The process of breakdown of glucose to pyruvate is called: MCQ with Answer and Explanation

The process of breakdown of glucose to pyruvate is called:
A. Electron transport chain
B. Fermentation
C. Glycolysis
D. Krebs cycle
Answer: Option C
Solution (By JKExamLibrary)
Glycolysis is a cytoplasmic pathway that converts glucose into two pyruvate molecules, producing a net of 2 ATP and 2 NADH. Krebs cycle and ETC are in mitochondria.

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Practice More Biology Questions

Question #1
Which of the following is a plant hormone that promotes seed germination?
A. Ethylene
B. Abscisic acid
C. Gibberellin
D. Cytokinin

Correct Answer: Option C


Explanation:
Gibberellins stimulate seed germination by activating synthesis of hydrolytic enzymes (amylase) that break down stored food reserves. They also promote stem elongation. Abscisic acid inhibits germination and promotes dormancy. Ethylene is for ripening, cytokinins for cell division. The GA:ABA ratio determines germination vs dormancy.

This question belongs to: Science Biology
Question #2
Mendel's experiments were performed on which plant?
A. Maize
B. Wheat
C. Rice
D. Pea (Pisum sativum)

Correct Answer: Option D


Explanation:
Gregor Mendel conducted his classic hybridization experiments on garden pea (Pisum sativum) between 1856 and 1863, establishing the fundamental laws of inheritance. He selected seven contrasting characters.

This question belongs to: Science Biology
Question #3
Consider statements about animal husbandry: 1. Dairy farming involves milk production. 2. Poultry farming involves meat and egg production. 3. Apiculture involves silk production. Which are correct?
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2 and 3

Correct Answer: Option A


Explanation:
Dairy farming is the agricultural practice of breeding and raising livestock (like cows, buffaloes, goats) specifically for the long-term production of milk and milk products. Poultry farming involves the commercial rearing of domesticated birds (like chickens, ducks, turkeys) for the production of meat (broilers) and eggs (layers). Apiculture is the scientific rearing and management of honeybees (Apis species) for the production of honey, beeswax, and other hive products; silk production is sericulture. Thus, statements 1 and 2 are correct.

This question belongs to: Science Biology