Revision: Introduction to Biotechnology Science SSC (English Medium) 9th Standard Maharashtra State Board

The tissue is a group of cells of similar structure and function.

Vascular tissue is the complex plant tissue in higher plants that are composed of xylem and phloem and is concerned with conducting water, minerals, and organic food throughout the plant body.

A tissue, in biology, is defined as a group of cells that have a similar structure and perform a specific function. The word tissue originates from French, which means "to weave."

• Cells that perform a particular function always live in a group. This group of cells is called a tissue.
• For example, blood, phloem, muscle, etc. are examples of tissues.

A group of similar cells which perform a specific function.
example: Muscular tissue in animals.

A tissue is a group of cells that are similar in structure and are organized together to perform a specific task.

The zone on the earth in which all living beings exist is termed as the biosphere.

A group of living organisms that can breed among themselves constitute a species.

The population of all plant and animal species living in a particular area constitutes a biotic community.

All the members or individuals of a particular species living in a particular area constitute its population.

The epithelial cells are connected to each other laterally as well as to the basement membrane by junctional complexes called cell junctions.

The tissue which connects various tissues together in any organ is called connective tissue.

An organ is a group of tissues that work together to perform a specific function or set of functions in the body.

The heart, lungs, liver, and kidneys are examples, each playing a vital role in maintaining the body's overall health and function.

The cells that constitute nervous tissue are called neurons or nerve cells.

Meristematic tissue is a group of cells that constantly divide and produce cells indefinitely throughout the life of the plant.

Permanent tissue refers to a group of cells which temporarily or permanently cease to divide and thus assume permanent form and function

The technique of bringing about improvements in living organisms by genetic modifications and hybridization, for the welfare of human beings is known as ‘Biotechnology’.

A group of cells having the same origin, same structure and same function is called ‘tissue’.

'Ex vivo growth of cells or tissues in an aseptic and nutrient-rich medium’ is called tissue culture.

or

Tissue culture is the technique of growing plant cells, tissues or organs under controlled laboratory conditions for crop improvement.

It is a livestock breeding and growing practice in agriculture.

• Biotechnology involves the use of biological systems, cells, and biomolecules along with genetic and non-genetic techniques for human welfare.
• It integrates sciences such as cytology, biochemistry, molecular biology, and genetic engineering and has major applications in agriculture and pharmacy.
• Biotechnology enables production of antibiotics, vaccines, hormones (insulin), antibodies, and development of high-yield crop varieties through tissue culture and gene manipulation.
• Major benefits include increased crop yield, development of disease- and stress-resistant varieties, and reduced expenditure on disease control.
• In India, biotechnology is promoted by the Department of Biotechnology (DBT) established in 1986, under which several national research institutes function.