Question

Ch-6 Tissues
Q.1 Answer the following questions:
1. Which plant tissue provides both mechanical strength as well as flexibility?
2. What chemical substance is deposited in the secondary wall of sclerenchyma?
3. What is skeletal connective tissue? Give its functions.
4. What is synapse? Explain.
5. Name the protein found in white collagen fibre and yellow fibre.
6. State the function of microvilli.
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7. What is medullary sheath? Mention its significance.
8. What will happen if all blood platelets are removed from blood?
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9. Write down location, structure and function of parenchyma.
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10. What is epithelial tissue? Give its characteristics and functions.
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11. Define connective tissue. Write their functions.
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12. Differentiate between striated, unstriated and cardiac muscles on the basis of their struct
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Answer 1

Answer:

1) collenchyma tissues

2) lignin

3) It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals.

4) Neurons communicate with one another at junctions called synapses. At a synapse, one neuron sends a message to a target neuron—another cell. Most synapses are chemical; these synapses communicate using chemical messengers. Other synapses are electrical; in these synapses, ions flow directly between cells.