Science (English Medium) Class 11 - CBSE Question Bank Solutions for Biology

Explain briefly the following term with a suitable example:

Sporophyll

Differentiate between the following:

Liverworts and Moss

What is a mesosome in a prokaryotic cell? Mention the functions that it performs.

What is meant by tertiary structure of proteins?

Proteins have primary structure. If you are given a method to know which amino acid is at either of the two termini (ends) of a protein, can you connect this information to purity or homogeneity of a protein?

Explain toxic elements with examples

What are the main steps in aerobic respiration? Where does it take place?

Define the term development.

What are the major transport mechanisms for CO₂? Explain.

What will be the pO₂ and pCO₂ in the atmospheric air compared to those in the alveolar air?

Write the differences between:

Systole and Diastole

Define a cardiac cycle.

Define a cardiac output.

Explain the heart sounds.

Describe the role of the skin in excretion.

Name the type of joint between the following:

Between pubic bones in the pelvic girdle

Which one of the following options is INCORRECT? 

A plant shows thallus level of organization. It shows rhizoids and is haploid. It needs water to complete its life cycle because the male gametes are motile. Identify the group to which it belongs to ______.

Protonema is ______.

The plant body in higher plants is well differentiated and well developed. Roots are the organs used for the purpose of absorption. What is the equivalent of roots in the less developed lower plants?