Multiple Choice Questions
THE FUNDAMENTAL UNIT OF LIFE
Practice Questions with Answers
Total 65 questions available
Q. 1
The nucleus contains __________, which are visible as rod-shaped structures only when the cell is about to divide.
A
CytoplasmB
ProteinsC
GenesD
ChromosomesClick an option to check your answer
Q. 2
Which of the following imparts colors to flower to attract insects for pollination?
A
PlastidB
ChloroplastC
LeucoplastD
ChromoplastClick an option to check your answer
Q. 3
The passage of water from a region of higher water concentration through a semi-permeable membrane to region of low water concentration is
A
DiffusionB
OsmosisC
Both a and bD
None of theseClick an option to check your answer
Q. 4
Engulfing of food materials or foreign bodies by cells like Amoeba is called
A
PlasmolysisB
OsmosisC
DiffusionD
EndocytosisClick an option to check your answer
Q. 5
The endoplasmic reticulum (ER) membrane is similar in structure to the ______ membrane.
A
NuclearB
CellC
PlasmaD
RibosomalClick an option to check your answer
Q. 6
Choose the correctly matched pair.
A
Smooth Endoplasmic Reticulum - Protein SynthesisB
Golgi Apparatus - Formation of LysosomesC
Lysosomes - PhotosynthesisD
Mitochondrion - Detoxification of DrugsClick an option to check your answer
Q. 7
A cell will swell up if
A
The concentration of water molecules in surrounding medium is higher than water molecules concentration in the cell.B
The concentration of water molecules is the same in the cell and in the surrounding medium.C
The concentration of water molecules in the cell is higher than the concentration of water molecules in surrounding medium.D
Concentration of water molecules does not matter.Click an option to check your answer
Q. 8
Which of the following is rightly paired?
A
Acrocentric: centromere is at the centreB
Metacentric: centromere at the middleC
Both (a) and (b)D
None of theseClick an option to check your answer
Q. 9
What is the outermost covering of a cell that regulates the entry and exit of materials known as?
A
NucleusB
CytoplasmC
Cell wallD
Plasma membraneClick an option to check your answer
Q. 10
Cellular organelles containing hydrolytic enzymes are called:
A
RibosomesB
MesosomesC
PeroxisomesD
LysosomesClick an option to check your answer
Q. 11
What is the full form of ATP?
A
Adeno tri phosphateB
Adenosine tri phosphateC
Adenosine tetra phosphateD
Adeno tri phosphorusClick an option to check your answer
Q. 12
Living cells were discovered by
A
Robert HookeB
LeeuwenhoekC
Robert BrownD
PurkinjeClick an option to check your answer
Q. 13
Which organelle is called the powerhouse of the cell?
A
PlastidsB
MitochondriaC
Golgi apparatusD
RibosomesClick an option to check your answer
Q. 14
Nucleoid is a feature of:
A
BacteriaB
HumansC
BirdsD
AmoebaClick an option to check your answer
Q. 15
Which is the control centre of the cell?
A
CytoplasmB
Cell membraneC
NucleusD
ProtoplasmClick an option to check your answer
Q. 16
Which of the following is known as “physical basis of life”?
A
ProtoplasmB
NucleolusC
MitochondriaD
GeneClick an option to check your answer
Q. 17
Which of the following organelles is smallest in size?
A
RibosomeB
MitochondrialC
ChloroplastD
LysosomeClick an option to check your answer
Q. 18
Anaerobic bacteria which help in nonsymbiotic nitrogen fixation is
A
AzotobacterB
ChlorobiumC
AzomonasD
ClostridiumClick an option to check your answer
Q. 19
What is the primary function of leucoplasts in a cell?
A
Waste removalB
StorageC
PhotosynthesisD
Energy productionClick an option to check your answer
Q. 20
What is the main function of the cytoplasm in a cell?
A
To provide structure and supportB
To store genetic materialC
To house organelles and facilitate cellular processesD
To protect the cell from external damageClick an option to check your answer
Q. 21
The cell organelles (other than the nucleus) which contain DNA are
A
Plastids and LysosomesB
Golgi apparatus and LysosomesC
Plastids and MitochondriaD
Mitochondria and Golgi apparatusClick an option to check your answer
Q. 22
The term protoplasm was coined by
A
Kholl and RuskaB
Robert HookeC
J. E. PurkinjeD
HaeckelClick an option to check your answer
Q. 23
Which of the following statements about vacuoles is correct?
A
Vacuoles are only found in plant cellsB
The central vacuole in some plant cells can occupy 50-90% of the cell volumeC
Plant cells generally have smaller vacuolesD
Vacuoles are large and centrally located in animal cellsClick an option to check your answer
Q. 24
Animal cell lacking nuclei would also lack in
A
ChromosomeB
Endoplasmic reticulumC
LysosomeD
RibosomeClick an option to check your answer
Q. 25
What is the consequence of a ruptured plasma membrane for a cell?
A
The cell will continue to function normally.B
The cell will lose its contents and eventually die.C
The cell will rapidly produce new membrane materials.D
The cell will become more efficient in nutrient absorption.Click an option to check your answer
Q. 26
The fluid in the vacuole of a plant cell is called
A
CytoplasmB
TonoplasmC
Cell sapD
ProtoplasmClick an option to check your answer
Q. 27
Ribosomes are the center for
A
PhotosynthesisB
Fat synthesisC
Protein synthesisD
RespirationClick an option to check your answer
Q. 28
A cell has 10 chromosomes. After mitosis cell divisions, the number of chromosomes in the daughter cell will be
A
20B
5C
4D
10Click an option to check your answer
Q. 29
A prokaryotic cell ranges in size from:
A
1-10 nanometreB
5-100 nanometreC
1-10 micrometreD
5-100 micrometreClick an option to check your answer
Q. 30
If a plant cell is kept in a hypotonic solution, it will
A
BurstB
Decrease in its volumeC
Increase in its volumeD
Maintain the same volumeClick an option to check your answer
Q. 31
Prokaryotic cell contains:
A
Variable number of chromosomesB
Two chromosomesC
Single chromosomeD
Three chromosomesClick an option to check your answer
Q. 32
Which of the following substances is not present in the cell?
A
CarbohydratesB
SoilC
WaterD
ProteinsClick an option to check your answer
Q. 33
Animal cells do not show the presence of:
A
Cell membraneB
CytoplasmC
Cell wallD
NucleusClick an option to check your answer
Q. 34
Which of the following acts as the garbage disposal system of the cell?
A
Golgi bodyB
VacuoleC
LysosomeD
PeroxisomeClick an option to check your answer
Q. 35
Root hair absorbs water from soil through
A
Active transportB
OsmosisC
EndocytosisD
DiffusionClick an option to check your answer
Q. 36
Which term describes the entire content of a living cell?
A
ProtoplasmB
NucleoplasmC
OoplasmD
CytoplasmClick an option to check your answer
Q. 37
The largest cell in the human body is
A
Liver cellB
Nerve cellC
Muscle cellD
OvumClick an option to check your answer
Q. 38
The only cell organelle present in a prokaryotic cell is
A
LysosomeB
PlastidsC
MitochondriaD
RibosomeClick an option to check your answer
Q. 39
Following are a few definitions of osmosis. Read carefully and select the correct definition.
A
Movement of solvent molecules from higher concentration to lower concentration of solution through a permeable membraneB
Movement of solvent molecules from its higher concentration to lower concentrationC
Movement of solute molecules from lower concentration to higher concentration of solution through a semipermeable membraneD
Movement of water molecules from a region of higher concentration to a region of lower concentration through a semi permeable membraneClick an option to check your answer
Q. 40
The proteins and lipids, essential for building the cell membrane, are manufactured by
A
Endoplasmic reticulumB
Plasma membraneC
Golgi apparatusD
MitochondriaClick an option to check your answer
Q. 41
Find out the correct sentence.
A
Nucleoid is present inside the nucleoplasm of eukaryotic nucleusB
Rough endoplasmic reticulum and smooth endoplasmic reticulum produce lipid and protein respectivelyC
Enzymes packed in lysosomes are made through RERD
Endoplasmic reticulum is related to the destruction of plasma membraneClick an option to check your answer
Q. 42
Choose the correctly matched pair.
A
Prokaryotic Cell - Membrane-bound organellesB
Eukaryotic Cell - Nuclear region not well definedC
Prokaryotic Cell - Nuclear region not well definedD
Eukaryotic Cell - Single chromosomeClick an option to check your answer
Q. 43
Choose the correctly matched pair.
A
Meiosis - Two new cellsB
Golgi apparatus - Storage and packaging of substancesC
Nucleus - Manufacture of proteinsD
Mitosis - Four new cellsClick an option to check your answer
Q. 44
Which statement is false with respect to multi-cellular organisms?
A
Multicellular organisms show division of labour.B
In multicellular organisms, groups of cells perform specific roles.C
Different groups of cells are inter-dependent on each other.D
All the cells perform the same function in a multicellular organism.Click an option to check your answer
Q. 45
Choose the correctly matched pair.
A
Hypotonic solution - Cell shrinksB
Diffusion - Movement of water moleculesC
Hypertonic solution - Cell swells upD
Isotonic solution - No net movement of waterClick an option to check your answer
Q. 46
Which organelle is called the suicide bag of the cell?
A
Golgi bodiesB
LysosomeC
CentrosomeD
ChloroplastClick an option to check your answer
Q. 47
Cell wall is mainly made up of:
A
SucroseB
CelluloseC
MaltoseD
FructoseClick an option to check your answer
Q. 48
Find the incorrect statement regarding cell organelles:
A
The organelles help in division of labour in the cell.B
Cell organelles are present outside each cell.C
A cell functions because of its organelles.D
Each kind of cell organelle performs a special function.Click an option to check your answer
Q. 49
Functional segments of DNA are called
A
StomataB
Muscle cellC
Nerve cellD
GenesClick an option to check your answer
Q. 50
What did Robert Hooke observe in 1665 that led to the discovery of cells?
A
Cork resembled the structure of a honeycomb.B
The nucleus was discovered within a cell.C
Pond water contained free-living cells.D
Protoplasm was named for the fluid substance of the cell.Click an option to check your answer
Q. 51
What is the primary function of mitochondria in a cell?
A
Protein synthesisB
Energy storageC
ATP generationD
Waste disposalClick an option to check your answer
Q. 52
An eukaryotic cell ranges in size from:
A
5-100 nanometreB
1-10 micrometreC
5-100 micrometreD
1-10 nanometreClick an option to check your answer
Q. 53
Which out of the following is not a function of the vacuole?
A
Waste excretionB
Providing turgidity and rigidity to the cellC
LocomotionD
StorageClick an option to check your answer
Q. 54
Prokaryotic cells do not have:
A
NucleoidB
LysosomesC
Plasma membraneD
RibosomeClick an option to check your answer
Q. 55
“All cells arise from pre-existing cells” who said this?
A
PurkinjeB
Robert BrownC
Robert HookeD
VirchowClick an option to check your answer
Q. 56
70-80 % of volume of a mature plant cell is occupied by
A
NucleusB
Endoplasmic reticulumC
CytoplasmD
VacuoleClick an option to check your answer
Q. 57
What is the process called when a plant cell loses water through osmosis and the cell contents shrink away from the cell wall?
A
DiffusionB
ExocytosisC
EndocytosisD
PlasmolysisClick an option to check your answer
Q. 58
The membrane of Golgi apparatus has connections with those of
A
Nuclear membraneB
Endoplasmic reticulumC
MitochondriaD
Cell membraneClick an option to check your answer
Q. 59
The presence of various cell organelles within the cell helps in:
A
Division of labourB
Crowding of the cellC
Larger size of the cellD
Decoration of the cellClick an option to check your answer
Q. 60
Cells are enclosed by a plasma membrane composed of _____ and proteins.
A
CarbohydratesB
Nucleic acidsC
LipidsD
EnzymesClick an option to check your answer
Q. 61
A prokaryotic cell does not possess
A
Cell membraneB
Cell wallC
Nuclear membraneD
Both (a) and (c)Click an option to check your answer
Q. 62
Which organelle releases energy?
A
RibosomeB
ChloroplastC
MitochondriaD
Golgi ApparatusClick an option to check your answer
Q. 63
Chromosomes are made up of
A
RNA and HistoneB
DNA and HistoneC
ProteinD
DNA and RNAClick an option to check your answer
Q. 64
What is the function of lysosomes within a cell?
A
PhotosynthesisB
Energy productionC
Digestion of waste materialsD
Protein synthesisClick an option to check your answer
Q. 65
Choose the correctly matched pair.
A
Functional segments of DNA - GenesB
Nucleoid - Well-defined nuclear regionC
Chromatin material - Visible as rod-shaped structuresD
Prokaryotes - Cells with membrane-bound organellesClick an option to check your answer
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