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

Electron Transport System (ETS) is located in mitochondrial ______.

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

The energy yield in terms of ATP is higher in aerobic respiration than during anaerobic respiration. Explain.

Enumerate the assumptions that we undertake in making the respiratory balance sheet. Are these assumptions valid for a living system? Compare fermentation and aerobic respiration in this context.

Name the vascular connection that exists between the digestive tract and liver.

Explain the advantage of the complete partition of ventricle among birds and mammals and hence leading to double circulation.

What is the significance of hepatic portal system in the circulatory system?

Describe the events in cardiac cycle. Explain “double circulation”.

Which of the following is removed from our body by lungs?

Name atleast two hormones which result in fluctuation of Ca⁺⁺ level.

Mark the vitamin present in Rhodopsin ______.

Human eyeball consists of three layers and it encloses ______.

Label the following parts in the given diagram using arrow.

1. Aqueous chamber
2. Cornea
3. Lens
4. Retina
5. Vitreous chamber
6. Blind spot

Describe briefly the four major groups of Protozoa.

What are the characteristic features of Euglenoids?

Differentiate between the following

syngamy and triple fusion

How would you distinguish monocots from dicots?

Explain the structure of stomata with a labelled diagram.

Answer in one word or one line

What is the position of ovaries in cockroach?

Draw a labelled diagram of alimentary canal of a cockroach