Aerobic and Anaerobic Respiration

Q.

What is respiration?

Q.

Adult human RBCs are enucleated. Which of the following statement(s) is/are the most appropriate explanation for the feature?

(a) They do not need to reproduce

(b) They are somatic cells

(c) They do not metabolize

(d) All their internal space is available for oxygen transport

1. Only (d)

2. Only (a)

3. (a), (c) and (d)

4. (b) and (c )

Q.

What is an example of anaerobic bacteria?

Q.

Wite an example for facultative aerobes?

Q. What are the products of aerobic respiration?

1. $C{O}_2,H_{2}O,\text{energy}$
2. $C{O}_2,\text{ethanol},\text{energy}$
3. $\text{Lactic acid},\text{energy}$
4. None of these

Q.

Do bacteria require oxygen to grow?

Q.

What is meant by the statement 'aerobic respiration is more efficient'?

Q.

Aerobic respiration requires the presence of ________ .

Q.

What bacteria do not need oxygen?

Q.

Distinguish between the following:

Aerobic respiration and Anaerobic respiration

Glycolysis and Fermentation

Glycolysis and Citric acid Cycle

Q.

Aerobic respiration occurs in _____.

Q. What is true about tRNA?

1. It binds with an amino acid at the 5'end
2. It has five double stranded regions
3. It has codon at one end which recognises the anticodon on messenger RNA.
4. It looks like clover leaf in the three dimensional structure

Q.

Is an aerobic respiration amphibolic pathway or a catabolic pathway?

Q.

In anaerobic respiration, complete breakdown of food takes place.

1. True
2. False

Q. Choose the best option with respect to facultative anaerobes.

1. Can perform aerobic respiration only
2. Can perform anaerobic respiration only
3. Can perform both aerobic and anaerobic respiration
4. None of these

Q.

Give an example of facultative anaerobes.

Q. Kind of cellular respiration which occurs in presence of oxygen is

1. anaerobic respiration
2. aerobic respiration
3. nitrogenous respiration
4. acidic respiration

Q. Choose the best option with respect to facultative anaerobes.

1. Can perform aerobic respiration only
2. Can perform both aerobic and anaerobic respiration
3. None of these
4. Can perform anaerobic respiration only

Q. Mitochondria isolated and placed in a buffered solution with a low pH begin to manufacture ATP. Which of the following is the best explanation for the effect of low external pH?

1. It increases the concentration of $O{H}^{–}$ causing the mitochondria to pump $H^{+}$
2. It increases the $O{H}^{–}$ concentration in the mitochondria matrix
3. It increases the acid concentration in the mitochondria matrix
4. It increases diffusion of $H^{+}$ from the intermembrane space to the matrix

Q. RBCs have mitochondria.

1. True
2. False

Q. Which one of the following mammalian cells is not capable of metabolizing glucose to $C{O}_2$ aerobically?

1. White blood cells
2. Unstriated muscle cells
3. Liver cells
4. Red blood cells

Q.

Illustrate obligatory aerobes with an example.

Q. Site of gluconeogenesis is

1. Mitochondria
2. Golgi bodies
3. Glyoxysomes
4. None of the above

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

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Both Assertion and Reason are incorrect.

Q. The overall goal of glycolysis, Krebs cycle and the electron transport system is the formation of

1. ATP in small stepwise reactions
2. ATP in one large oxidation reaction
3. Sugars
4. Nucleic acid

Q. Which one of the following mammalian cells is not capable of metabolizing glucose to $C{O}_2$ aerobically?

1. Unstriated muscle cells
2. White blood cells
3. Liver cells
4. Red blood cells

Q. Cellular respiration takes place in

1. Lysosome
2. Chlorophyll
3. Mitochondria
4. Ribosome

Q. Consider the following chemical reactions which take place in different organisms/tissues under various conditions:

(i) Glucose $\stackrel{Respiration}{\to }$ Ethanol + Carbon dioxide + Energy
(ii) Glucose $\stackrel{Respiration}{\to }$ Carbon dioxide + Water + Energy
(iii) Glucose $\stackrel{Respiration}{\to }$ Lactic acid + Energy

(a) Name one organism which respires according to equation (i) above.

Q. Breaking of $C-C$ bonds of complex compounds and release of energy within a cell is called:

1. Assimilation
2. Dissociation
3. Respiration
4. Fermentation

Q. Glyoxysomes occur in

1. Both plant and animal cells
2. Plant cells only
3. Animal cells only
4. All types of cells