Question

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Answer 1

Question:

1. What are the two basic types of plant tissues ?

2. Give the technical terms of the following :

(i) The category of plant tissues that have lost their ability to multiply

(ii) The kind of plant cells with thin walls and usually a single large vacuole

(iii) Elongated cells which are thickened at the corners

(iv) The two types of tissues which provide the upward movement of water and dissolved materials from the roots to other parts of the plant.

3. Mention if the following statements are true (T) and false (F)

(i)Phloem cells carry manufactured food from leaves to other parts.

(ii) Veins of leaves have both xylem and phloem

(iii) The older xylem tissue does not participate in transport.

(iv) The sclerenchyma consists of actively dividing cells.

Answer:

1. Meristematic tissue and permanent tissue

Meristematic tissue consists of cells which are capable of cell division.

These cells undergoes differentiation to form permanent tissue.

____________________________

2. (i) Permanent tissue

Not capable of cell division.

(ii) Parenchyma

(iii) Collenchyma

(iv) Xylem and Phloem

Xylem transport water and minerals from roots to the other parts of the plant. Phloem transport food from leaves to other parts of the plants.

__________________________

3. (i) True (T)

(ii) True (T)

(iii) True (T)

(iv) False (F). This is because sclerenchyma consists of dead cells.

Answer 2

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