Metabolism

Q.

Define metabolism.

Q.

Difference between catabolic pathway and anabolic pathway?

Q. From his experiments, S. L. Miller produced:

1. Amino acids by mixing CH${}_3$, H${}_2$, NH${}_4$ and water vapour at 800°C
2. Sugars by mixing CH${}_4$, NH${}_3$, H${}_2$ and water vapour at 600°C
3. Nitrogen bases by mixing CH${}_3$, N${}_2$, NH${}_3$ and water vapour at 600°C
4. Amino acids by mixing CH${}_4$, H${}_2$, NH${}_3$ and water vapour at 800°C

Q. Choose the correct statement with respect to metabolic pathways.

1. They are not isolated reactions
2. They could be linear
3. They could be cyclic
4. All of these

Q. Growth that is accompanied by metabolic processes which spend energy involves

1. Anabolism

2. None of these

3. Both a and b

4. Catabolism

Q. Choose the correct combination between respiratory substrates and their respective RQs.

	Carbohydrate	Fat	Protein
(a)	2	1	1
(b)	0	1	1
(c)	1	0.7	0.9
(d)	0.5	0.5	0.5

1. b
2. a
3. d
4. c

Q. Which of the following is an endergonic reaction?

1. None of the above
2. 
3. 
4. 

Q. Glycolysis is a

1. Metabolic process
2. Anabolic process
3. Catabolic process
4. None of the above

Q. During glycolysis, the conversion of one mole of $3PGA$ to $C_3{H}_4{O}_3$ yield 2 moles of ATP. But the oxidation of glucose to $C_3{H}_4{O}_3$ produces a total of 4 moles of ATP. Where do the remaining 2 moles of ATP come from?

1. One mole of glucose gives 2 moles of $3PGA$
2. Glycolysis produces $2NADH$
3. Fermentation of $C_3{H}_4{O}_3$ produces $2ATP$ more
4. $2ATP$ are used in the conversion of glucose to $3PGA$

Q. Sum total of all the reactions taking place in a cell is called reactions.

1. anabolic
2. catabolic
3. amphibolic
4. metabolic

Q.

Can we relate metabolism with growth of the body?

Q. Define RQ. What is its value for fats?

Q. What is the significance of step-wise release of energy in respiration?

Q.

Is glycolysis an anabolic reaction?

Q.

Give an example of metabolic transformation.

Q. Differentiate between exergonic and endergonic reactions.

Q. Homeostasis is

1. the phenomenon by which the same group of metabolites that can make the reaction static
2. the state of steady internal chemical and physical conditions maintained by living systems
3. a process by which metabolic pathways are stopped
4. a process that explains the structure and mechanism of enzyme action

Q. 1. what is the meaning of endergonic? 2. what is the meaning of exergonic?

Q. A metabolic pathway means a

1. Route taken by chemicals through solution
2. Sequence of enzyme-facilitated chemical reactions
3. Route taken by a particular enzyme from one chemical reaction to another
4. Diagram of how organic molecules evolve

Q. Sum total of all the reactions taking place in a cell is called reactions.

1. anabolic
2. catabolic
3. amphibolic
4. metabolic

Q. The ester of fatty acids with carbohydrates are:

1. waxes
2. glycolipids
3. phospholipids
4. derived lipids

Q. Sum total of all the reactions taking place in a cell is called reactions.

1. anabolic
2. catabolic
3. amphibolic
4. metabolic

Q. Respiration is a catabolic reaction.

1. False
2. True

Q. Each step of a metabolic pathway has a

1. Cofactor
2. Enzyme
3. Coenzyme
4. One to several enzymes

Q. Which of the following reactions is endergonic?

1. $ATP\to ADP+P_i$
2. $NADH\to NA{D}^{+}+H^{+}$
3. None of the above
4. $(C{H}_{2}O{)}_n+O_2\to C{O}_2+H_{2}O$

Q.

$\text{NADH}$ is produced in

Q. Respiration is a catabolic reaction.

1. False
2. True

Q. Enzyme present in limited quantity in Asians for metabolism of alcohol is

1. Alcohol dehydrogenase
2. Acetaldehyde dehydrogenase
3. Succinate thiokinase
4. Both A and B

Q.

Catabolic processes ___ .

1. make complex molecules from simpler ones

2. break complex molecules into simpler ones

3. occur only in autotrophs

4. occur only in heterotrophs

Q. Explain aerobic respiration