Question

The term tissue system was given by.
A. Nehemiah Grew
B. Nageli
C. Tschiersch
D. Sachs.

Answer 1

The term tissue means a group of similar or dissimilar cells. The layers and masses formed by the cells having similar structures and functions are called tissues. The same cells in structure and function do not scatter in the body and are combined together. Thus tissues can be defined as “organized masses or layers of structurally similar cells of common embryonic origin and same functions”.

Complete answer:
The information regarding the term tissue system is given below:
It was coined by Nehemiah Grew
He first used this term in the year 1682.
He was a British plant anatomist and physiologist.
Nehemiah Grew is popularly known as ‘The Father of Plant Anatomy’.
Some points regarding tissue system are given below:
The cells in a tissue are held together by an intercellular substance, which is non-living and secreted by the cells themselves.
Each cell is surrounded by an intercellular substance which is known as ‘tissue fluid’.
The chemical exchange of a cell occurs between its cytoplasm and tissue fluid through the plasma membrane.
These tissues are of four basic types :
1. Epithelial tissue,
2. Connective tissue,
3. Muscular tissue,
4. Nervous tissue.
The group of similar cells called tissue performs particular functions.

So, the correct answer is option A.
Note: The contributions of other scientists given in the options are as follows:
Carl Nageli divided the tissues into two groups, namely formative tissues and structural tissues.
The term "sclereid" was given by Alexander Tschierch in 1885.
Julius von Sachs (1832–1897) is called “The Father of Plant Physiology” but he didn’t name the tissues.