Question

what is cell and its work
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Answer 1

Answer:

• Cells are the basic, fundamental unit of life. So, if we were to break apart an organism to the cellular level, the smallest independent component that we would find would be the cell.

• Cells are the fundamental unit of life. They range in size from 0.0001 mm to nearly 150 mm across
• All organisms are made up of cells. They may be made up of a single cell (unicellular), or many cells (multicellular).  Mycoplasmas are the smallest known cells.

Characteristics of Cells

Following are the various essential characteristics of cells:  

• Cells provide structure and support to the body of an organism.
• The cell interior is organised into different individual organelles surrounded by a separate membrane.
• The nucleus(major organelle) holds genetic information necessary for reproduction and cell growth.
• Every cell has one nucleus and membrane-bound organelles in the cytoplasm.
• Mitochondria, a double membrane-bound organelle is mainly responsible for the energy transactions vital for the survival of the cell.
• Lysosomes digest unwanted materials in the cell.
• Endoplasmic reticulum plays a significant role in the internal organisation of the cell by synthesising selective molecules and processing, directing and sorting them to their appropriate locations

Cell Functions

A cell performs these major functions essential for the growth and development of an organism. Important cell functions are as follows:

• Provides Support and Structure
• Facilitate Growth Mitosis
• Allows Transport of Substances
• Energy Production
• Aids in Reproduction

Highlight the cell structure and its components.

• Cell membrane

• Cell wall

• Cell organelles

• Nucleolus

• Nuclear membrane

• Endoplasmic reticulum

• Golgi Bodies

• Ribosome

• Mitochondria

• Lysosomes

• Chloroplast

• Vacuoles

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Answer 2

Answer:

Explanation:

A cell is the fundamental structural and functional unit of all living being.

Its work are:-

i) to transport oxygen to all parts of the body with the help of blood.

ii) to transport carbon dioxide from all parts of the body to the lungs.

iii) helps to convert energy (ATP)from the food.