Science (English Medium) इयत्ता ११ - CBSE Question Bank Solutions for Biology

Name the type of joint between the following:

Atlas/axis

Name the type of joint between the following:

Carpal/metacarpal of thumb

Name the type of joint between the following:

Between phalanges

Name the type of joint between the following:

Femur/acetabulum

Name the type of joint between the following:

Between cranial bones

List the hormones secreted by the following:

Parathyroid

Write a short note on the function of the following hormone:

Parathyroid hormone (PTH)

Briefly comment on the significance of heterospory.

Differentiate between the following:

Homosporous and heterosporous pteridophytes

Illustrate a glycosidic, peptide and a phospho-diester bond.

Explain ETS.

What is oxidative phosphorylation?

List five main groups of natural plant growth regulators. Write a note on discovery, physiological functions and agricultural/horticultural applications of any one of them.

Why is abscisic acid also known as a stress hormone?

Which one of the plant growth regulators would you use if you are asked to:

Induce immediate stomatal closure in leaves.

Would a defoliated plant respond to photoperiodic cycle? Why?

Explain the process of inspiration under normal conditions.

How is respiration regulated?

What happens to the respiratory process in a man going up a hill?

Write the differences between:

P-wave and T-wave