AIIMS Zoology Biomolecules Class 11 Questions
25 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.
Assertion : Glycerides are important nutrients for body. Reason : Glycerides are hydrolysed into glycerol and fatty acids which are further absorbed in intestine by the formation of chylomicron.
Vitamin B₆ is also called
Cotton fibres mainly contains
Which of the following sugars is not found in plants?
Enzymes, vitamins and hormones can be classified into a single category of biological chemicals because of all of these
Assertion: Competitive inhibitor is also called as substrate analogue. Reason: It resembles the enzymes in structure.
| Vitamin deficiency disease | Vitamin | Source | |
|---|---|---|---|
| (a) | Severe bleeding | Tocopherol | Milk, egg |
| (b) | Anaemia | Ascorbic acid | Lemon, orange |
| (c) | Night blindness | Retinol | Carrot, milk |
| (d) | Sterility | Calciferol | Milk, butter |
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:-
Assertion : Wounds heal slowly due to vitamin C deficiency.
Reason : Vitamin C is essential for collagen formation.