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Biology Life Science Test Medium Mode MCQs With Answers
Question # 1
Liver receive blood from digestive system through..
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Portal vein
Hepatic vein
Hepatic portal vein
Iliac vein
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Question # 2
The Presence of nucleus in the cell was reported by
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Lorenz Oken
Theodor Schwann
Schleiden
Robert Brown
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Question # 3
Polytrichum is a.
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Moss
Hornword
Liverworts
Clab moss
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Question # 4
Peptidoglycans absent in.
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Eubacteria
Cyanobacteria
Archaeobacteria
Gram negative bacteria
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Question # 5
De Duve discovered cell organelle.
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Golgi complex
Plastids
Mitochondria
Lysosome
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Question # 6
Irreversible inhibitors form which bonds active site.
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Hydrogen bonds
Covalent bonds
Ionic bonds
Hydrophobic bond
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Question # 7
Co-enzyme is a
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Covalently bonded non-protein part of an enzyme
Loosely bonded non-protein part of an enzyme
Co-factor consists of metal ions
None of these
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Question # 8
Length of the duodenum is.
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15-20 cm
20-25 cm
30-35 cm
10-15 cm
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Question # 9
Cuticular transpiration takes places at.
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Morning
Noon
Evening
Night
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Question # 10
If we add more substrate to already occurring enzymatic reaction and it has no effect on the rate of reaction, then what will be be the situation of the following
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Saturation
Denaturation
Composition
Inhibition
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Question # 11
The animals which eat both plants and animals are called.
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Herbivores
Carnivores
Omnivores
Filter feeders
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Question # 12
Hyponastic movements occur in response to.
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Contact
Chemical
Temperature
Water
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Question # 13
Ecosystem present on land or soil is called.
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Terrestrial
Atmosphere
Lithosphere
Both a and c
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Question # 14
Histones are positively charged due to an abundance of the basic amino acids
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Arginine
Lysine
Both a & c
Alanine
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Question # 15
The rate of heat production is increased by increasing muscle contraction by movement is called.
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Thermoregulation
Shilvering thermogenesis
Non shievering
Thermostat thermogenesis
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Question # 16
In incubating eggs artificially the incubators are usually regulated at temperature between
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20 - 22
o
C
27 - 29
o
C
30 - 32
o
C
36 - 38
o
C
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Question # 17
Lavering is the characteristic of.
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Tundra
Desert
Grass land
Talga
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Question # 18
Water used for industrial purposes is about
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9%
90%
70%
50%
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Question # 19
A chromosome with equal length of its arms.
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Acrocentric
Metacentric
sub meta centric
Telocentric
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Question # 20
A localized group of individuals belonging to the same species is called as.
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Community
Population
Ecosystem
Bio sphere
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Question # 21
Endosymbiont hypothesis explains origin of.
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cell
Prokaryotic cell
Eukaryotic cell
Ribosome
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Question # 22
The remodeling of bone is a function of which cells?
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Chondrocytes and asteocytes
Osteoblasts and osteoclasts
Chondroblasts and osteoclasts
Chondroblasts and osteocytes
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