Cell The Unit of Life Test

Question 1
1 / -0

Ribosomes are particles about 200 $$\mathring{A}$$ units in diameter consisting of protein and RNA. The percentage of protein and RNA is respectively

A
$$80\%$$ and $$20\%$$

B
$$60\%$$ and $$40\%$$

C
$$50\%$$ and $$50\%$$

D
$$40\%$$ and $$60\%$$

Question 2
1 / -0

Match the storage products listed in Column-I with the organisms given under Column-II; choose the appropriate option from the given choices.
Column-I Column-II
$$A$$. Glycogen $$p$$. Sargassum
$$B$$. Pyrenoids $$q$$. Nostoc
$$C$$. Laminarin and mannitol $$r$$. Polysiphonia
$$D$$. Floridean starch $$s$$. Spirogyra
$$t$$. Agaricus

A
A -r, B- s, C- p, D- t

B
A- s, B- r, C- t, D- q

C
A- t, B- s, C- p, D- r

D
A- q, B- p, C- s, D- r

Question 3
1 / -0

Abhi conducted an experiment to investigate what would happen when different cell organelles of a balsam plant leaf are removed. The results are recorded in the table given.
Cell parts Out comes
P The cell cannot function properly.
Q Iodine solution remains yellowish brown.
R The cell cannot control the entry and exit of the substances.
S The cell loses its regular shape
Identify the cell parts P, Q, R and S.

(P) (Q) (R) (S)
(A) Nucleus Chloroplast Cell wall Cytoplasm
(B) Cytoplasm Chloroplast Nucleus Cell membrane
(C) Nucleus Chloroplast Cell membrane Cell wall
(D) Nucleus Chloroplast Cell wall Cell membrane

A
A

B
B

C
C

D
D

Question 4
1 / -0

The structure of E.coli chromosomal DNA is

A
Double stranded, right handed and circular

B
Single stranded, right handed and circular

C
Double stranded, left handed and linear

D
Double stranded, left handed and circular

Question 5
1 / -0

All are membrane bound cell organelles except

A
Mitochondria

B
Lysosomes

C
Spherosomes

D
Ribosomes

Question 6
1 / -0

Which of the following sequences represent a possible pathway in the production of a secretory protein?

A
Rough ER $$\rightarrow$$ Secretory vesicle $$\rightarrow$$ Ribosome $$\rightarrow$$ Golgi apparatus

B
Ribosome $$\rightarrow$$ Rough ER $$\rightarrow$$ Golgi apparatus $$\rightarrow$$ Secretory vesicle

C
Secretory vesicle $$\rightarrow$$ Golgi apparatus $$\rightarrow$$ Ribosomes $$\rightarrow$$ Rough ER

D
Rough ER $$\rightarrow$$ Ribosomes $$\rightarrow$$ Secretory vesicles $$\rightarrow$$ Golgi apparatus

Question 7
1 / -0

Prokaryotic cells are characterised by

A
A distinct nuclear membrane

B
Distinct chromosomes

C
Absence of chromatin material

D
Absence of nuclear membrane

Question 8
1 / -0

How many different types of RNA polymerases are involved in synthesis of all rRNA of $$80s$$ ribosome?

A
Four

B
Three

C
Two

D
One

Question 9
1 / -0

Which of these is wrongly matched?

A
70 S ribosomes-Prokaryotes

B
80 S ribosomes-Eukaryotes

C
Axoneme-Cilia

D
Centromere-Centrosome

E
Thylakoids-Chloroplast.

Question 10
1 / -0

Which of the following organelles is common to plant and animal cells?

A
Centrioles

B
Mitochondria

C
Tonoplast

D
Chloroplasts

Submit Test

Column-I	Column-II
$$A$$. Glycogen	$$p$$. Sargassum
$$B$$. Pyrenoids	$$q$$. Nostoc
$$C$$. Laminarin and mannitol	$$r$$. Polysiphonia
$$D$$. Floridean starch	$$s$$. Spirogyra
	$$t$$. Agaricus

Cell parts	Out comes
P	The cell cannot function properly.
Q	Iodine solution remains yellowish brown.
R	The cell cannot control the entry and exit of the substances.
S	The cell loses its regular shape

	(P)	(Q)	(R)	(S)
(A)	Nucleus	Chloroplast	Cell wall	Cytoplasm
(B)	Cytoplasm	Chloroplast	Nucleus	Cell membrane
(C)	Nucleus	Chloroplast	Cell membrane	Cell wall
(D)	Nucleus	Chloroplast	Cell wall	Cell membrane

Cell The Unit o...

Question 1

$$80\%$$ and $$20\%$$

$$60\%$$ and $$40\%$$

$$50\%$$ and $$50\%$$

$$40\%$$ and $$60\%$$

Question 2

A -r, B- s, C- p, D- t

A- s, B- r, C- t, D- q

A- t, B- s, C- p, D- r

A- q, B- p, C- s, D- r

Question 3

A

B

C

D

Question 4

Double stranded, right handed and circular

Single stranded, right handed and circular

Double stranded, left handed and linear

Double stranded, left handed and circular

Question 5

Mitochondria

Lysosomes

Spherosomes

Ribosomes

Question 6

Rough ER $$\rightarrow$$ Secretory vesicle $$\rightarrow$$ Ribosome $$\rightarrow$$ Golgi apparatus

Ribosome $$\rightarrow$$ Rough ER $$\rightarrow$$ Golgi apparatus $$\rightarrow$$ Secretory vesicle

Secretory vesicle $$\rightarrow$$ Golgi apparatus $$\rightarrow$$ Ribosomes $$\rightarrow$$ Rough ER

Rough ER $$\rightarrow$$ Ribosomes $$\rightarrow$$ Secretory vesicles $$\rightarrow$$ Golgi apparatus

Question 7

A distinct nuclear membrane

Distinct chromosomes

Absence of chromatin material

Absence of nuclear membrane

Question 8

Four

Three

Two

One

Question 9

70 S ribosomes-Prokaryotes

80 S ribosomes-Eukaryotes

Axoneme-Cilia

Centromere-Centrosome

Thylakoids-Chloroplast.

Question 10

Centrioles

Mitochondria

Tonoplast

Chloroplasts

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Question Analysis

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