Biology in Class 10 : Practice MCQ Questions & Answers with Explanations

Pollen grains, produced in the anthers of flowering plants, carry the male gametes required for fertilization. They transfer genetic material to the ovules in the ovary.

A reflex arc is a simple, direct neural pathway that facilitates an immediate and automatic response to a stimulus, such as withdrawing a hand from a hot surface.

Chlorophyll is the green pigment in plant cells, primarily located in chloroplasts. It captures sunlight energy for photosynthesis, enabling the plant to produce food.

The pancreas produces insulin, a hormone vital for regulating blood glucose levels by facilitating the uptake of glucose into cells and reducing blood sugar levels.

Red blood cells contain hemoglobin, a protein that binds oxygen in the lungs and delivers it to tissues throughout the body, ensuring cells receive energy to function.

Auxin is a plant hormone that plays a crucial role in regulating plant growth and directional responses to light (phototropism) and gravity (geotropism).

The nephron is the structural and functional unit of the kidney. It filters blood, removes waste products, and regulates water and salt balance, forming urine.

The cell is the fundamental building block of all living organisms. It performs essential life processes and forms the structural framework of tissues and organs.