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Biology Online Quizzes
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Biology Quiz Test 01
Oncogene is responsible for
(A) Lung disease
(B) Typhoid
(C) Cancer
(D) Malaria
MDT is used for disease
(A) Tuberculosis
(B) Leprosy
(C) Diptheria
(D) Polio
Fermentation takes place in which componenet of a cell ?
(A) Cytoplasm
(B) Mitochondria
(C) Both A and B
(D) Nucleus
Leprosy bacillus was invented by
(A) Koch
(B) Hansen
(C) Fleming
(D) Harvey
Which fungus is known as Green Mold?
(A) Aspergillus
(B) Saccharomyces
(C) Mucus
(D) Penicillium
Fresh Yeast cells are good source of
(A) Vitamin-B
(B) Caffeine
(C) Nicotine
(D) Morphine
Typhoid is caused by
(A) Pseudomonas sp.
(B) Staphyoeoccus
(C) Bacillus
(D) 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
Cell or tissue death within a living body is called as
(A) Neutrophillia
(B) Nephrosis
(C) Necrosis
(D) Nepolasis
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
Cell wass of Archaeobacteria does not contain
(A) Peptidoglycan
(B) Proteins
(C) Glycoproteins
(D) Polysaccharides
Robert Hooke discovered
(A) Nucleus
(B) Mitochondria
(C) Cell
(D) DNA
Ecosystem not found in Pakistan is
(A) Tropical rain forest
(B) Temperate deciduous forest
(C) Grassland
(D) Tundra
Animals of which class of arthropoda are present everywhere
(A) Crustacean
(B) Insecta
(C) Arachnida
(D) Myriapoda
Co-ordination in man is brought about by
(A) Nervous system
(B) Endocrine system
(C) Both A and B
(D) none of these
mitochondria in heart muscles are nearly
(A) 400
(B) 375
(C) 350
(D) 325
In slime molds spores develop into
(A) Swarm cells
(B) Biflagellated cells
(C) Amoeboid reproductive cells
(D) All of these
The first action spectrum was obtained by
(A) T.W.Englemam
(B) Malleus
(C) T.W.Inws
(D) W.Stapes
The first action spectrum was obtained by
(A) T.W.Englemam
(B) Malleus
(C) T.W.Inws
(D) W.Stapes
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
A moth is closely related to
(A) Wasp
(B) Beetle
(C) Cricket
(D) Butterfly
Polysome is formed during __________ process?
(A) Transcription
(B) Secretion
(C) Translation
(D) Division
Polysome is formed during __________ process?
(A) Transcription
(B) Secretion
(C) Translation
(D) Division
Sleep movements are a type of
(A) Turgor movements
(B) Growth movements
(C) Tactic movements
(D) Paratonic movments
Antheridia and archegonia are born on ______________ in bryophytes
(A) Sporophyte
(B) Gametophyte
(C) Both of these
(D) None of these
ATP are consumed during
(A) Glycolysis
(B) Kreb’s cycle
(C) Light dependent phase
(D) none of these
Radiolarians belong to which of the following protozoal group
(A) Zooflagellates
(B) Actinopods
(C) Foraminifera
(D) Apicomplexans
Pepsinogen is produced from
(A) Mucous cells
(B) Parietal cells
(C) Zymogen cells
(D) All of these
Circulatory system is open type in all of the following except
(A) Arthropoda
(B) Gastropoda
(C) Pelecypoda
(D) Cephalopoda
Chlorophylls are found embedded in the __________ membranes?
(A) Stroma
(B) Grana
(C) Thylakoid
(D) Intergrana
The one which is present in all living things
(A) Cell nucleus
(B) DNA or RNA
(C) Cell membrane
(D) Vacuole
About __________ of the body weight of a mammal is water ?
(A) 60%
(B) 65%
(C) 70%
(D) 75%
__________ 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
The molecules of living matter that provide building blocks are mostly based on
(A) Carbon
(B) Nitrogen
(C) Hydrogen
(D) Ammonia
In plants there are____3___basic types of tissues?
(A) 2
(B) 3
(C) 4
(D) None of these
The type of plastids which help in pollination is
(A) Chromoplasts
(B) Leucoplasts
(C) Chloroplasts
(D) All of these
Centrioles are composed of ________ triplets of microtubules
(A) 3
(B) 9
(C) 10
(D) 15
Of the following, which one has more variety of nutrition
(A) Animals
(B) Bacteria
(C) Plants
(D) Fungi
Earthworm is an example of ______________feeder?
(A) Detritus
(B) Fluid
(C) Macrophageus
(D) Filter
The number of chromosomes in human cell is
(A) 48
(B) 44
(C) 46
(D) 26
___________ supported theory of special creation?
(A) Linnaeus
(B) Aristotle
(C) Mendel
(D) Lamarck
Diatoms stay afloat due to
(A) Flagella
(B) Stored lpids
(C) Pseudopodia
(D) All of these
An activated enzyme consisting of polypeptide chain and a cofactor is called
(A) Apoenzyme
(B) Holoenzyme
(C) Activated enzyme
(D) 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
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
Cuticular transpiration is _________ of total transpiration?
(A) 6-8%
(B) 5-7%
(C) 7-9%
(D) 4-6%
The resolving power of electric microscope is
(A) 0.2 mm
(B) 0.2 nm
(C) 0.2 m
(D) none of these
Pox viruses are
(A) RNA non-enveloped
(B) RNA enveloped
(C) DNA non-enveloped
(D) DNA enveloped
The name animal is derived from the word
(A) Anima
(B) Anemia
(C) Aname
(D) All of these
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
Reflex actions below the neck are under control of
(A) Brain
(B) Spinal cord
(C) Hypothalamus
(D) None of these
Mastication is carried out by
(A) Teeth
(B) Tongue
(C) Smooth muscles
(D) All of these
Cellular organelles related with H2O2 are
(A) Glyoxisomes
(B) Lysosomes
(C) Peroxisomes
(D) Ribosomes
Chlorophyll molecule contrains __________ as central metal ion
(A) Fe2+
(B) Mg2+
(C) Zn2+
(D) Cu2+
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
The tumours which are of small size and localized are
(A) benign
(B) malignant
(C) gentle
(D) nasty
The innate tendency of offspring to resemble their parents is called
(A) heridity
(B) heridisk
(C) varaition
(D) none
The size of smallest virus is
(A) 10 nm
(B) 20 nm
(C) 30 nm
(D) 40 nm
Nutrition in fungi is
(A) Photosynthetic
(B) Chemosynthetic
(C) Completely parasitic
(D) Absorptive heterotrophs
Five kingdom classification was proposed by
(A) Carlous Linnaeus
(B) E-Chatton
(C) Robert Whittaker
(D) Lynn Margulis and Karlene Schwartz
Most of the cellular secretions are ________ in nature?
(A) Glycolipids
(B) Glycoproteins
(C) Nucleohistones
(D) Proteins
In chlorophytes the main energy stores are
(A) Cellulose
(B) Starch
(C) Glycogen
(D) All of these
_________ is example of pure form of cellulose?
(A) Silk
(B) Wool
(C) Cotton
(D) Paper
Cn(H2O)n. is a general formula of
(A) Monosaccharides
(B) Oligosaccharides
(C) Ploysacharides
(D) Carbohydrates
Diatomaceous earth is used for making
(A) Fertilizers
(B) Weedicides
(C) Insecticides
(D) Fire proof bricks
The part of chloroplast where CO2 is fixed to manufacture sugar is
(A) Stroma
(B) Grana
(C) Thylakoid
(D) Outer membrane
Spores produced by slime molds are
(A) Haploid
(B) Diploid
(C) Triploid
(D) None of these
The blood enters the ________________ side of heart ?
(A) Posterior
(B) Anterior
(C) Lateral
(D) All possible
Hunger contractions are _____ contractions?
(A) Antiperistalsis
(B) Peristalsis
(C) Voluntary
(D) None of these
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
Most dinoflagellates are
(A) Unicellular
(B) Multicellular
(C) Both of these
(D) Zooflagellates
Most cell membranes are composed principally of ?
(A) DNA ad protein
(B) Protein and Lipids
(C) Protein and Chitin
(D) Protein and RNA
Stunted growth of roots is due to the deficiency of____________in plants?
(A) Potassium
(B) Magnesium
(C) Phosphorus
(D) Iron
An enzyme which converts a dipeptide into separate amino acids is an example of
(A) Decarboxylase
(B) Hydrolase
(C) Oxidoreductase
(D) Transferase
Kingdom protista includes_____________phyla?
(A) 27
(B) 28
(C) 26
(D) 29
S-band locomotion is characteristically seen in
(A) Bony fish
(B) Cartilaginous fish
(C) Fish like mammals
(D) All fishes
Carbon commonly combines with
(A) H
(B) N & O
(C) P & S
(D) All of these
Biometry is the application of_______ in biology
(A) Algebra
(B) Statistics
(C) Matrix
(D) Geometry
Oil body is found in the cells of
(A) Diatoms
(B) Slime moulds
(C) Chlorophycean forms
(D) None of the these
In esterification OH comes from
(A) Organic acid
(B) Alcohol
(C) Water
(D) Sugar
In esterification OH comes from
(A) Organic acid
(B) Alcohol
(C) Water
(D) Sugar
In esterification OH comes from
(A) Organic acid
(B) Alcohol
(C) Water
(D) Sugar
Most of the marine invertebrates are
(A) Osmoconformers
(B) Osmoregulators
(C) Both depend upon the concentration of sea water
(D) None of these
Nitrogen is present in
(A) carbohydrates
(B) proteins
(C) lipids
(D) carbonates
The part of sporophyte which is called sporangium is
(A) Capsule
(B) Foot
(C) Stalk
(D) None of these
Kingdom Protoctista includes
(A) Fungi
(B) Prokaryotes
(C) protists
(D) Piantae
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
The agent of controversial nature causing mad cow infection is
(A) Bacteria
(B) Cowpox Virus
(C) Adenovirus
(D) Prion
The phylum chrordata comprise about how many species?
(A) 25,000
(B) 50,000
(C) 100,000
(D) 10,00,000
_________ give rise to macrophages, which destroy larger particles by phagocytosis.
(A) Nautrophils
(B) Basophila
(C) Monocyte
(D) Lymphocyte
Examples of Rhodophytes are
(A) Chondrus
(B) Polysiphonia
(C) Both of these
(D) Pinnularia
Crop rotation helps in
(A) Growth of pathogens
(B) Soil Infertility
(C) Slowing of crops growth
(D) Eradication of disease
Haemodialysis means cleaning of
(A) Urine
(B) Blood
(C) Glomerular filterate
(D) Coelomic fluid
The arrangement of ________ speaks of the division of labour within cell?
(A) Molecule
(B) Subatomic particles
(C) Atoms
(D) Organelles
Starch cellulose and glaycogen yield ___________ on complete hydrolysis?
(A) Maltose
(B) Sucrose
(C) Fructose
(D) 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
The Science of growing terrestrial plants in an aerated solution is
(A) Hydrodynamics
(B) Hydroponics
(C) Hydrotonics
(D) None of them
The arrangement of _________ speaks of the division of labour within cell?
(A) Molecule
(B) Subatomic particles
(C) Atoms
(D) Organelles
Of the following which one is not included in Proterostomes?
(A) Arthropods
(B) Hemichordates
(C) Annelids
(D) Molluses
A large regional community primarily determined by climate is called
(A) Population
(B) Community
(C) Biome
(D) Habitat