AIIMS Biology Biomolecules Class 11 Questions

Select the option having all correctly matched pairs.

In a 50 gm living tissue, what would be the amount of water?

Which of the following elements is present in very less quantity in the body?

Assertion : Enzymes lower down the activation energy of the reactant molecule to make its transition into product easier. Reason : Enzymes are highly substrate specific catalysts.

Vitamin B₆ is also called

Which match is true?<br><br><table><tr><th></th><th>Vitamin deficiency disease</th><th>Vitamin</th><th>Source</th></tr><tr><td>(a)</td><td>Severe bleeding</td><td>Tocopherol</td><td>Milk, egg</td></tr><tr><td>(b)</td><td>Anaemia</td><td>Ascorbic acid</td><td>Lemon, orange</td></tr><tr><td>(c)</td><td>Night blindness</td><td>Retinol</td><td>Carrot, milk</td></tr><tr><td>(d)</td><td>Sterility</td><td>Calciferol</td><td>Milk, butter</td></tr></table>

An example of competitive inhibition of an enzyme is the inhibition of

Which of the following contain β-1, 4 linkage?

Which statement is true?

In which one of the following sets of three items each belong to the category mentioned against them?

The figure given below shows three velocity-substrate concentration curves for an enzyme reaction. What do the curves a, b, and c depict respectively?

The given graph shows the effect of substrate concentration on the rate of reaction of the enzyme green-gram-phosphatase. What does the graph indicate?

Which one of the following is a matching pair of a certain body feature and its value/count in a normal human adult?

Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to:

An example of competitive inhibition of an enzyme is the inhibition of:

Assertion : Bats and whales are classified as mammals. Reason : Bats and whales have four-chambered heart.

Which of the following would not give Fehling's test?

Assertion : Living organisms are regarded as closed systems. Reason : Energy of living organisms cannot be lost or gained from the environment.

In RNA thiamine is replaced by:-