Question

Question 1.
Define pyrenoid.
Answer:
Pyrenoid is a starch storing organelle present in green algae.

Question 2.
Define ramenta.
Answer:
The hair-like structure present on the younger stem, petiole, and rachis of mature leaves is known as ramenta.
Question 3.
What is the function of mucilage in aquatic plants?
Answer:
Mucilage protects the algae from epiphytic growth and the decaying effect of water.

Question 4.
How much water can Sphagnum absorb?
Answer:
Sphagnum can absorb water up to 18 times its weight.

Question 5.
What is the function of air vesicles in brown algae?
Answer:
The air vesicles in brown algae maintain buoyancy.
Question 6.
Why is Adiantum called a ‘walking fern’?
Answer:
Adiantum is known as ‘walking fern’ because the leaf tips come in contact with the soil, They strike adventitious roots and develop into a new plant.

Question 7.
Give one example of the monocarpic plant.
Answer:
Bamboo.

Question 8.
What are sori?
Answer:
They are groups of separation found in Dryopteris fern.
Question 9.
What are rhizoids?
Answer:
They are slender unicellular or multicellular hair-like structures that penetrate in the moist soil and absorb the water for the plants.

Question 10.
Which pigments are found in green algae?
Answer:
Chlorophyll ‘a’ and ‘b’ and ‘Beta’ carotene.
Plant Kingdom Class 11 Important Extra Questions Biology Chapter 3
Here we are providing Class 11 Biology Important Extra Questions and Answers Chapter 3 Plant Kingdom. Important Questions for Class 11 Biology are the best resource for students which helps in Class 11 board exams.​

Answer 1

Answer:

you have gave the answer already