Yeast is an important source of most B vitamins (except B₁₂) and folate and contains potassium and magnesium. It is used in the preparation of vitamin B complex tablets.

Correct Option: A

Yeast is an important source of most B vitamins (except B₁₂) and folate and contains potassium and magnesium. It is used in the preparation of vitamin B complex tablets.

The seed includes three primary regions: the embryo, nutritive tissue, and seed coat. Endosperm is a nutritive tissue that sustains the embryo and seedling. The endosperm may be consumed by the embryo, as in many legumes, which use the cotyledons as a food source during germination.

Correct Option: C

The seed includes three primary regions: the embryo, nutritive tissue, and seed coat. Endosperm is a nutritive tissue that sustains the embryo and seedling. The endosperm may be consumed by the embryo, as in many legumes, which use the cotyledons as a food source during germination.

Nephron is the basic structural and functional unit of the kidney. Its chief function is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine.

Correct Option: B

Nephron is the basic structural and functional unit of the kidney. Its chief function is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine.

Cellulose is an important structural component of the primary cell wall of green plants, many forms of algae and the oomycetes. It is a complex carbohydrate, (C₆H₁₀O₅)n, that is composed of glucose units.

Correct Option: D

Cellulose is an important structural component of the primary cell wall of green plants, many forms of algae and the oomycetes. It is a complex carbohydrate, (C₆H₁₀O₅)n, that is composed of glucose units.

It is generally considered that the Panda belongs to the bear family, though differences persist. Some DNA studies have shown that the giant panda is closer to the bear family while the red panda is indeed closer to the raccoon family.

Correct Option: D

It is generally considered that the Panda belongs to the bear family, though differences persist. Some DNA studies have shown that the giant panda is closer to the bear family while the red panda is indeed closer to the raccoon family.