TISSUE CLASS 9th

Which of the following meristems helps to increase girth of the stem?

• (a) Apical meristem

• (b) Lateral meristem

• (c) Intercalary meristem

• (d) Vertical meristem

Answer explanation

Ans : (b) Lateral meristem Lateral meristem consists of initials which divide mainly in one plane and cause the organ to increase in diameter and girth. The lateral meristem usually occurs on the sides both in stem and root.

Xylem conducts .......... and minerals from the root to the apical aparts of the plant.

(TYPE IN CAPITAL LETTERS)

Find the living cells that provides mechanical strength to the plant

• (a) Parenchyma

• (b) Collenchyma

• (c) Sclerenchyma

• (d) Chollrenchyma

Answer explanation

Collenchyma is the living cell that gives mechanical strength to the plant.

Cell walls of sclerenchyma are rich in

• (a) cellulose

• (b) pectin

• (c) lignin

• (d) hemicellulose

Epithelium is a covering tissue, lining the cavities in the body viscera True/False

(WRITE IN CAPITAL LETTER)

Assertion : Parenchyma cells help in storage of food. Reason : Parenchyma cells are the main seats of photosynthesis.

• (a) Both assertion and reason are true and reason is the correct explanation of assertion

• (b) Both assertion and reason are true but reason is not the correct explanation of assertion

• (c) Assertion is true but reason is false.

• (d) Both Assertion and Reason is false

Assertion : Parenchyma cells help in storage of food. Reason : Parenchyma cells are the main seats of photosynthesis.

• (a) Both assertion and reason are true and reason is the correct explanation of assertion

• (b) Both assertion and reason are true but reason is not the correct explanation of assertion

• (c) Assertion is true but reason is false.

• (d) Both Assertion and Reason is false

Assertion : Ciliated epithelium helps in movement of particles. Reason : Cilia help in movement

• (a) Both assertion and reason are true and reason is the correct explanation of assertion.

• (b) Both assertion and reason are true and reason is not the correct explanation of assertion.

• (c) assertion is True and reason is false

• (d) Both Assertion and Reason is False

• (a)

• (b)

• (c)

• (d)

Identify the features of striated muscles.

• (a) Cylindrical, striped, skeletal and voluntary

• (b) Spindle, unbranched and uninucleated

• (c) Cylindrical, unstriped and without nucleus

• (d) Cylindrical, striped and branched