Question

Read the following and answer the questions from 8 to 12:

The higher plants have multicellular bodies made up of various kinds of cells. These cells cluster together to perform specific functions. These groups of cells are called tissues. The plant tissues may primarily be classified into two groups: meristematic tissues and permanent tissues. The permanent tissues originate from meristematic tissues and become permanent at fixed positions in the plant body. They may be living or dead, simple or complex.


Q- Which of the following simple permanent tissues are dead?
In aquatic plants large air cavities are present in the ground tissues that store gases. These tissues are:

storage parenchyma

aerenchyma

chlorenchyma

none of these
10This simple permanent tissue constitute the major vegetative ground tissues.

parenchyma

collenchyma

sclerenchyma

all of these
11Sclerenchyma tissue become strong, rigid and impermeable to water due to the uniform deposition of:

cellulose

calcium pectate

pectin

lignin
12Which of the following tissues provide flexibility to soft aerial parts of a plant so that they can bend.

collenchyma

sclerenchyma

collenchyma

parenchyma

Answer 1

Answer:

Answer:Sclerenchyma is the dead mechanical tissue in plants. They are made up of long and narrow cells. These cells contain a cell wall that consists of lignin.