Question 1:

What is the primary component of bones?

Explanation: The primary component of bones is B) Collagen. Collagen is a fibrous protein that provides strength and flexibility to the bone structure. It forms the framework upon which calcium and other minerals are deposited, giving bones their hardness and rigidity.

Question 2:

Which type of bone cells are responsible for bone formation?

Explanation: C) Osteoblasts are responsible for bone formation. They synthesize and secrete the organic matrix of the bone, which includes collagen and other proteins. Osteoblasts play a crucial role in the process of bone remodeling and repair.

Question 3:

Which of the following is not a type of bone?

Explanation: C) Round bone is not a type of bone. The main types of bones in the human skeletal system are long bones (e.g., femur), flat bones (e.g., skull bones), short bones (e.g., carpals), and irregular bones (e.g., vertebrae).

Question 4:

Which part of the bone is responsible for producing blood cells?

Explanation: The correct answer is A) Epiphysis. The epiphysis is the rounded end of a long bone and contains red bone marrow, which is responsible for the production of blood cells (hematopoiesis).

Question 5:

Which mineral is the primary component of the inorganic matrix of bones?

Explanation: The correct answer is C) Calcium. Calcium is the primary mineral component of the inorganic matrix of bones. It combines with phosphate ions to form hydroxyapatite crystals, which give bones their hardness and strength.