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Biology Life Science Test Medium Mode MCQs With Answers
Question # 1
Prosthetic group is
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Covalenty bonded non-protein part of an enzyme
Loosely bonded non-proteins part of an enzyme
Co-factor consists of metal ions
None of these
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Question # 2
Vertebrates that develop embryonic membranes around their embryo called
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Amniotes
Abamniotes
Embryotes
None of these
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Question # 3
Cardiac muscles can be distinguished from other muscle fibers because cardiac muscles
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Contain only actin
Voluntary in action
Lacks regular arrangement of sarcomeres
Have intercalated disc
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Question # 4
The plasma proteins constitute percent by weight of plasma.
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7.9%
9-11%
11-13%
13-15%
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Question # 5
During respiratory chain co enzyme Q is oxidized.
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Cytochrome a
Cytochrome b
Cytochrome c
Cytochrome a3
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Question # 6
The number of capsomeres in capsid of adenovirus are.
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152
252
352
452
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Question # 7
Water is dense than air
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800 times
1800 times
8000 times
80,000 times
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Question # 8
How much air can lungs when they are fully inflated
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5 liters
4 liters
3.5 liters
4.5 liters
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Question # 9
Hepatic and pancreatic secretions are also stimulated by hormone
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Thyroxin
Insulin
Gastrin
Secretin
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Question # 10
Which of the following is true about mammals
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They have right aortic each only
They have left aortic each only
They have left and right aortic arches
They do not have aortic each
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Question # 11
Muscles of stomach are of which type.
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Skeletal
smooth
Cardiac
Voluntary
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Question # 12
Hag fishes are
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Osmoregulators
Isotonic
Hypertonic
Hypotonic
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Question # 13
Oestrus cycle, a reproductive cycle in found in as females except.
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Cat
Cow
Humanin being
Lion
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Question # 14
Which is the most important mechanism for water loss from the body?
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Excretiong in urine
Sneezing
Sweating
Eleminatin in feces
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Question # 15
Bats and humming birds are called.
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Ectotherms
endotherms
Heterotherms
Mesotherms
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Question # 16
Soyabean is an example of plants.
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Short day
Long day
Dary neutral
Day independent
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Question # 17
The Sclerenchyma has thick secondary walls usually impregnated with.
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Chitin
Pectin
sillica
Lignin
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Question # 18
A fluid is secreted to provide liquid medium, protection and nourishment.
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Corpus luteum
Follicle
Ilterus
Sertoli
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Question # 19
Eukaryotes are thought to have first appeared about____billion years ago
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1.2
1.3
1.4
1.5
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Question # 20
In neurons the message is transmitted across synapse in the form of chemical messenger called.
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Nerve impulse
Synaptic vesicle
Neurotransmitters
Communlaction
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Question # 21
A full set of genes of an individual is called
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Genotype
Genomic library
Genome
Allelomorph
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Question # 22
Secondary growth leads to an increase in the diameter if the.
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Leaf
Root
Stem
Stem and root
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