Consider statements about nutrition: 1. Kwashiorkor is caused by protein deficiency. 2. Marasmus is caused by overall calorie deficiency. 3. Goiter is caused by iron deficiency. Which are correct? MCQ with Answer and Explanation

Question
Consider statements about nutrition: 1. Kwashiorkor is caused by protein deficiency. 2. Marasmus is caused by overall calorie deficiency. 3. Goiter is caused by iron deficiency. Which are correct?
A. 1 and 2 only
B. 2 and 3 only
C. 1, 2 and 3
D. 1 and 3 only
Answer: Option A
Solution (By JKExamLibrary)
Kwashiorkor is a severe form of malnutrition caused by inadequate protein intake despite sufficient calorie consumption. Marasmus results from a severe deficiency of both calories and protein, leading to extreme wasting. Goiter is the enlargement of the thyroid gland caused by iodine deficiency, not iron deficiency (which causes anemia). Thus, statements 1 and 2 are correct.
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Question #1
The term 'ecology' was coined by:
A. Gregor Mendel
B. Charles Darwin
C. Robert Hooke
D. Ernst Haeckel
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Correct Answer: Option D

Explanation:
Ernst Haeckel, a German zoologist, coined the term 'ecology' (Ökologie) in 1866, derived from Greek 'oikos' (house) and 'logos' (study), meaning the study of organisms in relation to their environment. Darwin contributed evolution, Mendel genetics, Hooke cell theory. Ecology encompasses interactions between organisms and their abiotic and biotic environment.
This question belongs to: Science Biology
Question #2
The process of taking in solid particles by a cell is called:
A. Phagocytosis
B. Exocytosis
C. Osmosis
D. Pinocytosis
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Correct Answer: Option A

Explanation:
Phagocytosis ('cell eating') is the engulfment of large particles or microbes by the cell membrane forming a phagosome. Pinocytosis is 'cell drinking' of liquids. Exocytosis is secretion.
This question belongs to: Science Biology
Question #3
Identify the INCORRECT statement about the human reproductive system:
A. Spermatogenesis occurs in the epididymis.
B. The Cowper’s glands secrete mucus for lubrication.
C. The scrotum maintains testes temperature lower than body temperature.
D. The seminal vesicles secrete a fructose-rich fluid.
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Correct Answer: Option A

Explanation:
Spermatogenesis occurs in the seminiferous tubules of the testes. The epididymis stores and matures sperm. So D is incorrect.
This question belongs to: Science Biology
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