Explanation

A vacuole is a sac-like organelle in cells that stores waste materials, water, and nutrients before they are removed or used by the cell.

It plays a key role in maintaining cell homeostasis.

Explanation

The cell is the smallest unit of life.

Cells are called ‘structural’ and ‘functional’ units for a reason.

Cells are made of molecules which are in turn made up of atoms.

“Cell is the unit of LIFE” is that a cell is the smallest living entity in a living system.

Explanation

Explanation

Capillaries are very tiny blood vessels, that a single red blood cell can barely fit through them.

Explanation

White blood cells are called soldiers of the body, because the white blood cells provide immunity to our body.

They help in fighting against diseases, infections, allergies and foreign particles.

Explanation

The largest blood vessel in the body is the: Aort

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The blood vessels that supply blood to heart muscles are: Coronary arteries

Blood vessels that carry blood away from the heart toward body tissues are called:  Arteries

The smallest blood vessels are called capillaries.

Explanation

ATP (Adenosine Triphosphate) is called the energy currency of the cell because it stores and provides energy for cellular activities.

It releases energy when converted to ADP (Adenosine Diphosphate), which is then recycled back into ATP through cellular respiration.

Explanation

Discoverer of Cell: Robert Hook

Robert Hook described the cell as: Basic unit of life

Explanation

Explanation

Cations are positively charged ions. 

Cations are formed when a metal loses its electrons.