Question

Difference between unicellular and multicellular organisms meritnation

Answer 1

Answer:

The main difference between unicellular and multicellular is some organisms are made-up of single cell termed as unicellular while multicellular are made-up of two or more cells. Single celled organism is called unicellular organism

Answer 2

Answer:

Unicellular Organisms-

• They are simple, minute single-celled organisms

• Division of labor is at organelle level

• It gives very less efficiency

• They do not contain membrane-bound cell organelles

• Transportation mechanism is just diffusion

• the cell and its organelles are exposed openly

• Only visible under the microscope

• Asexual Reproduction occurs in them

• Sexually reproduce by conjugation

• Their life span is very short.

E.g., euglena, amoeba.

Multicellular Organisms-

• They are composed of some cells.

• Division of labor is at a Higher level, e.g., cells, tissues or organs.s

• They provide a high level of efficiency.

• They contain membrane-bound it cell organelle like Golgi body, mitochondria.

• Transportation occurs through the active and passive mechanism.

• The cell is covered by many layered membranes.

• Generally visible to the naked eye

• Reproduce sexually by producing gametes.

• Their life span is comparatively long.

• Injury to a single cell does not lead to the whole organism death.

E.g. - animals, plants etc.

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