MCQ Collection
EJU Biology MCQs
Practice EJU Biology questions with answers and explanations.
Choose an option to check your answer.
Correct Answer: C. Two different alleles
Explanation:
Heterozygous means that the two alleles differ.
Choose an option to check your answer.
Correct Answer: B. Large surface area and thin walls
Explanation:
Large area, thin barriers and perfusion support gas exchange.
Choose an option to check your answer.
Correct Answer: A. Osmosis
Explanation:
Osmosis is the net movement of water across a selectively permeable membrane.
Choose an option to check your answer.
Correct Answer: A. Two different alleles
Explanation:
Heterozygous means that the two alleles differ.
Choose an option to check your answer.
Correct Answer: C. At ribosomes
Explanation:
Ribosomes translate mRNA into polypeptide.
Choose an option to check your answer.
Correct Answer: A. Insulin
Explanation:
Insulin promotes uptake and storage of glucose.
Choose an option to check your answer.
Correct Answer: D. Heritable variation affecting reproductive success
Explanation:
Selection acts on heritable variation linked to differential reproduction.
Choose an option to check your answer.
Correct Answer: B. Chloroplast
Explanation:
Chloroplasts contain the photosynthetic machinery.
Choose an option to check your answer.
Correct Answer: D. B lymphocytes
Explanation:
Activated B cells can become plasma cells.
Choose an option to check your answer.
Correct Answer: D. At ribosomes
Explanation:
Ribosomes translate mRNA into polypeptide.
Choose an option to check your answer.
Correct Answer: C. Energy is lost as heat and through metabolism
Explanation:
Energy transfers are inefficient and much is dissipated as heat.
Choose an option to check your answer.
Correct Answer: A. Two different alleles
Explanation:
Heterozygous means that the two alleles differ.
