Explanation

Rhizopus is a genus of mold that belongs to the kingdom Fungi.

It is commonly found on bread, fruits, and decaying organic matter.

It reproduces through spores.

It is known for its role in food spoilage and some industrial applications.

Explanation

Oxygen is a byproduct of photosynthesis, not a required factor for the process.

Light, carbon dioxide, and chlorophyll are essential for photosynthesis to occur.

Explanation

Centrioles are present only in animal cells.

They are involved in cell division (spindle formation).

Higher plant cells typically lack centrioles and instead organize their spindle fibers differently.

Explanation

Polythene bags are synthetic plastics that do not decompose naturally, taking hundreds of years to break down.

Unlike organic materials like feathers, paper, and wood, polythene bags contribute to environmental pollution.

Explanation

The religious concept of health is the earliest, where health was often considered a divine gift or a state of moral and spiritual well-being.

Over time, this evolved into the biomedical and psycho-social concepts of health, which focus on physical and mental well-being, respectively.

Explanation

Raffinose is a trisaccharide, composed of galactose, glucose, and fructose.

Lactose is a disaccharide.

Fructose is a monosaccharide.

Explanation

The elbow is a joint, while thumb, finger, and toe are all specific digits on the body.

Elbow refers to a part of the limb, not a digit like the others.

Explanation

In isometric contraction, muscle length remains the same while tension increases.

No visible movement occurs, as seen in activities like holding a plank or pushing against a wall.

Explanation

The occipital lobe of the brain processes visual information received from the eyes.

It interprets signals related to color, shape, and motion, enabling vision.

Explanation

Double fertilization occurs in angiosperms like Brassica

Where one sperm fertilizes the egg, and another fuses with the central cell to form endosperm.

Bryophytes and gymnosperms (e.g., pine).

Last updated 17-02-2026