Question

C. Given below is an incomplete table relating to plant tissues relating to plant tissues, their
location and function. Study the table and fill in the blanks numbered from 1 to 10.
(5 marks)
Tissue
Location
Function
Apical meristem
1
2
3
Cortex and
phloem
Stores food
material
Nodes/internodes
Elongation of
plant parts
un
6
Increase in
diameter (girth) of
stem and roots
7
8
Collenchyma
9
10
Epidermis​

Answer 1

Answer:

From the last chapter, we recall that all living organisms are made of cells. In unicellular organisms, a single cell performs all basic functions. For example, in Amoeba, a single cell carries out movement, intake of food and respiratory gases, respiration and excretion. But in multi-cellular organisms there are millions of cells. Most of these cells are specialised to carry out a few functions. Each specialised function is taken up by a different group of cells. Since these cells carry out only a particular function, they do it very efficiently. In human beings, muscle cells contract and relax to cause movement, nerve cells carry messages, blood flows to transport oxygen, food, hormones and waste material and so on. In plants, vascular tissues conduct food and water from one part of the plant to other parts. So, multi-cellular organisms show division of labour. Cells specialising in one function are often grouped together in the body. This means that a particular function is carried out by a cluster of cells at a definite place in the body. This cluster of cells, called a tissue, is arranged and designed so as to give the highest possible efficiency of function. Blood, phloem and muscle are all examples of tissues.

A group of cells that are similar in structure and/or work together to achieve a particu