B'?
Guard cells.
Given below is a set of five terms. Rewrite the terms in a logical sequence as directed at the end of each statement.
Stoma, Mesophyll cell, Xylem, Substomatal space, lntercellular space (loss of water due to transpiration).
Study the diagrams and answer the following :
.
Name the force responsible for change in shape.
The diagram below represents a structure found in a leaf. Study the same and answer the question that follow:
.
What is the function of the parts labelled A?
The diagram below represents a structure found in a leaf. Study the same and answer the question that follow:
.
Mention two structural features of A, which help in opening and closing of stomata.
Stoma, guard cell, chloroplast, epidermal cells, and cell wall.
Guard cells.
Consider the following events involved in stomatal opening
1. Turgor pressure of guard cells increases
2. ions move into guard cells
3. Formation of malic acid
4. Water moves into guard cells
What is the correct sequence of these events leading to the opening of stomata?
Study the diagrams and answer the following :
.
Label parts a, b, c and d.
The following figure shows the stomatal apparatus. Identify the parts labeled as A, B, C and D. Choose the correct answer from the following
The diagram below represents a structure found in a leaf. Study the same and answer the question that follow:
.
Where is this structure likely to be found in a leaf?
