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

Discuss the main steps in the digestion of proteins as the food passes through different parts of the alimentary canal.

Explain the term thecodont and diphyodont.

What is the site of gaseous exchange in an insect?

What is the importance of plasma proteins?

Why do we consider blood as a connective tissue?

What is the difference between lymph and blood?

Define the Glomerular Filtration Rate (GFR).

Explain the autoregulatory mechanism of GFR.

What is meant by the term osmoregulation?

Reabsorption of water from distal parts of the tubules is facilitated by hormone ______.

Dialysis fluid contains all the constituents as in plasma except ______.

What are the different types of movements exhibited by the cells of human body?

A plant tissue, when stained, showed the presence of hemicellulose and pectin in cell wall of its cells. The tissue represents ______.

Respiration in insects is called direct because ______. 

Permanent tissues develop from :

Filtration of the blood takes place at ______. 

In a given habitat we have 20 plant species and 20 animal species. Should we call this as ‘diversity’ or ‘biodiversity’? Justify your answer.

The male and female reproductive organs of several pteridophytes and gymnosperms are comparable to floral structures of angiosperms. Make an attempt to compare the various reproductive parts of pteridophytes and gymnosperms with reproductive structures of angiosperms.

Rearrange the following zones as seen in the root in vertical section and choose the correct option.

1. Root hair zone
2. Zone of meristems
3. Rootcap zone
4. Zone of maturation
5. Zone of elongation

Roots developed from parts of the plant other than radicle are called ______.