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Chapter 6 Tissues Solutions

Question - 1 : -
What is a tissue?

Answer - 1 : -

A tissue may be defined as a group or collection of similar or dissimilar cells that perform dr help to perform a common function and have common orgin.

Question - 2 : -
What is the utility of tissues in multicellular organism?

Answer - 2 : -

The utility of tissues in multicellular organism is given below:

  1. Division of labour: Tissues bring about division of labour in multicellular organ-isms. It increases efficiency.
  2. Higher organisation: Tissues become organised to form organs and organ systems.
  3. Individual cells: Work load of individual cells has decreased.
  4. Higher survival: Because of division of labour, higher efficiency,and organisation, the multicellular organisms have high survival.

Question - 3 : -
Name the types of simple tissues.

Answer - 3 : -

There are three types of simple tissues. These are parenchyma, collenchyma and sclerenchyma.

Question - 4 : -
Where is apical meristem found?

Answer - 4 : -

Apical meristem occurs at root and stem tips.

Question - 5 : -
Which tissue makes up the husk of coconut?

Answer - 5 : -

Sclerenchyma (fibres) makes up the husk of coconut.

Question - 6 : -
What are the constituents of the phloem?

Answer - 6 : -

The constituents of the phloem are sieve tubes, companion cells, phloem parenchyma and phloem fibres.

Question - 7 : -
What are the functions of areolar tissue?

Answer - 7 : -

Areolar tissue fills the space inside the organs, supports internal organs and helps in repair of tissues. It binds the skin with underlying parts.

Question - 8 : - Name the tissue responsible for movement in our body.

Answer - 8 : -

Muscular and skeletal tissue are responsible for movement in our body.

Question - 9 : -
What does a neuron look like?

Answer - 9 : -

Neuron is a thread or hair like structure, with palm leaf shaped structure at one end.

Question - 10 : -
Give three features of cardiac muscle.

Answer - 10 : -

The three features of cardiac muscle are given below:

  1. Cardiac muscles show morphological characteristics of both striated and unstriated muscles.
  2. Intercalated discs are present in the cardiac muscle fibres.
  3. The muscles show rhythmic contractions, without fatigue.

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