Plant Kingdom — BIOLOGY STD 11 Science — Question

Give the structural and functional differences between parenchyma and collenchyma.

What are the characteristic differences found in vascular tissue of gymnosperms and angiosperms?

There is no special respiratory organ in plants, yet plants efficiently manage exchange of gases. Justify.

Attempt titrating an amino acid against a weak base and discover the number of dissociating ( ionizable ) functional groups in the amino acid.

What is the source of vasopressin hormone? Where is it stored? Name the target organ of this hormone? State its function.

List out the scope of systematics. Whose publication is Systema Naturae?

Which of the following pairs of animals has non glandular skin.

1. Snake and Frog.
2. Chameleon and Turtle.
3. Frog and Pigeon.
4. Crocodile and Tiger.

Distinguish between:
Inspiratory capacity and Expiratory capacity.

What is meant by ‘antagonistic effect? Illustrate your answer with an example.

What is meant by the statement “aerobic respiration is more efficient.”?