Explanation

• The skin is considered the largest organ of the human body.
• It covering an area of about 1.5-2 square meters (16-22 square feet).
• It weighing around 3-4 kilograms (7-9 pounds).

Last verified on 01-09-2026

Explanation

Homeostasis is the set of metabolic reactions that maintain the internal environment of an organism, regulating factors.

Such as temperature, pH, blood sugar levels, and blood pressure.

Explanation

Chondrocytes are the cells that make up cartilage, a type of connective tissue found in various parts of the body, such as joints, ears, nose, and ribs.

Chondrocytes produce and maintain the cartilage matrix, which consists of collagen and proteoglycans.

Explanation

Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms.

Explanation

The Frontal Lobe (part of the Cerebrum) controls reasoning, planning, and problem-solving.

More Details
Cerebellum → balance & coordination,
Medulla → involuntary actions,
Cerebrum → higher thinking functions, divided into 4 lobes (Frontal, Parietal, Temporal, Occipital).

Explanation

The cerebellum is responsible for:

• Coordinating movements
• Maintaining posture and balance
• Regulating muscle tone
• Learning new motor skills
• Precision and accuracy in movements

Explanation

The respiratory surface, where gas exchange occurs, is the alveoli.

Alveoli are tiny sacs located at the end of the bronchioles, deep in the lungs.

They provide a large surface area for the exchange of oxygen and carbon dioxide between the lungs and the bloodstream.

Explanation

The lens in the human eye is a convex lens, meaning it is thicker in the middle than at the edges.

This shape allows it to focus light rays convergently, creating a real image on the retina.

A convex lens is also known as a converging lens, as it converges light rays to a focal point.

Explanation

The equilibrium constant, Kc, for the reaction:

N2 + O2 ⇌ 2NO is unitless (No unit).

Since the number of moles of gas is the same on both the reactant and product sides (2 moles).

The concentration terms in the equilibrium constant expression cancel out, leaving Kc without units.

Explanation

Immunization is actually the process of becoming immune to a disease, typically through vaccination.

It is not an effect of misusing antibiotics.