EXAM LION
Biology Mock Test
Biology Mock Test
Which cell organelle is called the “powerhouse of the cell”? ||| Nucleus ||| Ribosome ||| Mitochondria ||| Golgi apparatus ||| 3
The basic unit of heredity is ||| RNA ||| DNA ||| Chromosome ||| Gene ||| 4
Which of the following is not a part of the human digestive system? ||| Liver ||| Stomach ||| Kidney ||| Intestine ||| 3
Which blood group is considered a universal donor? ||| A ||| B ||| AB ||| O ||| 4
The enzyme responsible for converting glucose to pyruvate is active in ||| Mitochondria ||| Cytoplasm ||| Nucleus ||| Chloroplast ||| 2
Which plant hormone promotes cell elongation? ||| Cytokinin ||| Ethylene ||| Auxin ||| Gibberellin ||| 3
In humans, the number of chromosome pairs is ||| 46 ||| 44 ||| 23 ||| 22 ||| 3
The functional unit of the kidney is ||| Nephron ||| Alveolus ||| Neuron ||| Glomerulus ||| 1
The pulmonary vein carries ||| Oxygenated blood ||| Deoxygenated blood ||| Mixed blood ||| Lymph ||| 1
Which of the following is responsible for photosynthesis? ||| Mitochondria ||| Golgi bodies ||| Ribosomes ||| Chloroplasts ||| 4
Which type of immunity is obtained by vaccination? ||| Natural passive ||| Natural active ||| Artificial passive ||| Artificial active ||| 4
The sex of a child is determined by the ||| X chromosome of the mother ||| Y chromosome of the father ||| X chromosome of the father ||| Nutrition of the mother ||| 2
Darwin proposed the theory of ||| Acquired characters ||| Natural selection ||| Mutation ||| Artificial selection ||| 2
Which is the longest bone in the human body? ||| Humerus ||| Tibia ||| Femur ||| Radius ||| 3
Which gas is released during photosynthesis? ||| \( \text{CO}_2 \) ||| \( \text{N}_2 \) ||| \( \text{H}_2 \) ||| \( \text{O}_2 \) ||| 4
Which vitamin is produced in the skin in the presence of sunlight? ||| Vitamin A ||| Vitamin B ||| Vitamin C ||| Vitamin D ||| 4
DNA replication occurs during which phase of the cell cycle? ||| G1 phase ||| S phase ||| G2 phase ||| M phase ||| 2
The site of protein synthesis in the cell is ||| Ribosome ||| Lysosome ||| Vacuole ||| Mitochondria ||| 1
Which part of the brain controls voluntary actions? ||| Cerebrum ||| Cerebellum ||| Medulla ||| Hypothalamus ||| 1
Which disease is caused by Plasmodium? ||| Dengue ||| Malaria ||| Cholera ||| AIDS ||| 2