The structural and functional unit of life called cell was discovered by

1

(a)

Robert Boyle

(b)

Charles Darwin

(c)

Robert Koch

(d)

Robert Hooke

Out of the following, which animal is unicellular?

1

(a)

Amoeba

(b)

Paramecium

(c)

Bacteria

(d)

All of these

Which of the following is not a plastid?

1

(a)

Chloroplast

(b)

Chromoplast

(c)

Leucoplast

(d)

Ribosome

Cheek cells do not have

1

(a)

cell membrane

(b)

Golgi apparatus

(c)

nucleus

(d)

plastid

The thread-like structures present in the nucleus are :

1

(a)

nucleolus

(b)

genes

(c)

chromosomes

(d)

ribosomes

...............is a unicellular aquatic animal.

1

(a)

Amoeba

.............is called kitchen of the cell.

1

(a)

Chloroplast

Cell was discovered in..................

1

(a)

1665

All organisms are made of small parts called____________

1

(a)

organs

Green plastids containing chlorophyll are called --------

1

(a)

chloroplast

Plasma membrane is dead.

1

(a) True

(b) False

Vacuoles present in animal cells are small.

1

(a) False

(b) True

Human cell is an eukaryotic cell.

1

(a) False

(b) True

Plastids are present in animal cells

1

(a) True

(b) False

The basic living unit of an organism is an organ.

1

(a) True

(b) False

A single-celled animal

1

(a)

What are the basic components of a cell?

1

(a)

The basic components of cell are :
(i) The cell membrane
(ii) Cytoplasm
(iii) Nucleus

Various components are present in cytoplasm.Name them

1

(a)

They are mitochondria, golgi bodies, ribosomes, vacuoles etc

Make a sketch of the human nerve cell. What function do nerve cells perform?.

2

(a)

State the difference between eukaryotes and prokaryotes.

2

(a)

Name the outermost layer of a cell in cat.

2

(a)

'A particular term called protoplasm is used for the living content of the cell'. Who coined this term?

2

(a)

‘Cells are the basic structural units of living organisms’. Explain.

3

(a)

Observe the following figure given below

Answer the following questions.
(a) Does it represent a plant cell or an animal cell?
(b) Does it represent a prokaryotic cell or a eukaryotic cell?

3

(a)

Label the parts A to E in the given figure

3

(a)

Describe the various parts of a cell.

5

(a)