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Biology Life Science Test Medium Mode MCQs With Answers
Question # 1
According to Lock and key model , the activate is.
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Soft structure
Flexible structure
Rigid structure
Attractive structure
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Question # 2
Haem portion of hemoglobin is same to porphyrin ring with a difference of.
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Carbon atom
Hydrogen atom
Iron atom
Oxygen atom
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Question # 3
Hepatitis 'B' is also called.
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Delta Hepatitis
Infectious Hepatitis
Infusion Hepatitis
Serum Hepatitis
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Question # 4
The amount of glucose into ATP during an aerobic respiration is.
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1%
2%
3%
4%
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Question # 5
Corals produce hard exoskeleton formed of.
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NaCO3
CaCO3
NaOH
KCl
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Question # 6
Bacteriophage replicates only in ____________ cells.
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Animal
Plant
Bacteria
None of these
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Question # 7
Amino acids are linked to each other by
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Ester bond
Glyosidic bond
Peptide bond
Hydrophobic bond
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Question # 8
Water potential of pure water is.
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Less than zero
Equal to zero
More than zero
Equal to one
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Question # 9
The animals which ingest food in liquid form are called.
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Carnivores
Filter feeders
Fluid feeders
Macrophageous feeders
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Question # 10
Human tissues contains about 20% water in.
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Brain cells
Bone cells
Kidney cells
Skin cells
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Question # 11
Actinopods with glassy shells are.
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Rotifers
Radiolarians
Diatorms
Forams
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Question # 12
In aquatic ecosystem , near shore zone is called.
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Limnetic zone
Littoral zone
Profundal zone
Benthic zone
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Question # 13
Animals that do not require to adjust their internal osmotic state actively are known.
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Osmoregulators
Osmocorformers
Terrestrials
Hypertonic
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Question # 14
Oxygen carryiing capacity of blood does not depend upon:
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Particle pressure of CO
2
Particle pressure of O
2
Height from sea level
Quantity of blood
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Question # 15
What will be the age of willow tree 10 centimeter long and 70 centimeter in diameter
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40 years
50 years
60 years
70 years
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Question # 16
Littoral invertebrate animals include
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Small crustaceans
Insect larvae
Snail flatworms
All a,b,and c
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Question # 17
A diluted solution compared to the cell concentration is termed as.
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Hypertonic
Hypotonic
Isotonic
Paratonic
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Question # 18
Cancer is caused mainly by mutation in.
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somatic cells
Sex cells
Malignant cells
Reproductive cells
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Question # 19
Three sets of microtubules (fibres) originate from each pair of
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Glyoxisomes
Iysosomes
Peroxisomes
Centrioless
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Question # 20
O blood has neither A or B antigen but it does have
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Anti - A antibodies
Anti - B antibodies
Anti - O antibodies
Both a & b
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Question # 21
Okazaki fragments are about 1000 - 2000 nucleotides long in
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Prokaryotes
Eukaryotes
Both a & b
None of these
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Question # 22
The synovial joint is surround by a layer of connective tissue called.
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Fibrous joints
Annulus joints
Hyaline joint
Hematoma
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