Glycolysis

Q. Why are $C_4$ plants special ?
(i) Have a special type of leaf anatomy.
(ii) Tolerate higher temperatures.
(iii) Show a response to high light intensities.
(iv) Lack of a process called photorespiration.
(v) Have greater productivity of biomass.

1. All of these
2. (i), (ii), (iii) and (iv)
3. (i), (iii) and (iv)
4. (i) and (ii)

Q.

The enzyme that converts glucose to ethyl alcohol is

1. Maltase

2. Zymase

3. Diastase

4. Invertase

Q.

C4 plants differ from C3 plants because they

1. produce a four-carbon final sugar product

2. form a C4 molecule prior to entering the Calvin cycle

3. run photosynthesis at night when water loss through stomata is minimized

4. require four times the solar energy to produce a sugar molecule

Q. Select the correct order of reactions in glycolysis.
I. Conversion of 3 phosphoglyceraldehyde to 1, 3 bisphosphoglycerate.
II. Conversion of 3 phosphoglyceric acid to 2 phosphoglycerate.
III. Conversion of 1, 3-BPGA to 3 phosphoglyceric acid.
IV. Splitting of fructose 1, 6-bisphosphate into dihydroxy acetone phosphate and 3 phosphoglyceraldehyde.

1. IV, III, I, II
2. II, III, I, IV
3. IV, II, I, III
4. I, IV, III, II
5. IV, I, III, II

Q. Glycolysis is found in the cytoplasm of virtually all kinds of aerobic/anaerobic cells. In this process, glucose is converted into:

1. PEP
2. Acetyl $CoA$
3. Pyruvic acid
4. Citric Acid

Q.

Select the incorrectly matched pair with regard to the C₄ cycle.

1. Location of enzyme RuBisCO - Bundle sheath cells

2. C₄ plant - Maize

3. Primary CO₂ acceptor - PEP

4. Site of initial carboxylation - Mesophyll cells

5. Primary CO₂ fixation product - PGA

Q. is a common step for both aerobic and anaerobic respiration and results in the formation of .

1. Kreb's cycle
2. Glycolysis
3. TCA cycle
4. pyruvate
5. acetyl-Co-A
6. oxygen

Q.

The enzymes which take part in glycolysis are found in

1. Mitochondria

2. Cytoplasm

3. Mitochondria and cytoplasm

4. Vacuoles

Q. Red Blood Cells or RBCs

1. carry out both glycolysis and aerobic respiration
2. carry out glycolysis but not aerobic respiration
3. carry out aerobic respiration but not glycolysis
4. carry out neither glycolysis nor aerobic respiration

Q.

Differentiate between

(a) Respiration and Combustion

(b) Glycolysis and Krebs’ cycle

(c) Aerobic respiration and Fermentation

Q. Which of the following statements is/are correct?
i. Glycolysis is observed in aerobic organisms only.
ii. Sucrose is converted to two glucose molecules with the help of invertase enzyme.
iii. Glycolysis results in complete oxidation of glucose into pyruvic acid.

1. Only i is correct
2. Both i and iii are correct
3. Only ii is correct
4. None of the above

Q.

Which of the following statement(s) is/are correct?
(i) Pyruvate can be converted into ethanol and carbon dioxide by yeast
(ii) Fermentation takes place in aerobic bacteria
(iii) Fermentation takes place in mitochondria
(iv) Fermentation is a form of anaerobic respiration

1. (i) and (iii)

2. (ii) and (iv)

3. (i) and (iv)

4. (ii) and (iii)

Q.

Enzymes which catalyse the interconversion of optical, geometrical or positional isomers are

1. Ligases

2. Isomerases

3. Hydrolases

4. Lyases

Q. During glycolysis fructose 1, 6-bisphosphate is split into

1. Dihydroxyacetone phosphate and 2-phosphoglyceraldehyde
2. Dihydroxyacetone phosphate and 1-phosphoglyceraldehyde
3. Dihydroxyacetone phosphate and 2-phosphoglycerate
4. Dihydroxyacetone phosphate and 3-phosphoglyceraldehyde

Q. where does glycolisis take place

Q. Which of the following groups of organisms perform glycolysis?

1. Eukaryotes only
2. Prokaryotes only
3. Both eukaryotes and prokaryotes
4. None of the above

Q. Product of glycolysis is

1. Citric acid
2. Dihydroxy acetone
3. Pyruvic acid
4. Phosphoenol pyruvate