The organelle that is the site of glycolysis is the: MCQ with Answer and Explanation

The organelle that is the site of glycolysis is the:
A. Nucleus
B. Cytoplasm
C. Golgi body
D. Mitochondria
Answer: Option B
Solution (By JKSSB Mock Tests)
Glycolysis, the breakdown of glucose to pyruvate, occurs in the cytoplasm of cells. The Krebs cycle and oxidative phosphorylation occur in mitochondria.

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Practice More Biology Questions

Question #1
The term for the death of tissue due to lack of blood supply is:
A. Necrosis
B. Atrophy
C. Apoptosis
D. Hypertrophy

Correct Answer: Option A


Explanation:
Necrosis is the premature death of cells or tissue due to injury, ischemia, or infection, often causing inflammation. Atrophy is shrinkage, hypertrophy growth, apoptosis programmed cell death. Infarction leads to coagulative necrosis.

This question belongs to: Science Biology
Question #2
The structure that connects the hypothalamus to the pituitary gland is the:
A. Corpus callosum
B. Pineal stalk
C. Optic chiasm
D. Infundibulum

Correct Answer: Option D


Explanation:
The infundibulum (pituitary stalk) physically connects the hypothalamus to the pituitary gland, transporting hormones and nerve signals.

This question belongs to: Science Biology
Question #3
In the XX-XY system of sex determination, the male is:
A. Haploid (X)
B. Homogametic (XX)
C. Heterogametic (XY)
D. Diploid (XX)

Correct Answer: Option C


Explanation:
In the XX-XY system of sex determination, found in humans and most mammals, females have two identical sex chromosomes (XX) and are homogametic, producing only X-bearing eggs. Males have two different sex chromosomes (XY) and are heterogametic, producing two types of sperm: 50% with X and 50% with Y. The sperm determines the sex of the offspring.

This question belongs to: Science Biology