The form in which glucose is stored in liver and muscle cells is: MCQ with Answer and Explanation

The form in which glucose is stored in liver and muscle cells is:
A. Sucrose
B. Glycogen
C. Cellulose
D. Starch
Answer: Option B
Solution (By JKSSB Mock Tests)
Glycogen is a highly branched polysaccharide of glucose, the storage form in animals, found mainly in the liver and skeletal muscles. Starch is the plant equivalent. Cellulose is structural in plants, sucrose is a disaccharide. Glycogen can be rapidly mobilized to maintain blood glucose.

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Practice More Biology Questions

Question #1
Which branch of biology deals with the study of fungi?
A. Phycology
B. Mycology
C. Bryology
D. Pteridology

Correct Answer: Option B


Explanation:
Mycology is the study of fungi, including yeasts and molds. Phycology deals with algae, bryology with mosses and liverworts, and pteridology with ferns. Fungi are eukaryotic, heterotrophic organisms with chitinous cell walls. The term mycology derives from Greek 'mykes' meaning mushroom. Alexander Fleming's discovery of penicillin from the fungus Penicillium notatum revolutionized medicine. Mycology is crucial for understanding fungal diseases and antibiotic production.

This question belongs to: Science Biology
Question #2
Consider statements about ribosomes: 1. They are non-membranous organelles. 2. Prokaryotic ribosomes are 80S. 3. They are the site of protein synthesis. Which are correct?
A. 1, 2 and 3
B. 2 and 3 only
C. 1 and 3 only
D. 1 and 2 only

Correct Answer: Option C


Explanation:
Ribosomes are dense, spherical, non-membranous structures composed of RNA and proteins. They are the cellular factories for protein synthesis. Prokaryotic ribosomes are 70S (50S + 30S subunits), while eukaryotic cytoplasmic ribosomes are 80S (60S + 40S subunits). Therefore, statements 1 and 3 are correct, but statement 2 is false.

This question belongs to: Science Biology
Question #3
The plant tissue that provides mechanical support and is dead at maturity is:
A. Aerenchyma
B. Sclerenchyma
C. Parenchyma
D. Collenchyma

Correct Answer: Option B


Explanation:
Sclerenchyma cells have thick, lignified secondary walls and are often dead at maturity, providing rigid structural support. Fibers and sclereids are examples. Parenchyma is living and thin-walled, collenchyma living with uneven thickening, aerenchyma has air spaces.

This question belongs to: Science Biology