Question

biolegy lesson tissues for class 9 extra questions ​

Answer 1

Answer:

Question 1.

Name a plant tissue having dead cells.

Answer:

Sclerenchyma

Question 2.

What minerals is the bone matrix rich in?

Answer:

Calcium and potassium

Question 3.

Name the water conducting tissue generally present in gymnosperms.

Answer:

Tracheids

Question 4.

Presence of which chemical in cork cells makes them impervious to water and gases?

Answer:

Suberin

Question 5.

Which tissue in plants provides them flexibility?

Answer:

Collenchyma

Question 6.

Name the muscular tissue that functions throughout life without fatigue.

Answer:

Cardiac muscular tissue