Question

TEST YOURSELF
1. Fill in the missing words:
The outer boundary of a cell is called the and it is
permeable.
(6) All the living substance in a cell except the nucleus is called
(H) Nucleus contains rod-shaped
These are made of a chemical called
w) Plasma membrane is made up of and
(V) In plants, cell wall is mainly composed of
(vi) Nucleus was discovered by
(vii) Ribosomes are rich in
and
(viii) RNA stands for
[x) Colourless plastids are called
(x) Ribosomes are the sites of synthesis
2. Mark the following statements as True (T) or False (F) :
(1) Cytoplasm and nucleus together constitute protoplasm.
(u) Plasma membrane is present in all cells.
(11) Plasma membrane is made up of cellulose.
(iv) Cell wall is a semi-permeable membrane.
(v) Genes are mainly made up of proteins.
(vi) Centrioles are associated with spindle formation.
(vil) Animal cells have larger vacuoles.
(vii) Lysosomes are the sites of protein synthesis.
3. Match the items in Column A with those in Column B :
:
Column A
(1) Nucleus
() Chloroplast
() Lysosome
(lv) Golgi apparatus
(V) Mitochondria
Column B
(a) ATP production
(b) Digestive enzymes
(c) Kitchen of the cell
(d) Contains genetic material
(e) Secretary organelle

Answer 1

Answer:

1. cell wall

6. cytoplasm

Answer 2

Answer:

1) The outer boundary of a cell is called the cell wall and it is semi permeable.

2) All the living substance in a cell except the nucleus is called cytoplasm.

4) Plasma membrane is made up of phospholipids and in plants cell wall is mainly composed of cellulose.

5) Nucleus was discovered by Robert Brown.

7) RNA stands for Ribonucleic acid.

8) Colorless plastids are called leucoplasts.

9) Ribosomes are the sites of protein synthesis.

Step-by-step explanation:

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