BIOLOGY QUESTIONS
Q.1
Which of the following receptors produce sensation of pain?
A) Mechanoreceptor
B) Nociceptors ✓
C) Chemoreceptors
D) Thermoreceptors
Q.2
When your finger accidentally gets caught in a door, the pain message is sent to your brain through:
A) Homeostasis
B) Sensory receptors ✓
C) Caffeine
D) The medulla
Q.3
Neck has ____ type of joint.
A) Ball and socket
B) Pivot ✓
C) Hinge
D) Fibrous
Q.4
End product of hemoglobin break down is:
A) Creatinine
B) Bilirubin ✓
C) Hypoxanthin
D) Xanthin
Q.5
In what direction, can a DNA polymerase work when catalyzing the addition of nucleotide monomers to build a strand of DNA?
A) From the 5′ toward the 3′ end of the new strand being assembled ✓
B) From the replication centers in two directions called replication forks
C) From the 3′ to the 5′ end of the strand being assembled
D) In both directions if DNA ligase is present
Q.6
Which bond is the potential source of chemical energy for cellular activities?
A) C-N
B) C-O
C) C-H ✓
D) H-O
Q.7
Sharks and rays are included in class:
A) Cyclostomata
B) Chondrichthyes ✓
C) Osteichthyes
D) Tetrapoda
Q.8
In what stage of aerobic respiration are 2-carbon molecules oxidized completely to carbon dioxide?
A) Glycolysis
B) ETC
C) Krebs cycle ✓
D) Calvin cycle
Q.9
Which of the following does not have specialized respiratory organs?
A) Hydra ✓
B) Birds
C) Cockroach
D) Both A and B
Q.10
Humming birds belong to the category:
A) Heterotherms ✓
B) Endotherms
C) Ectotherms
D) None of these
Q.11
Syphilis is caused by:
A) Neisseria gonorrhoeae
B) Cats worm
C) Treponema pallidum ✓
D) Herpes simplex
Q.12
In moths’ male is:
A) Heterogametic
B) Dieogametic
C) Homogametic ✓
D) Both B and C
Q.13
When carbon dioxide pressure increases the capacity of haemoglobin to hold oxygen:
A) Increases many folds
B) Decreases ✓
C) Remains constant
D) Is doubled
Q.14
The soluble part of the cytoplasm is termed as:
A) Cisternae
B) Cytosol ✓
C) Endocytosis
D) Both A and B
Q.15
Name the enveloped RNA virus that causes infusion hepatitis.
A) HBV
B) HAV
C) HCV ✓
D) None of these
Q.16
In general, asexual reproduction is common in:
A) Humans
B) Basidiomycota
C) Deuteromycota ✓
D) Basidiospores
Q.17
Name the vertebrates which are without jaws.
A) Osteichthyes
B) Cyclostomata ✓
C) Chondrichthyes
D) None of these
Q.18
The total inside capacity of lungs of adult human beings when fully inflated is:
A) 5 ml
B) 50 ml
C) 500 ml
D) 5000 ml ✓
Q.19
Which of the following belong to collenchyma cells?
A) Fibers
B) Vessels
C) Sclereides
D) None of these ✓
Q.20
Which of the following promotes both leaf and fruit growths?
A) Auxins
B) Gibberellins ✓
C) Abscisic acid
D) Ethane
Q.21
Name the external factor of growth in plants:
A) Carbon dioxide
B) Water
C) Hormones
D) Nutrition ✓
Q.22
The genes of blue opsin are present on:
A) Autosome 9
B) Autosome 7
C) Autosome 1
D) Autosome 3 ✓
Q.23
The dew drops on tips of grass leaves is an example of:
A) Infestation
B) Bleeding
C) Exudation ✓
D) Imbibition
Q.24
Which of the following modifies proteins and lipids by adding carbohydrates?
A) Golgi Apparatus ✓
B) Polysome
C) Plasma membrane
D) None of these
Q.25
Which of the following are spiral-shaped bacteria?
A) Cocci
B) Bacilli
C) Pseudomonas
D) Vibrio ✓
Q.26
Which of the following is used for lowering blood cholesterol?
A) Neurospora
B) Griseofulvin
C) Aspergillus
D) Lovastatin ✓
Q.27
Which of the following are called placental mammals?
A) Prototheria
B) Eutheria ✓
C) Metatheria
D) All of these
Q.28
The attraction among water molecules which hold water together is called:
A) Tension
B) Adhesion
C) Cohesion ✓
D) Ambibition
Q.29
Pick the paratonic movement from the following:
A) Nastic
B) Turgor
C) Growth
D) Tactic ✓
Q.30
It controls the several automatic functions like breathing, heart rate and blood pressure:
A) Midbrain
B) Pons
C) Medulla ✓
D) Cerebellum
Q.31
Which of the following has 40 chromosomes?
A) Corn
B) Sugarcane
C) Frog ✓
D) Mouse
Q.32
The cell suspension culture of ____ produces quinine.
A) Soybean
B) Cinchona ledgeriana ✓
C) Digitalis lanata
D) Luceferin
Q.33
Which one of the following is most slender in structure?
A) Microtubules
B) Microfilaments ✓
C) Intermediate filaments
D) Both A and B
Q.34
Name the human tissues that contain about 85% water.
A) Nerve cells
B) Bone cells
C) Brain cells ✓
D) None of these
Q.35
Which of the following are colorless?
A) Chloroplasts
B) Chromoplasts
C) Leucoplasts ✓
D) None of these
Q.36
Name the one involved in DNA replication.
A) Cysts
B) Mesosomes ✓
C) Ribosomes
D) Spores
Q.37
Which of the following has rootless sporophytes?
A) Psilopsida ✓
B) Tracheophyta
C) Lycopsida
D) Sphenopsida
Q.38
Chlorophylls absorb mainly ____ wavelength.
A) Yellow
B) Green
C) Violet-blue ✓
D) Indigo
Q.39
____ did not have the adaptations to remove the flooding of their cells in fresh water.
A) Both B, D
B) Hydrophytes
C) None of B, D
D) Xerophytes ✓
Q.40
Which of the following is made up of bones and cartilage?
A) Endoskeleton ✓
B) Exoskeleton
C) Hydrostatic skeleton
D) Both A and B
Q.41
This disease is characterized by the decline in brain function.
A) Alzheimer’s disease ✓
B) Parkinson’s disease
C) Epilepsy
D) None of these
Q.42
Prophase, metaphase and telophase are subdivisions of:
A) Mitosis
B) Karyokinesis ✓
C) Cytokinesis
D) None of these
Q.43
____ organs are functionally different but structurally alike.
A) Analogous
B) Unilogous
C) Homologous ✓
D) Hypologous
Q.44
Which of the following gives blue color with iodine?
A) Starch ✓
B) Cellulose
C) Glycogen
D) All of these
Q.45
Herpes simplex is caused by ____ virus.
A) Enveloped RNA
B) RNA tumor
C) Glycogen
D) Both B and C ✓
Q.46
Name the cyanobacteria which are helpful in fixing atmospheric nitrogen.
A) Heterocysts
B) Nostoc ✓
C) Akinetes
D) Hormogonia
Q.47
Name the class that contains seedless plants.
A) Angiospermae
B) Gemnospermae
C) Paraphsys
D) Filicineae ✓
Q.48
Which form of anaerobic respiration occurs in muscle cell of humans and other animals during extreme physical activities?
A) Alcoholic fermentation
B) Lactic acid fermentation ✓
C) Glycolysis
D) Pyruvic acid oxidation
Q.49
How much water approximately is required to excrete 1 kg of ammonia nitrogen?
A) 500 ml
B) 5 litre
C) 300 litre
D) 500 litre ✓
Q.50
Which disease causes immobility and fusion of vertebral joint?
A) Sciatica
B) Spondylosis ✓
C) Disc slip
D) Rickets
Q.51
Which hormone continues to promote protein synthesis throughout the body even after the cease in growth?
A) TSH
B) ADH
C) ACTH
D) STH ✓
Q.52
Position of a gene on the chromosome is called its:
A) Phenotype
B) Locus ✓
C) Junction
D) Genotype
Q.53
Pick the biotic component from the following.
A) Soil
B) Water
C) Atmosphere
D) Animals ✓
Q.54
The two strands in DNA are ____ coiled to each other.
A) Parallel
B) Antiparallel ✓
C) Both A, B
D) None of these
Q.55
Name the class without antennae.
A) Arachnida ✓
B) Myriapoda
C) Insecta
D) Crustacea
Q.56
The African sleeping sickness is caused by:
A) Entamoeba histolytica
B) Trypanosoma ✓
C) Zooflagellates
D) Ciliates
Q.57
Which of the following does not belong to angiospermic families?
A) Picea ✓
B) Poaceae
C) Rosaceae
D) Fabaceae
Q.58
Name the nutrition resulted by feeding on dead and decaying matter.
A) Saprophytic ✓
B) Parasitic
C) Symbiotic
D) Both B and C
Q.59
How many grams of nitrogen can be eliminated in form of uric acid by 50 ml of water?
A) 20
B) 25
C) 30
D) 50 ✓
Q.60
Which disease is caused by low calcium in the blood?
A) Tetany ✓
B) Cramp
C) Muscle fatigue
D) Sciatica
Q.61
It is known that red light ____ flowering in the long day plants.
A) Synchronizes
B) Inhibits
C) Promotes ✓
D) Does not affect
Q.62
The colour phenotype of the grain is the sum of individual effects of ____ alleles.
A) Six
B) Five
C) Four ✓
D) Five or three
Q.63
In ____ zone the light is insufficient to support photosynthesis.
A) Desert
B) Profundal ✓
C) Littoral
D) All of these
Q.64
The optimum temperature for enzymes of human body is:
A) 32°F
B) 46°C
C) 313 K
D) 37°C ✓
Q.65
Which of the following damages wooden ships?
A) Sepia
B) Limax
C) Teredo ✓
D) Ostrea
Q.66
Which of the following may build coral reefs along with coral animals?
A) Myxomycota
B) Brown algae
C) Green algae
D) Red algae ✓
Q.67
Which of the following do not have a body cavity?
A) Pseudocoelomata
B) Acoelomata ✓
C) Coelomata
D) None of these
Q.68
Name the neurotic disorder characterized by bouts of over eating of fattening foods.
A) Bulimia nervosa ✓
B) Dyspepsia
C) Anorexia nervosa
D) Salmonella
Q.69
Which one of these is an example of tubular excretory system called metanephridia?
A) Planaria
B) Hydra
C) Cockroach
D) Earthworm ✓
Q.70
Name the human tissues that contain about 85% water:
A) Nerve cells
B) Bone cells
C) Brain cells ✓
D) None of these
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