Which of the following statements is not true for stomatal apparatus?

1. Inner walls of guard cells are thick
2. Guard cells invariably possess chloroplasts and mitochondria
3. Guard cells are always surrounded by subsidiary cells
4. Stomata are involved in gaseous exhange
Subtopic:  Epidermal Tissue System |
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What would be the best description of stomata?
1. two guard cells plus the subsidiary cells only.
2. an opening surrounded by two guard cells.
3. an opening surrounded by two guard cells and the subsidiary cells.
4. two guard cells only.
Subtopic:  Epidermal Tissue System |
From NCERT
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Consider the following statements regarding the epidermal tissue system:
Statements A: The epidermis is a single-layered structure made up of compactly arranged cells with a large nucleus and no vacuole.
Statements B: The cuticle is a waxy layer present on the outer surface of the epidermis that helps in reducing water loss.
Statements C: Stomata are structures present in the epidermis of leaves that regulate transpiration and gaseous exchange.
Statements D: The guard cells of all plants are bean-shaped and regulate the opening and closing of stomata.
How many of the above statements are correct?
1. Only one statement
2. Only two statements
3. Only three statements
4. All four statements
Subtopic:  Epidermal Tissue System |
From NCERT
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Which of the following statement is not true for stomatal apparatus?
1. Guard cells invariably possess chloroplasts and mitochondria
2. Guard cells are always surrounded by subsidiary cells
3. Stomata are involved in gaseous exchange
4. Inner walls of guard cells are thick
Subtopic:  Epidermal Tissue System |
From NCERT
NEET - 2013
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital