Question

write a note on multicellular tissue

in detail​

Answer 1

Multicellular Definition

A tissue, organ or organism that is made up of many cells is said to be multicellular. Animals, plants, and fungi are multicellular organisms and often, there is specialization of different cells for various functions. In contrast, unicellular, or single-celled organisms are much smaller in size and less complex as they are composed of just one cell that senses its environment, gathers nutrients and reproduces asexually.

Examples of Multicellular Organisms

Organs and Tissues

Multicellular organisms delegate biological responsibilities such as barrier function, circulation, digestion, respiration and sexual reproduction to specific organ systems such as the skin, heart, stomach, lungs, and sex organs. These organs are comprised of many different cells and cell types that work together to perform specific tasks. For example, cardiac muscle cells have more mitochondria and produce adenosine triphosphate to beat together and power the movement of blood through the circulatory system. In contrast, while skin cells have less mitochondria and do have contractile function, they have tight barrier junction proteins and produce keratin that creates a barrier protecting the soft inner tissues of the body.

Answer 2

A tissue, organ or organism that is made up of many cells is said to be multicellular. Animals, plants, and fungi are multicellular organisms and often, there is specialization of different cells for various functions.