Biology Online Quiz Test 01

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Biology Online Quizzes

Biology Quiz Test 01 test contains multiple-choice questions with answers for competitive exam preparation. We have provided Biology online quizzes below which include questions related to different topics.

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Biology Quiz Test 01

Oncogene is responsible for
(A) Lung disease
(B) Typhoid
(C) Cancer
(D) Malaria

Answer
Cancer

MDT is used for disease
(A) Tuberculosis
(B) Leprosy
(C) Diptheria
(D) Polio

Answer
Leprosy

Fermentation takes place in which componenet of a cell ?
(A) Cytoplasm
(B) Mitochondria
(C) Both A and B
(D) Nucleus

Answer
Cytoplasm

Leprosy bacillus was invented by
(A) Koch
(B) Hansen
(C) Fleming
(D) Harvey

Answer
Hansen

Which fungus is known as Green Mold?
(A) Aspergillus
(B) Saccharomyces
(C) Mucus
(D) Penicillium

Answer
Penicillium

Fresh Yeast cells are good source of
(A) Vitamin-B
(B) Caffeine
(C) Nicotine
(D) Morphine

Answer
Vitamin-B

Typhoid is caused by
(A) Pseudomonas sp.
(B) Staphyoeoccus
(C) Bacillus
(D) Salmonella typhi

Answer
Salmonella typhi

Main use of salt in diet is to
(A) ease the process of cooking
(B) increase the taste
(C) produce small amount of hydrochloric acid required for digestion
(D) inclease solubility of food particles in water

Answer
produce small amount of hydrochloric acid required for digestion

Cell or tissue death within a living body is called as
(A) Neutrophillia
(B) Nephrosis
(C) Necrosis
(D) Nepolasis

Answer
Necrosis

If the radius of blood vessels of a person decreases his/her blood pressure will
(A) Decrease
(B) Increase
(C) Remain Same
(D) Becomes zero

Answer
Increase

Cell wass of Archaeobacteria does not contain
(A) Peptidoglycan
(B) Proteins
(C) Glycoproteins
(D) Polysaccharides

Answer
Peptidoglycan

Robert Hooke discovered
(A) Nucleus
(B) Mitochondria
(C) Cell
(D) DNA

Answer
Cell

Ecosystem not found in Pakistan is
(A) Tropical rain forest
(B) Temperate deciduous forest
(C) Grassland
(D) Tundra

Answer
Tropical rain forest

Animals of which class of arthropoda are present everywhere
(A) Crustacean
(B) Insecta
(C) Arachnida
(D) Myriapoda

Answer
Insecta

Co-ordination in man is brought about by
(A) Nervous system
(B) Endocrine system
(C) Both A and B
(D) none of these

Answer
Both A and B

mitochondria in heart muscles are nearly
(A) 400
(B) 375
(C) 350
(D) 325

Answer
350

In slime molds spores develop into
(A) Swarm cells
(B) Biflagellated cells
(C) Amoeboid reproductive cells
(D) All of these

Answer
All of these

The first action spectrum was obtained by
(A) T.W.Englemam
(B) Malleus
(C) T.W.Inws
(D) W.Stapes

Answer
T.W.Englemam

The first action spectrum was obtained by
(A) T.W.Englemam
(B) Malleus
(C) T.W.Inws
(D) W.Stapes

Answer
T.W.Englemam

Those bacteria which are fully dependent upon their host for nutrition are called
(A) Heterotrophic bacteria
(B) Chemosynthetic bacteria
(C) Saprophytic bacteria
(D) Parasitic bacteria

Answer
Parasitic bacteria

A moth is closely related to
(A) Wasp
(B) Beetle
(C) Cricket
(D) Butterfly

Answer
Butterfly

Polysome is formed during __________ process?
(A) Transcription
(B) Secretion
(C) Translation
(D) Division

Answer
Translation

Polysome is formed during __________ process?
(A) Transcription
(B) Secretion
(C) Translation
(D) Division

Answer
Translation

Sleep movements are a type of
(A) Turgor movements
(B) Growth movements
(C) Tactic movements
(D) Paratonic movments

Answer
Turgor movements

Antheridia and archegonia are born on ______________ in bryophytes
(A) Sporophyte
(B) Gametophyte
(C) Both of these
(D) None of these

Answer
Gametophyte

ATP are consumed during
(A) Glycolysis
(B) Kreb’s cycle
(C) Light dependent phase
(D) none of these

Answer
Glycolysis

Radiolarians belong to which of the following protozoal group
(A) Zooflagellates
(B) Actinopods
(C) Foraminifera
(D) Apicomplexans

Answer
Actinopods

Pepsinogen is produced from
(A) Mucous cells
(B) Parietal cells
(C) Zymogen cells
(D) All of these

Answer
Zymogen cells

Circulatory system is open type in all of the following except
(A) Arthropoda
(B) Gastropoda
(C) Pelecypoda
(D) Cephalopoda

Answer
Cephalopoda

Chlorophylls are found embedded in the __________ membranes?
(A) Stroma
(B) Grana
(C) Thylakoid
(D) Intergrana

Answer
Thylakoid

The one which is present in all living things
(A) Cell nucleus
(B) DNA or RNA
(C) Cell membrane
(D) Vacuole

Answer
DNA or RNA

About __________ of the body weight of a mammal is water ?
(A) 60%
(B) 65%
(C) 70%
(D) 75%

Answer
70%

__________ is the potential surce of chemical energy for cellular activities?
(A) C-H bond
(B) C-O bond
(C) C-N bond
(D) P-O-C bond

Answer
C-H bond

The molecules of living matter that provide building blocks are mostly based on
(A) Carbon
(B) Nitrogen
(C) Hydrogen
(D) Ammonia

Answer
Carbon

In plants there are____3___basic types of tissues?
(A) 2
(B) 3
(C) 4
(D) None of these

Answer
3

The type of plastids which help in pollination is
(A) Chromoplasts
(B) Leucoplasts
(C) Chloroplasts
(D) All of these

Answer
Chromoplasts

Centrioles are composed of ________ triplets of microtubules
(A) 3
(B) 9
(C) 10
(D) 15

Answer
9

Of the following, which one has more variety of nutrition
(A) Animals
(B) Bacteria
(C) Plants
(D) Fungi

Answer
Animals

Earthworm is an example of ______________feeder?
(A) Detritus
(B) Fluid
(C) Macrophageus
(D) Filter

Answer
Detritus

The number of chromosomes in human cell is
(A) 48
(B) 44
(C) 46
(D) 26

Answer
46

___________ supported theory of special creation?
(A) Linnaeus
(B) Aristotle
(C) Mendel
(D) Lamarck

Answer
Linnaeus

Diatoms stay afloat due to
(A) Flagella
(B) Stored lpids
(C) Pseudopodia
(D) All of these

Answer
Stored lpids

An activated enzyme consisting of polypeptide chain and a cofactor is called
(A) Apoenzyme
(B) Holoenzyme
(C) Activated enzyme
(D) Both B and C

Answer
Both B and C

Quantitative study of energy relationships in biological systems obeys
(A) Bioenergetics
(B) Laws of thermodynamics
(C) Laws of thermo chemistry
(D) Laws of chemical energetic

Answer
Laws of thermodynamics

If a plasmolysed plant cell is placed in water the cell will
(A) Burst
(B) Be Killed
(C) Be deplasmolysed
(D) Show no change in it

Answer
Be deplasmolysed

Cuticular transpiration is _________ of total transpiration?
(A) 6-8%
(B) 5-7%
(C) 7-9%
(D) 4-6%

Answer
5-7%

The resolving power of electric microscope is
(A) 0.2 mm
(B) 0.2 nm
(C) 0.2 m
(D) none of these

Answer
0.2 nm

Pox viruses are
(A) RNA non-enveloped
(B) RNA enveloped
(C) DNA non-enveloped
(D) DNA enveloped

Answer
DNA enveloped

The name animal is derived from the word
(A) Anima
(B) Anemia
(C) Aname
(D) All of these

Answer
Anima

Of the following which one is not the characteristic of mitochondria?
(A) It contains F1 particles
(B) It is involved in the synthesis of protein
(C) It is a self replicating organelle
(D) Number of mitochondria is constant

Answer
Number of mitochondria is constant

Reflex actions below the neck are under control of
(A) Brain
(B) Spinal cord
(C) Hypothalamus
(D) None of these

Answer
Spinal cord

Mastication is carried out by
(A) Teeth
(B) Tongue
(C) Smooth muscles
(D) All of these

Answer
Teeth

Cellular organelles related with H2O2 are
(A) Glyoxisomes
(B) Lysosomes
(C) Peroxisomes
(D) Ribosomes

Answer
Peroxisomes

Chlorophyll molecule contrains __________ as central metal ion
(A) Fe2+
(B) Mg2+
(C) Zn2+
(D) Cu2+

Answer
Mg2+

An illness which largely affects girls usually just after the onset of puberty
(A) Bulimia nervosa
(B) Obesity
(C) Anorexia nervosa
(D) None of these

Answer
Anorexia nervosa

The tumours which are of small size and localized are
(A) benign
(B) malignant
(C) gentle
(D) nasty

Answer
benign

The innate tendency of offspring to resemble their parents is called
(A) heridity
(B) heridisk
(C) varaition
(D) none

Answer
heridity

The size of smallest virus is
(A) 10 nm
(B) 20 nm
(C) 30 nm
(D) 40 nm

Answer
20 nm

Nutrition in fungi is
(A) Photosynthetic
(B) Chemosynthetic
(C) Completely parasitic
(D) Absorptive heterotrophs

Answer
Absorptive heterotrophs

Five kingdom classification was proposed by
(A) Carlous Linnaeus
(B) E-Chatton
(C) Robert Whittaker
(D) Lynn Margulis and Karlene Schwartz

Answer
Robert Whittaker

Most of the cellular secretions are ________ in nature?
(A) Glycolipids
(B) Glycoproteins
(C) Nucleohistones
(D) Proteins

Answer
Glycoproteins

In chlorophytes the main energy stores are
(A) Cellulose
(B) Starch
(C) Glycogen
(D) All of these

Answer
Starch

_________ is example of pure form of cellulose?
(A) Silk
(B) Wool
(C) Cotton
(D) Paper

Answer
Cotton

Cn(H2O)n. is a general formula of
(A) Monosaccharides
(B) Oligosaccharides
(C) Ploysacharides
(D) Carbohydrates

Answer
Carbohydrates

Diatomaceous earth is used for making
(A) Fertilizers
(B) Weedicides
(C) Insecticides
(D) Fire proof bricks

Answer
Fire proof bricks

The part of chloroplast where CO2 is fixed to manufacture sugar is
(A) Stroma
(B) Grana
(C) Thylakoid
(D) Outer membrane

Answer
Stroma

Spores produced by slime molds are
(A) Haploid
(B) Diploid
(C) Triploid
(D) None of these

Answer
Haploid

The blood enters the ________________ side of heart ?
(A) Posterior
(B) Anterior
(C) Lateral
(D) All possible

Answer
Posterior

Hunger contractions are _____ contractions?
(A) Antiperistalsis
(B) Peristalsis
(C) Voluntary
(D) None of these

Answer
Peristalsis

The maximum amount of oxygen which normal human blood absorbs and carries at sea level is ________ per 100 ml of blood
(A) 10 ml
(B) 20 ml
(C) 30 ml
(D) 40 ml

Answer
20 ml

Most dinoflagellates are
(A) Unicellular
(B) Multicellular
(C) Both of these
(D) Zooflagellates

Answer
Unicellular

Most cell membranes are composed principally of ?
(A) DNA ad protein
(B) Protein and Lipids
(C) Protein and Chitin
(D) Protein and RNA

Answer
Protein and Lipids

Stunted growth of roots is due to the deficiency of____________in plants?
(A) Potassium
(B) Magnesium
(C) Phosphorus
(D) Iron

Answer
Phosphorus

An enzyme which converts a dipeptide into separate amino acids is an example of
(A) Decarboxylase
(B) Hydrolase
(C) Oxidoreductase
(D) Transferase

Answer
Hydrolase

Kingdom protista includes_____________phyla?
(A) 27
(B) 28
(C) 26
(D) 29

Answer
27

S-band locomotion is characteristically seen in
(A) Bony fish
(B) Cartilaginous fish
(C) Fish like mammals
(D) All fishes

Answer
Cartilaginous fish

Carbon commonly combines with
(A) H
(B) N & O
(C) P & S
(D) All of these

Answer
All of these

Biometry is the application of_______ in biology
(A) Algebra
(B) Statistics
(C) Matrix
(D) Geometry

Answer
Statistics

Oil body is found in the cells of
(A) Diatoms
(B) Slime moulds
(C) Chlorophycean forms
(D) None of the these

Answer
Diatoms

In esterification OH comes from
(A) Organic acid
(B) Alcohol
(C) Water
(D) Sugar

Answer
Alcohol

In esterification OH comes from
(A) Organic acid
(B) Alcohol
(C) Water
(D) Sugar

Answer
Alcohol

In esterification OH comes from
(A) Organic acid
(B) Alcohol
(C) Water
(D) Sugar

Answer
Alcohol

Most of the marine invertebrates are
(A) Osmoconformers
(B) Osmoregulators
(C) Both depend upon the concentration of sea water
(D) None of these

Answer
Osmoconformers

Nitrogen is present in
(A) carbohydrates
(B) proteins
(C) lipids
(D) carbonates

Answer
proteins

The part of sporophyte which is called sporangium is
(A) Capsule
(B) Foot
(C) Stalk
(D) None of these

Answer
Capsule

Kingdom Protoctista includes
(A) Fungi
(B) Prokaryotes
(C) protists
(D) Piantae

Answer
protists

Extreme change in pH results in
(A) Change in ionization of amino acids at the active site of the enzyme
(B) Change in the ionization of the substrate
(C) Denaturation of the enzyme
(D) Increase in the reaction rate

Answer
Denaturation of the enzyme

The agent of controversial nature causing mad cow infection is
(A) Bacteria
(B) Cowpox Virus
(C) Adenovirus
(D) Prion

Answer
Prion

The phylum chrordata comprise about how many species?
(A) 25,000
(B) 50,000
(C) 100,000
(D) 10,00,000

Answer
50,000

_________ give rise to macrophages, which destroy larger particles by phagocytosis.
(A) Nautrophils
(B) Basophila
(C) Monocyte
(D) Lymphocyte

Answer
Monocyte

Examples of Rhodophytes are
(A) Chondrus
(B) Polysiphonia
(C) Both of these
(D) Pinnularia

Answer
Both of these

Crop rotation helps in
(A) Growth of pathogens
(B) Soil Infertility
(C) Slowing of crops growth
(D) Eradication of disease

Answer
Eradication of disease

Haemodialysis means cleaning of
(A) Urine
(B) Blood
(C) Glomerular filterate
(D) Coelomic fluid

Answer
Blood

The arrangement of ________ speaks of the division of labour within cell?
(A) Molecule
(B) Subatomic particles
(C) Atoms
(D) Organelles

Answer
Organelles

Starch cellulose and glaycogen yield ___________ on complete hydrolysis?
(A) Maltose
(B) Sucrose
(C) Fructose
(D) Glucose

Answer
Glucose

Genes will not be found in gene pairs in the
(A) Muscle cell of worm
(B) Uterine cells of dog
(C) Sperm cells of frog
(D) Guard cells of leaf

Answer
Sperm cells of frog

The Science of growing terrestrial plants in an aerated solution is
(A) Hydrodynamics
(B) Hydroponics
(C) Hydrotonics
(D) None of them

Answer
Hydroponics

The arrangement of _________ speaks of the division of labour within cell?
(A) Molecule
(B) Subatomic particles
(C) Atoms
(D) Organelles

Answer
Organelles

Of the following which one is not included in Proterostomes?
(A) Arthropods
(B) Hemichordates
(C) Annelids
(D) Molluses

Answer
Hemichordates

A large regional community primarily determined by climate is called
(A) Population
(B) Community
(C) Biome
(D) Habitat

Answer
Biome

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