MCQS of Biology 1st Year Chapter 5 Variety of Life

Biology 1st Year Chapter 5 Variety of Life

1. In which techniques we can describing naming and classifying living organisms on the basis of their similarities and dissimilarities
A.cytology
B.taxonomy
C.biochemistry
D.homology
correct answer is B

2.who proposed in 1969 that living organisms may be divide into five kingdom
A.whittikar
B.L.margulis
C.k.schwartz
D.none of above
correct answer is A

3.The word virus is derived from latin word meaning
A.to know
B.poison
C.venom
D.none of these
correct answer is B

4.Characteristically virus are
A.noncellular
B.can't reproduce outside of the cell
C.synthesis and gene replication
D.all are correct
correct answer is D

5.Who was discovered virus
A.robert brown
B.whittikar
C.ivanowsky
D.k.schwartz
correct answer is C

6.Which disease are caused by virus
A.yellow-fever
B.laprosy
C.dysentary
D.t.b
correct answer is A

7.Which branch of biology is considered as final main helping in classifying organisms
A.Homology
B.cytology
C.morphology
D.genetics
correct answer is D

8.The adhesion properties of virus
A.viral R.N.A they contain
B.protein that make up their coat and envelop
C.viral D.N.A they contain
D.viral genome that they contain
correct answer is B

9.Herps shingle and cancer poxes in human caused by
A.herps viruses
B.arbo viruses
C.rhinoviruses
D.none of above
correct answer is A

10.AIDS is caused by
A.intimate sexual contact
B.infected blood entering the blood stream
C.an infected pregnant women can pass on virus to her baby
D.all are correct
correct answer is D

11.Hepatitis is an inflammation of the
A.Lungs
B.liver
C.kidney
D.gall-bladder
correct answer is B

12.AIDS caused by
A.retro viruses
B.rhabdoviruses
C.paramyxoviruses
D.none of above
correct answer is A

13.Lytic cycle
A.replicate the viral genome without destroying host
B.temperate
C.kill the host cell
D.both a and c
correct answer is C

14.Genera are grouped into
A.phyla
B.classes
C.orders
D.Families
correct answer is D

MCQS of Biology 1st Year Chapter 4 The Cell

Biology MCQS Chapter 4 The cell

1.Which scientist discovered the spherical body nucleus
A.robert brown
B.robert hooke
C.david jansen
D.galileo
correct answer is A


2.All of the following statement is correct about cell theory axcept
A.all organism are composed one or more cell
B.cell can arise only the division of pre-existing cell
C.the cell is the structural and functional unit of life
D.the term cell was discovered by robert brown
correct answer is D


3.Cell theory was proposed by
A.robert hooke
B.robert brown
C.scheilden and schwan
D.Fischer
correct answer is C


4.Electron microscope is
A.in which visible light is use
B.in which short wave length is use
C.in which electron beam is use
D.none of these
correct answer is C


5.Eukaryotes are
A.those organism having a true nucleus
B.those organism which contain membrane bound organelles
C.those organism which do not contain nucleus
D.both a and b
correct answer is D


6.Plasma membrane are
A.protein bilayer
B.glycoprotein bilayer
C.phospholipid bilayer
D.none of above
correct answer is C


7.Fluid mosaic model was proposed by
A.singer and nicolson
B.paul filder
C.laveran
D.no one of them
correct answer is A


8.the following function of plasma membrane axcept
A.protection of cell cytoplasm
B.selective permeability
C.They are hydrophilc and hydrophobic in nature
D.they are called protein factory
correct answer is D


9.Cell wall is present in
A.animals
B.plants
C.bacteria
D.both b and c
correct answer is D


10.Which one control the activities of cell
A.cell
B.cytoplasm
C.nucleus
D.cell wall
correct answer is C


11.Energy is required for
A.diffusion
B.active transport
C.facillated transport
D.all of these
correct answer is B


12.Chromosomes with equal arm
A.metacentric
B.acrocentric
C.telocentric
D.sub-metacentric
correct answer is A


13.Lysosomes function in
A.protein synthesis
B.lipids synthesis
C.intracellular digestion
D.processing and packaging
correct answer is C


14.Which organelle the functions of processing packaging and distribution
A.goly apparatus
B.lysosomes
C.mitochondria
D.plastids
correct answer is A


15.All are the functions of mitochondria except
A.they are present in the cytoplasm
B.mitochondria are the center of aerobic respiration
C.mitochondria are double membrane bounding
D.it is not a power house of the cell
correct answer is D


16.Ribosomes are found in
A.rough endoplasmic reticulum
B.smooth endoplasmic reticulum
C.mitochondria
D.plastids
correct answer is A


17.Which disease called mental retardation blindness death by age
A.gaucher disease
B.tay-sachs disease
C.krabb's disease
D.neno of them
correct answer is B


18.Which one is the energy converting organelle
A.chromoplast
B.leucoplast
C.chloroplast
D.proplastids
correct answer is C


19.Characteristics  associated with peroxisome only
A.having single membrane
B.found only eukaryotic cells
C.contain enzymes for transferring H atoms to oxygen form hydrogen peroxide
D.none of above
correct answer is C


20.Ribosomes are manufactured in
A.nucluos
B.cytoplasm
C.plastids
D.nucleolus
correct answer is D


21.the protein present in microfilament
A.actin
B.myosin
C.keratin
D.tubulin
correct answer is B

MCQS of Biology 1st Year Chapter 3 Enzymes

Biology MCQS Chapter 3 Enzymes

1.The catalytic molecules called
A.cell
B.enzymes
C.atom
D.none of these
correct answer is B


2.All these reactions occur
A.low temperature and atmospheric pressure
B.high temperature and low atmospheric pressure
C.low temperature and atmospheric
D.low atmospheric and high temperature
correct answer is C


3.All enzymes are
A.co-factor in nature
B.glycoprotein in nature
C.protein in nature
D.non-protein in  nature
correct answer is C


4.Which one of the following scientist discovered that certain molecules of r
Ribonucleic  acid also function as enymes
A. thomas cech sidney altman
B. robber brown
C.fischer
D.koshland
correct answer is A


5.Which scientist proposed induce fix model
A.thomas cech
B.koshland
C.levran
D.fischer
correct answer is B


6.which one of the scientist said that a particular enzymes act on a particular substrate
A.thomas cech
B.sidney
C.paul filder and d.d woods
D.none of these
correct answer is C


7.The protein part of enzymes
A.apoenzyme
B.co-enzyme
C.acylglycerol
D.co-enzyme
correct answer is A


8.The holo-enzyme in which prosthetic group is inorganic ions are
A.co-enzymes
B.proteoenzymes
C.co-factor
D.apeoenzymes
correct answer is C


9.All of the following enzymes except
A.amylqase
B.trypsin
C.pepsin
D.mangenism
correct answer is D


10.Factor affecting on enzymes activity
A.temperature
B.p.H
C.radiation
D.all of these
correct answer is D


11.Most of the enzymes are highly active at
A.37
B.100
C.7
D.36
correct answer is A


12.p.H of pepsin in the stomach
A.1.2
B.1.5
C.1.4
D.1.7
correct answer is C


13.Which molecules to bind active site of an enzymes
A.Allosteric activaters
B.competitive inhibitor
C.Allosteric inhibitor
D.non competitive inhibitor
correct answer is B


14.Substrate which decrease the activity of an enzymes is called
A.inhibitors
B,activitors
C.co-enzymes
D.none of these
correct answer is A


15.Which one is not a property of enzymes
A.they are specific in their nature and their action
B.their molecules are much greater in size than substrate
C.they have particular site to react with the substrate called active site
D.they are non-protein in nature
correct answer is D


16.Nucleic acid which also serve as enzymes are
A.nucleoprotein
B.ribosomes
C.ribzyme
D.co-enzyme
correct answer is C

MCQS of Biology 1st Year Chapter 2 Biomolecules

Biology MCQS Chapter 2 Biomolecules

1.Cell contains a living material called
]A.cytoplasm
B.Protoplasm
C.Cytosol
D. none of these
correct answer is B


2.Carbon is use during
A.as use as reducing agent
B.as use in aerobic respiration
C.use as fix during photosynthesis
D.none of above
correct answer is C


3.Biomolecules can be divided into
A.4 groups
B.3 groups
C.2 groups
D.5 groups
correct answer is D


4.In mammalian cell constitute of protein
A.18%
B.70%
C.O.5%
D.3%
correct answer is A


5.In living cell the most abundant component is
A.water
B.nitrogen
C.oxygen
D.carbon
correct answer is A


6.Water has variety of properties except
A.Behave as best solvent
B.high heat of vaporization
C.adhesive force in molecules
D.slow to absorb and release heat
correct answer is C


7.Which one is tetravalent  in nature
A.nitrogen
B.carbon
C.silicon
D.chlorine
correct answer is B


8.Amino acid is building blocks of
A.Lipids
B.glucose
C.protein
D.glycerol
correct answer is C


9.Glycogen is found in all of the following except
A.liver
B.bacteria
C.muscles tissues
D.algae
correct answer is D


10.which one is insoluble in water and soluble in organic compound
A.lipids
B.cellulos
C.starch
D.glycogen
correct answer is A


11.which of the following statement is correct about saturated fats
A.they contains one or more double bond between carbon
B.they are liquid at ordinary tempreture
C.they do not contain any double bond between carbon
D. none of these
correct answer is C


12.D.N.A is found mainly in the
A.in the cytoplasm
B.plasma membrane
C.chromatin of the cell
D.nucleolus
correct answer is C


13.The carbon atoms in the steroid is
A.8
B.17
C.12
D.16
correct answer is B


14.fructose most abundant found in
A.milk
B.honey
C.fruit sugar
D.sugar cane
correct answer is C


15.The most important reserve food in higher plants is
A.starch
B.glycogen
C.lipids
D.protein
correct answer is A


16.carbohydrates combine with a protein molecules to form
A.nucleoprotein
B.lipoprotein
C.glycolipid
D.glycoprotein
correct answer is D


17.Nitrogenous base not present in R.N.A is
A.guanine
B.thymine
C.uracil
D.adenine
correct answer is B


18.Type of polynucleotide acting as messenger
A.mRNA
B.ATP
C.NAD
D.ADP
correct answer is A


19.Which of the following groups of lipid except
A.waxes
B.terpenoids
C.Acylglycerol
D.glycogen
correct answer is D


20.A process during which polymers are broken down into their subunits is called
A.condensation process
B.hydrolysis
C.reduction
D.none of above
correct answer is B

MCQS of Biology 1st Year Chapter 1 Introduction of Biology

Hi freinds here is some online biology Mcqs about 1st year Chapter 1 introduction of biology. i want to share my knowledge with you so here you can get benefits.

Introduction of Biology 

1.The study of living thing is

A.social biology

B.human biology

C.biology

D.fresh water biology

correct answer is C 

2.The study of organisms inhabiting the sea oceans and the physical and chemical characteristics of their environment is called

A.fresh water biology

B.marine biology

C.microbiology

D.human biology

correct answer is B

3.The study in which we deals with parasitic organisms their life cycle mode of transmission and interaction with their host

A.marine biology

B.molecular biology

C.parasitology

D.fresh water biology

correct answer is C

4.The study in which we deals with structure and the function of the molecules which form structure of the cell and its organelles  is called

A.molecular biology

B.microbiology

C.biotechnology

D.fresh water biology

correct answer is A

4.The study in which we deals with the use of the data and techniques of engineering and technology for the study and solution of problems concerning living organisms particularly the human is called

A.social biology

B.human biology

C.biotechnology

D.microbilogy

correct answer is C

5.The study in which we deals microorganisms (virus.bacteria.protozoans and pathogenic fungi) is called 

A.marine biology

B.microbiology

C.fresh water biology

D.parasitology

correct answer is B

6.Life emerges on the level of a

A.atoms

B.molecules

C.cell

D.organelles

correct answer is C

7.A community together with its non-living surroundings is called

A.species

B.population

C.community

D.ecosystem

correct answer is D

8.A group of similar cells that perform a  specific function is called

A.cell

B.tissue

C.organ

D.molecules

correct answer is B

9.A combination of atoms is called

A.tissue

B.cell

C.molecule

D.organ

correct answer is C

10.A group of very similar interbreeding organisms constitutes a

A.biosphere

B.ecosystem

C.population

D.species

correct answer is D

11.A tentative statement by scientist is called

A. observation

B.conclusion

C.hypothesis

D.theory

correct answer is C

12.vaccination was the first introduced by

A.Edward Jenner

B.florey

C.chain

D.j.j thomsan

correct answer is A

13.Malaria is caused by

A.virus

B.fungi

C.bacteria

D.plasmodium

correct answer is D

14.All of the following are natural cloning except

A.Identical twins

B.Tumor

C.Regenration

D.Dizygotic twins 

correct answer is D

15.It includes non-Chlorophyllus Multicellular (except yeast) organisms having chitinous cell wall Coenocytic body called Mycelium is called

A.kingdom Monera

B.kingdom fungi

C.kingdom plantae

D.kingdom animalia

correct answer is B 

16.Penicillin was discovered by

A.Robert brown

B.Fleming

C.Jenner

D.Laveran

correct answer is B

17.Hydroponics is the science of growing terrestrial plants in

A.lake

B.desert

C.aerated solution

D.labority

correct answer is C

18.Radiotherapy is the treatment of

A.T.b

B.small pox

C.cancer and tumor

D.leprosy

correct answer is C

19.Life arose in this world almost 

A.2 billion ago

B. 3 billion ago

C. 1.5 billion ago

D.1 billion ago

correct answer is C

20.The rates of infant mortality and morbidity have been greatly reduced by

A.Antibiotics

B.Immunization by vaccination

C.radiotherapy

D.Antibodies

correct answer is B.