Metabolism

Q.

The respiratory quotient of protein-carbohydrate and fat substrates are in the order:

1. 0.7, 1, -1

2. 0.9, 1, less than 1

3. 0, -1, 1

4. 1, 0.9, less than 1

Q.

The calorific value of fat is:

1. less than that of carbohydrate and protein

2. less than protein but more than carbohydrate

3. less than carbohydrate but more than protein

4. more than that of carbohydrate and protein

Q. Metabolism is the sum total of catabolism and anabolism.

1. False
2. True

Q. The following is an example of:

Fats → Glycerol and fatty acid

1. Excretion
2. Anaerobic respiration
3. Catabolism
4. Anabolism

Q.

What are carbohydrates made of?

Q. The energy stored in food is released during _____.

1. circulation
2. digestion
3. respiration
4. excretion

Q. List out the different types of metabolism with an example.

[Review question: Pg. No: 216]

Q.

Though fats and oils have higher calorific values, carbohydrates are consumed in major proportions as the main sources of food. Justify.

Q. Catabolic processes show _____________ reaction.

1. exothermic
2. endothermic
3. none of these
4. oxidation-reduction

Q. Aquatic plants make use of dissolved carbondioxide for photosynthesis, i.e., to prepare their food. Give the required equation in the process :

Q. Catabolic processes-

1. break complex molecules into simpler ones
2. make complex molecules from simpler ones
3. occur only in autotrophs
4. occur only in heterotrophs

Q. Conversion of ATP to ADP is an anabolic process.

1. True
2. False

Q. Conversion of adipic acid to protein is an example of _________.

1. anabolic process
2. exothermic reaction
3. catabolic process
4. none of these

Q. Glucose molecule on decomposition gives carbon dioxide and water with excertion of energy. This reaction is an anabolic process.

1. True
2. False

Q. Calorific value is in the order:

1. Carbohydrates $>$ Fats $>$ Proteins
2. Fats $>$ Carbohydrates $>$ Proteins
3. Proteins $>$ Carbohydrates $>$ Fats
4. Fats $>$ Proteins $>$ Carbohydrates

Q. Choose the correct answers from the alternatives given .
Which of the following forms of energy is not correctly matched?

1. Kinetic energy fat molecules
2. Kinetic energy: movement of muscles
3. Chemical energy: glucose
4. Potential energy ATP

Q. List out the different types of metabolism with an example.

[Review question: Pg. No: 216]

Q. Which of the following fatty acid is not synthesized in the human body?

1. Glycerol
2. Cholesterol
3. Linoleic acid
4. Both A and B