MEDIUM
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Conversion of pyruvic acid into lactic acid depends upon

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Important Questions on Respiration in Plants

EASY
Define fermentation. Write the names of substrate of alcoholic and lactic acid fermentation.
EASY
Which of the following conversions in glycolysis is an example of substrate level phosphorylation?
EASY
_____ is the common pathway for aerobic and anaerobic respiration. 
EASY
What amount of energy is released from glucose during lactic acid fermentation?
MEDIUM

Respective products released along with main product in biochemical reactions catalysed by given enzymes

A) Glutamine synthetase                      I) NADH + H​​​​​​+

B) Fructose 1,6-bisphosphatase        II) ADP + Pi

C) Hexokinase                                      III) Inorganic phosphate

D) Malate dehydrogenase                   IV) ADP

MEDIUM

Assertion (A): Anaerobic respiration yields less energy utilizing oxygen.

Reason (R): In anaerobic respiration, energy is released due to the incomplete breakdown of organic molecules.

HARD

Which ONE of the following statements is INCORRECT about the hexokinase-catalysed reaction given below?

Glucose + ATP Glucose-6-phosphate+ADP

HARD
Find out in which of the following enzymatic reactions, NADH is converted to NAD.
(A) Acetaldehyde Ethanol
(B) Glyceraldehyde 3- Phosphate 3 - phosphoglyceric acid
(C) Pyruvic acid lactic acid
(D) Oxalosuccinic acid α-ketoglutaric acid
(E) α-ketoglutaric acid succinyl CoA
EASY
Which one of the following metabolic conversion requires oxygen?
EASY
Which one of the following gases is produced during fermentation by yeast?
EASY
What is the role of NAD+ in cellular respiration?
EASY
In which one of the following processes CO2 is not released?
EASY

Assertion (A) :- The pathway from glucose to lactic acid occurs in 10 metabolic steps. Organisms will trap this energy and store in the form of chemical molecules.

Reason (R) :- Glucose is the only substrate for the production of energy.

The correct option among the following is:

EASY
Which ONE of the following conversions does NOT happen under anaerobic conditions?
EASY
Identify the substrate level phosphorylation reactions among the following
A) Triose bis Phosphate to triose phosphate
B) Phosphoglycerate to Phosphoenol pyruvate
C) Succinyl CoA to Succinic acid
D) Malic acid to OAA
MEDIUM
Write the difference between Aerobic and Anaerobic respiration.
EASY
Muscle fatigue is caused due to accumulation of this substance in the muscle
MEDIUM
During fermentation of glucose to ethanol, glucose is:
HARD

Arrange the following in the order of their occurrence in the glycolytic pathway.

I. Triose bisphosphate Triose phosphate

II. Fructose-6-phosphate  Fructose 1,6-bisphosphate

III. Phosphoenolpyruvate  Pyruvic acid

IV. 2-Phosphoglycerate Phosphoenolpyruvate

V. Glucose-6-phosphate Fructose-6-phosphate

VI. Triose phosphate 2-Phosphoglycerate

The correct sequence is:

EASY
Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by: