NEET Biology: Morphology and modifications Practice Questions
10 free multiple-choice questions on Morphology and modifications (Structural Organisation in Animals and Plants) for NEET Biology, each with the correct answer and a step-by-step explanation. Attempt a question, then reveal the solution to check your reasoning.
Practice thousands more NEET questions in the app →Q1. The arrangement of leaves on a stem is called phyllotaxy. What is the arrangement found in a rosette pattern?
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Correct answer: B — Whorled
The whorled arrangement is characterized by leaves being arranged in circles or whorls around the stem.
Q2. In flowering plants, the modification of a stem into a storage organ for food is an example of which type of morphological change?
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Correct answer: B — Vegetative modification
The modification of a stem into a structure for storage (like a tuber or rhizome) falls under vegetative modification, where the stem tissue is modified for a new function.
Q3. The primary function of the modified leaves, such as thorns or spines, in plants is:
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Correct answer: D — Mechanical defense
Thorns and spines are modified stems or leaves that serve the crucial function of protecting the plant from herbivores (mechanical defense).
Q4. The arrangement of leaves on the stem is called:
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Correct answer: B — Phyllotaxy
Phyllotaxy refers to the arrangement pattern of leaves on the stem or branch.
Q5. Which layer of the plant body is responsible for the protection of the plant and controls the entry of water and gases?
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Correct answer: B — Epidermis
The epidermis is the outermost layer of the plant body, serving as the primary protective layer and regulating exchange with the external environment.
Q6. Which feature is characteristic of parenchyma tissue found in plant organs?
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Correct answer: B — Living cells with thin walls
Parenchyma tissue consists of living cells with thin walls, primarily involved in storage and metabolic functions within the plant.
Q7. In which plant modification is the stem thickened to provide mechanical support?
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Correct answer: C — Thorns
Thickening of the stem to provide support (e.g., in climbing plants or thorny plants) is a form of mechanical modification.
Q8. Which of the following structures in an animal body is a primary example of morphological modification related to locomotion?
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Correct answer: A — Modification of limbs
Modification of limbs (e.g., developing wings or flippers) is a clear example of morphological change related to locomotion in animals.
Q9. What is the primary function of the epidermis in plants?
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Correct answer: D — Protection
The epidermis serves as the outermost protective layer of the plant body against mechanical injury, water loss, and pathogens.
Q10. In animals, which type of tissue is primarily responsible for providing structural support and strength to the body?
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Correct answer: C — Connective tissue
Connective tissue, composed of cells like bone, cartilage, and blood, provides the framework and structural support to the entire animal body.
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