Biology in Class 9 Science : Practice MCQ Questions & Answers with Explanations

Cuboidal epithelium is found in kidney tubules and helps in absorption and secretion.

The epidermis with a waxy cuticle reduces water loss from plants.

Xylem transports water and minerals, while phloem transports food.

Adipose tissue stores fat and provides insulation and cushioning.

Bone tissue stores minerals such as calcium and phosphorus.

Parenchyma is a simple permanent tissue involved in storage and photosynthesis.

Vessel elements are important conducting components of xylem.

Tendons connect muscles to bones and help in movement.

Phloem fibers provide mechanical support and strength to plants.

Stomata help in gaseous exchange and regulate water loss through transpiration.

Neurons are specialized cells that transmit electrical signals in the nervous system.

Cardiac muscle is involuntary, striated, and found only in the heart.

Simple squamous epithelium lines blood vessels and allows diffusion of gases and nutrients.

Nervous tissue transmits electrical impulses through neurons.

Muscular tissue contracts and relaxes to produce movement.

Xylem transports water and minerals from roots to other parts of the plant.

Apical meristem is responsible for growth in length at root and shoot tips.

Mitochondria generate ATP and contain their own DNA.

Lysosomes are commonly found in animal cells and are rare in plant cells.

Bacteria are prokaryotic cells that lack a membrane-bound nucleus.