CELLS

WinmeenAugust 29, 2018

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Unit – II CELLS - BIOLOGY

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Question 1

The Power house of the cell is the ……………..

A	Chloroplast
B	nucleus
C	mitochondrion
D	lysosome

Question 2

The organelle that destroys worn-out cells is the…………..

A	centrosome
B	vacuole
C	lysosome
D	chromosome

Question 3

The cell division common in gametes.

A	mitosis
B	amitosis
C	meiosis
D	both mitosis and meiosis

Question 4

Substance taken up in fluid form

A	Phagocytosis
B	exocytosis
C	recepoter-mediated endocytosis
D	pinocytosis

Question 5

……………… are embedded on the rough endoplasmic reticulum

A	Ribosomes
B	Lysosomes
C	Centrosomes
D	Mesosomes

Question 6

The plant cell does not have a………………..

A	cell wall
B	vacuole
C	Centriole
D	Chloroplast

Question 7

……………… is a prokaryote.

A	amoeba
B	Bacteria
C	Yeast
D	Fungus

Question 8

……………….. are non-living components of the cell

A	Lysosomes
B	Vacuoles
C	Nuclei
D	Golgi bodies

Question 9

Petals of flowers bear…………..

A	chloroplastes
B	leucoplasts
C	chromoplates
D	amyloplasts

Question 10

Cells which lack a well organized nucleus.

A	Plant cells
B	animal cells
C	Prokaryotic cells
D	Eukaryotic cells

Question 11

Cell was discovered by ………………

A	Robert Hooke
B	Robert Brown
C	Anton Van Leeuwenhoek
D	Robert brown

Question 12

Golgi apparatus is referred to as………….

A	protein factories
B	dictyosomes
C	suicidal bags
D	power houses

Question 13

Prokaryotes such as bacteria have …………..ribosomes.

A	80S
B	40S
C	70S
D	60S

Question 14

…………… are colourless plastids.

A	chromoplasts
B	chloroplasts
C	leucoplasts
D	chlorophyll

Question 15

Lysosomes are called …………..

A	power houses of the cell
B	suicidal bags
C	dictysomes
D	protein factories

Question 16

Protein factories of the cell are……………

A	oxysomes
B	centrosomes
C	lysosomes
D	ribosomes

Question 17

Power houses of the cell

A	glogi complex
B	lysosomes
C	mitochondria
D	ribosomes

Question 18

The centromere lies in the middle of the chromosome and the two arms are equal in length in …………… chromosome.

A	metacentric
B	submetacentric
C	acrocentric
D	telocentric

Question 19

Match the following

Sl.No	Organelle	Function
1	Mitochondria	a) suicidal bags
2	Lysosome	b) protein Synthesis
3	Ribosome	c) Power House of the cell
4	Smooth ER	d) Cell secretion
5	Golgi complex	e) Synthesis of hormones and lipids

A	1 4 3 2 5
B	5 1 3 2 4
C	2 3 1 5 4
D	4 5 1 3 2

Question 20

Match the following

Metacentric a) one arm
Submetacentic b) rod shaped
Acrocentric c) V- shaped
Telocentric d) J – shaped

A	2 4 1 3
B	3 1 2 4
C	4 3 1 2
D	1 4 3 2

Question 21

Match the following

A	4 3 1 2
B	1 4 3 2
C	3 4 1 2
D	3 1 2 4

Question 22

Assertion (A) : Plasma membrane is semi-permeable. Reason (R) : Plasma membrane regulates the entry and exit of substance in and out of the cell.

A	A is correct R is wrong
B	Both A and R are wrong
C	A is correct R explains A
D	R does not explain A

Question 23

Assertion (A) : Cell wall is present in animal cells
Reason (R) : Cell organelles are present in the cytoplasm.

A	A is correct R is wrong
B	A is correct R explains A
C	Both A and R are wrong
D	A is wrong R is correct

Question 24

Assertion (A) : Acrocentric chromosome has one very short arm and one very long arm.
Reason (R) : Telocentric chromosome has only one arm

A	A is correct R is wrong
B	A is wrong R is correct
C	A is correct R does not explain A
D	R explains A

Question 25

Assertion (A) : Golgi apparatus is involved in the synthesis of lysosomes.
Reason (R) : Golgi apparatus was discovered by Watson and crick.

A	A is wrong R is correct
B	R explains A
C	Both A and R are wrong
D	A is correct R is wrong

Question 26

Assertion (A) : Smooth endoplasmic reticulum is involved in the synthesis of lipids

Reason (R) : Rough endoplasmic reticulum is involved in the synthesis of proteins

A	A and R are right
B	R is right A is wrong
C	R explains A
D	A is right R is wrong

Question 27

Synthesis of proteins is the function of ……………. (Rough ER, Smooth ER)

Rough ER

Question 28

…………….. Ribosome is seen in prokaryotic cells

A	70S
B	80S

Question 29

………… play an important role in respiration

A	Oxysomes
B	lysosomes

Question 30

………….. provide colour to flowers and fruits

A	leucoplasts
B	Chromoplates

Question 31

Thymine and cytosine are ………………

A	Purines
B	pyrimidines

Question 32

The division of nucleus is called ………….

A	Karyokinesis
B	cytokinesis

Question 33