The type of stem modification found in ginger is: MCQ with Answer and Explanation

The type of stem modification found in ginger is:
A. Tuber
B. Corm
C. Rhizome
D. Bulb
Answer: Option C
Solution (By JKSSB Mock Tests)
Ginger is a rhizome, an underground modified stem growing horizontally, bearing nodes, internodes, scale leaves, and buds. Potato is a tuber, gladiolus a corm, onion a bulb (modified stem with fleshy leaf bases). Rhizomes store food and aid vegetative propagation.

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Practice More Biology Questions

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

Correct Answer: Option D


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
Which of the following vitamins is essential for blood clotting?
A. Vitamin K
B. Vitamin C
C. Vitamin A
D. Vitamin E

Correct Answer: Option A


Explanation:
Vitamin K is a fat-soluble vitamin required for the synthesis of clotting factors II (prothrombin), VII, IX, and X in the liver. Deficiency leads to prolonged clotting time and bleeding disorders. Vitamin A is for vision, C for collagen synthesis and antioxidant, E for antioxidant. Vitamin K is found in green leafy vegetables and synthesized by gut bacteria.

This question belongs to: Science Biology
Question #3
Consider statements about human nutrition: 1. Carbohydrates provide energy. 2. Proteins build and repair tissues. 3. Fats are harmful and should be avoided. Which are correct?
A. 1 and 2 only
B. 2 and 3 only
C. 1, 2 and 3
D. 1 and 3 only

Correct Answer: Option A


Explanation:
Carbohydrates are the body's primary and most efficient source of energy, broken down into glucose to fuel cellular activities and physical exertion. Proteins are essential macronutrients composed of amino acids, crucial for the growth, maintenance, and repair of body tissues, as well as forming enzymes, hormones, and antibodies. Fats are essential macronutrients; they provide concentrated energy, are vital for cell membrane structure, aid in the absorption of fat-soluble vitamins, and provide essential fatty acids. They should not be entirely avoided. Thus, statements 1 and 2 are correct.

This question belongs to: Science Biology