Cytology MCQ: MCQ Test (50 questions)

Question 1 of 50

Nucleus was discovered by-

ARobert Brown
BLeeuwenhock
CRobbert Hooke
DSchleiden and Schwann

Question 2 of 50

Rigidity of cell wall is due to presence of-

ACellulose
BLignin
Ca and b both
DSuberin

Question 3 of 50

Which of the following is NOT a feature of Eukaryotic cell ?

ANucleus well organized
BMitochondria present
CChloroplast absent in plant cells
DNuclear membrane present

Question 4 of 50

Network of membranous irregular tubules found in cell cytoplasm is called-

AGolgibodies
BMitochondria
CRibosomes
DEndoplasmic reticulum

Question 5 of 50

Vacuole is covered by single membrane called-

APlasmalemma
BCell membrane
CTonoplast
DCell wall

Question 6 of 50

The longest cell in human body is-

ALiver cell
BMuscles cell
CNerve cell
DNone of these

Question 7 of 50

A substance which is more than 80% in the cell is-

AProtein
BFat
CMineral
DWater

Question 8 of 50

Electron microscope is in invented by-

AKnole & Ruska
Bschleiden & Schwann
CFleming & brown
DWatson & Crick

Question 9 of 50

A protein is synthesized in the endoplasmic reticulum bound ribosomes and it targets to the inner thylakoid space of chloroplast. How many double-layered membrane layers it has to pass to reach its destination ?

A2
B3
C4
D5

Question 10 of 50

Which among the following does not have a cell wall ?

AEuglena
BParamecium
CGonyaulax
DMycoplasma

Question 11 of 50

Infolding from the inner membrane of mitochondria is called-

ACristae
BCisternae
COxysomes
DMatrix

Question 12 of 50

The hydrophilic nature of DNA is due to the presence of-

Aa number of hydrogen bonds
Bphosphate group
Cdeoxyribose sugar
Dthymine base

Question 13 of 50

Chlorophyll in photosynthetic prokaryotic bacteria is associated with-

APlastids
BMembranous vesicles
CNucleoids
DChromosomes

Question 14 of 50

Number of mitochondria in bacterial cell is-

AOne
BTwo
CMany
DZero

Question 15 of 50

Cell theory is given by-n1. pasture 2. schleidenn3. Robert Hooke T SchwannnCode :4.

AOnly 2
B1 and 2
C2 and 3
D2 and 4

Question 16 of 50

Function of lysosome is-

AProtein synthesis
BProcessing and packaging
CIntracellular digestion
DSynthesis of fat

Question 17 of 50

Significance of mitosis cell division is-

AIncreasing cellular mass
BSwift division
COccur in every tissue of body
DProducing cell genetically similar to parent cell

Question 18 of 50

Both respiration and photosynthesis require-

ASun light
BChlorophyll
CGlucose
DCytochromes

Question 19 of 50

True nucleus is absent in-

ABacteria
BFungi
CAlgae
DLichens

Question 20 of 50

Site of protein synthesis in a cell is-

ALysosome
BRibosomes
CMitochondria
DGolgibodies

Question 21 of 50

In a living cell what is the site of ribosome formation ?

AGolgi bodies
BEndoplasmic reticulum
CPlasma membrane
DNucleolus

Question 22 of 50

Lysosome is formed from which of the following cell organelles ?

ANucleus
BEndoplasmic reticulum
CGolgi bodies
DRibosomes

Question 23 of 50

Chromosomes other than sex chromososomes are called :

AMicrosomes
BAllosomes
CIsochromosomes
DAutosomes

Question 24 of 50

Mitochondrial cristae are site of-

ABreakdown of macromolecules
BProtein synthesis
CPhosphorylation of flavoprotein
DOxidation-reduction reaction

Question 25 of 50

Two strand of DNA held together by-

ANitrogen bond
BHydrogrn bond
CCarbon bond
DOxygen bond

Question 26 of 50

Which of the following structure is present in mitochondria

AQuantasomes
BOxysomes
CPolysomes
DDictyosomes

Question 27 of 50

Gustation refers to the sense of which of the following ?

ASmell
BHearing
CTactile
DTaste

Question 28 of 50

Which of the following cell organelles play the most significant role in protein synthesis-

ALysosome and centrosome
BEndoplasmic reticulum and ribosome
CGolgi apparatus and mitochondria
DLysosome and mitochondria

Question 29 of 50

Nucleolus takes part in synthesis of-

Ar RNA
Bt RNA
Cm RNA
DDNA

Question 30 of 50

Which of the following features of DNA make if uniquely suited to store and transmit genetic information from generation to generation ?

AComplementary of the two strand
BDouble helix
CNumber of base pairs per turn
DSugar phosphate backbone

Question 31 of 50

Which of the following cell organelles is not lined by membrane ?

ALysosome
BRibosome
CNucleus
DGolgi apparatus

Question 32 of 50

The enzyme found in lysosome is-

ACell sap
BCytoplasm
CNucleoplasm
DHydrolytic enzyme

Question 33 of 50

Chromosomes are made up of :

ADNA
BProtein
CDNA and Protein
DRNA

Question 34 of 50

Which one of the following is the smallest unit showing the properties of life such as capacity for metabolism, for response to the environment, growth and reproduction ?

AGene
BChromosome
CNucleus
DCell

Question 35 of 50

Energy currency of cell for cellular process-

AAMP
BATP
CRNA
DDNA

Question 36 of 50

Centriole take part in-

ANucleolus formation
BStart of cell division
CCell plate formation
DSpindle formation

Question 37 of 50

Cell wall is-

AOpermeable
BSemipermeable
CSelective permeable
DNon permeable

Question 38 of 50

All life forms contain 'molecules of life'. These are-

ACarbohydrates
BProteins
CNucleic
DAll of these

Question 39 of 50

Attractive colour of flower and seed is due to-

ALeucoplast
BChromoplast
CChloroplast
DTonoplast

Question 40 of 50

As compared to mitosis meosis has-

AExchange of chromatid segments
BNo telophase
CDaughter cells similar to parent cells
DDuplication chromosomes occurs during anaphase

Question 41 of 50

Which organelles in the cell, other than nucleus contains DNA ?

ACentriole
BGolgi apparatus
CLysosomes
DMitochondia

Question 42 of 50

Mitochondria are able to produce their own

ANucleus
BProteins
CChloroplasts
DDigestive enzymes

Question 43 of 50

Prokyarytic Ribosomes are-

A80 s
B70 s
C60 s
D50 s

Question 44 of 50

Molecular and cellular research centre is situated in-

AMumbai
BKolkata
CBanglore
DHyderabad

Question 45 of 50

Assertion (A) : Scientists can cut apart and paste together DNA molecules at will, regardless of the source of molecules.nReason (R) : DNA fragments can be mainpulated using restriction endonucleases and DNA ligases.

ABoth A and R are true and R is the correct explanation of A
BBoth A and R are true, but R is not a correct explanation of A
CA is true, but R is false
DA is false, but R is true

Question 46 of 50

Enzymes are-

AProteins
BLipids
CSteroids
DCarbohydrates

Question 47 of 50

Green colour of leaves is due to-

AChromoplast
BLeucoplast
CChloroplast
DTonoplast

Question 48 of 50

The outermost covering of plant cell is-

ACell membrane
BCell wall
CTonoplast
DEndoplasmic reticulum

Question 49 of 50

In a mammalian cell, the protein is synthesized by-

ARibosome
BGolgi
CLysosome
DSmooth endoplasmic reticulum

Question 50 of 50

Sucidal bag of cell is-

ALysosomes
BRibosomes
CNucleosomes
DGolgibodies