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Ch-6: Tissues
10 Questions
Before You Practice Try each question on your own first. Use the Show Answer button only after you have selected your option, then read the explanation and revise the related concept from your chapter notes.
1. Which meristematic tissue is responsible for increasing the girth (girth/thickness) of the stem or root?
A. Apical meristem
B. Intercalary meristem
C. Lateral meristem
D. Apical bud
Show Answer
Answer: C. Lateral meristem
Explanation: Lateral meristem (cambium) causes secondary growth, leading to an increase in the girth/girth of the plant stem and root.
2. Which plant tissue provides mechanical flexibility and allows easy bending in leaves and stems without breaking?
A. Parenchyma
B. Collenchyma
C. Sclerenchyma
D. Xylem
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Answer: B. Collenchyma
Explanation: Collenchyma consists of living cells with localized wall thickenings that provide flexibility and mechanical support.
3. The husk of a coconut is made up of which type of tissue?
A. Parenchyma
B. Collenchyma
C. Sclerenchyma
D. Aerenchyma
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Answer: C. Sclerenchyma
Explanation: Sclerenchyma consists of dead cells with heavily lignified walls, making the coconut husk hard and stiff.
4. Which permanent complex tissue is responsible for transporting water and minerals vertically in plants?
A. Phloem
B. Xylem
C. Cambium
D. Epidermis
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Answer: B. Xylem
Explanation: Xylem conducts water and minerals unidirectional from roots to upper parts of the plant.
5. Which component of phloem tissue is dead at maturity?
A. Sieve tubes
B. Companion cells
C. Phloem parenchyma
D. Phloem fibres
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Answer: D. Phloem fibres
Explanation: Phloem fibres (bast fibres) are sclerenchymatous and are the only dead elements present in phloem.
6. Which connective tissue connects muscle to bone?
A. Ligament
B. Tendon
C. Cartilage
D. Areolar tissue
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Answer: B. Tendon
Explanation: Tendons join skeletal muscles to bones, while ligaments connect bone to bone.
7. Fats are stored in the human body in which of the following tissues?
A. Cuboidal epithelium
B. Adipose tissue
C. Areolar tissue
D. Cartilage
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Answer: B. Adipose tissue
Explanation: Adipose tissue is a specialized connective tissue that stores fat beneath the skin and around internal organs.
8. Which type of muscle tissue is involuntary and non-striated (smooth)?
A. Skeletal muscle
B. Smooth muscle
C. Cardiac muscle
D. Voluntary muscle
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Answer: B. Smooth muscle
Explanation: Smooth muscles (found in blood vessels, alimentary canal) are spindle-shaped, non-striated, and operate involuntarily.
9. The functional unit of nervous tissue is called a:
A. Nephron
B. Neuron
C. Axon
D. Cyton
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Answer: B. Neuron
Explanation: Neurons (nerve cells) are the basic structural and functional units of the nervous system responsible for transmitting impulses.
10. Brain and spinal cord are composed of which type of tissue?
A. Connective tissue
B. Epithelial tissue
C. Muscular tissue
D. Nervous tissue
Show Answer
Answer: D. Nervous tissue
Explanation: The nervous system, including the brain, spinal cord, and nerves, is made up entirely of nervous tissue.
