Question

constituent cells meaning

Answer 1

Cells are composed of water, inorganic ions, and carbon-containing (organic) molecules. Water is the most abundant molecule in cells, accounting for 70% or more of total cell mass. Consequently, the interactions between water and the otherconstituents of cells are of central importance in biological chemistry.

Answer 2

Constituent cell means structural and functional unit of all living beings

Explanation:

• A cell (latin, cellula- a small compartment) is the smallest unit that exhibit the properties of life and is known as the structural and functional unit of all living beings .

• Robert Hooke (1665) first saw and Antony Von Leeuwenhoek described the first living cell.

• Robert Brown later discovered the nucleus.

• Properties of cell:

1. Cells are complex and highly organised structures containing many internal components.
2. Cells contain a genetic blueprint.
3. Cells arise from the division of other cells ,i.e. pre -existing cells.
4. Cells acquire and utilise energy to perform chemical and mechanical activities.

• The branch which deals with the study of cell and its organelles is called cytology.