Kwashiorkor is a severe form of malnutrition primarily caused by: MCQ with Answer and Explanation

Kwashiorkor is a severe form of malnutrition primarily caused by:
A. Calorie deficiency
B. Vitamin A deficiency
C. Protein deficiency
D. Iron deficiency
Answer: Option C
Solution (By JKExamLibrary)
Kwashiorkor is a severe form of malnutrition in children caused by a significant deficiency of protein in the diet, despite potentially adequate calorie intake. It is characterized by edema (swelling, especially in the belly due to low albumin), an enlarged liver, thinning hair, and a 'flaky paint' skin rash. Marasmus is caused by overall protein-calorie deficiency.

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Practice More Biology Questions

Question #1
The Hardy-Weinberg equation p^2 + 2pq + q^2 = 1 is used to calculate:
A. The expected genotype frequencies in a population
B. The carrying capacity of an ecosystem
C. The rate of mutation in a population
D. The energy transfer between trophic levels

Correct Answer: Option A


Explanation:
The Hardy-Weinberg equation is a fundamental principle in population genetics used to calculate the expected frequencies of genotypes in a population that is not evolving (in genetic equilibrium). 'p' represents the frequency of the dominant allele, and 'q' represents the frequency of the recessive allele. p^2 is the frequency of the homozygous dominant genotype, 2pq is the heterozygous genotype, and q^2 is the homozygous recessive genotype.

This question belongs to: Science Biology
Question #2
The hormone that stimulates the formation of red blood cells is:
A. Erythropoietin
B. Thrombopoietin
C. Colony-stimulating factor
D. Interleukin

Correct Answer: Option A


Explanation:
Erythropoietin (EPO), mainly from kidneys, promotes erythropoiesis in bone marrow. Thrombopoietin stimulates platelets, interleukins are immune cytokines, CSFs for white blood cells. EPO is used to treat anemia.

This question belongs to: Science Biology
Question #3
The process of converting food into energy in cells is:
A. Transpiration
B. Cellular respiration
C. Fermentation
D. Photosynthesis

Correct Answer: Option B


Explanation:
Cellular respiration breaks down glucose and other nutrients in the presence of oxygen to produce ATP. Photosynthesis builds glucose, fermentation is anaerobic energy production, transpiration is water loss.

This question belongs to: Science Biology