Microcytic anaemia: anemia characterized by small red blood cells, due to deficiency of iron; Pernicious anaemia: body does not make enough red blood cells due to lack of vitamin B₁₂; Goitre: swelling of the neck or larynx resulting from iodine deficiency; and Pellagra: chronic lack of niacin (vitamin B₃).

Correct Option: D

Microcytic anaemia: anemia characterized by small red blood cells, due to deficiency of iron; Pernicious anaemia: body does not make enough red blood cells due to lack of vitamin B₁₂; Goitre: swelling of the neck or larynx resulting from iodine deficiency; and Pellagra: chronic lack of niacin (vitamin B₃).

The pancreas, located in the abdomen close to the stomach, is both an exocrine and an endocrine gland. Similarly, gonads (both ovaries and testes) are examples of organs that have both endocrine and exocrine functions. The endocrine function of the gonads is the production of the sex hormones (estrogens and androgens); while their exocrine function is to produce gametes

Correct Option: A

The pancreas, located in the abdomen close to the stomach, is both an exocrine and an endocrine gland. Similarly, gonads (both ovaries and testes) are examples of organs that have both endocrine and exocrine functions. The endocrine function of the gonads is the production of the sex hormones (estrogens and androgens); while their exocrine function is to produce gametes

Monocytes are the largest white blood cell. When they leave the blood they’re called macrophages. Macrophages work with lymphocytes as antigen presenting cells.

Correct Option: B

Monocytes are the largest white blood cell. When they leave the blood they’re called macrophages. Macrophages work with lymphocytes as antigen presenting cells.

Enzymes are proteins that speed up chemical reactions in the cell. They are highly selective catalysts, greatly accelerating both the rate and specificity of metabolic reactions. Most enzymes are proteins, although some catalytic RNA molecules have been identified.

Correct Option: C

Enzymes are proteins that speed up chemical reactions in the cell. They are highly selective catalysts, greatly accelerating both the rate and specificity of metabolic reactions. Most enzymes are proteins, although some catalytic RNA molecules have been identified.

Kala-azar: caused by protozoan parasites; Tuberculosis: infectious disease caused by various strains of myco-bacteria; Influenza: caused by RNA viruses; and Ringworm: fungal infection of the skin.

Correct Option: B

Kala-azar: caused by protozoan parasites; Tuberculosis: infectious disease caused by various strains of myco-bacteria; Influenza: caused by RNA viruses; and Ringworm: fungal infection of the skin.