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Biology Life Science Test Medium Mode MCQs With Answers
Question # 1
Ratti is formed from seeds of a plant that belongs to family.
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Fabaceae
Solanaceae
Rosaceae
Mimosaceae
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Question # 2
The pressure flow theory is the most acceptable theory for the transport in the phloem of
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Gymnosperm
Bryophytes
Angiosperms
Pteridophyte
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Question # 3
In Cockroach the partially digested food is stored.
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Rectum
Gizzard
Crop
Colon
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Question # 4
Water is dense than air
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800 times
1800 times
8000 times
80,000 times
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Question # 5
Bacteriophage replicates only in ____________ cells.
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Animal
Plant
Bacteria
None of these
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Question # 6
In Mollucs, a respiratory pigment of blue colour is present called.
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Haemoglobin
Haemocyanin
Haemoery thrin
None of these
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Question # 7
Pepsin is secreted by
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Mucous cell
Zymogen cell
Oxyntic cell
Parietal cell
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Question # 8
A quatic arthropods respire through
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Lungs
skin
Gills
Spiracles
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Question # 9
Hydra belongs to phylum
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Mollusca
Cridaria
Arthropoda
Annelida
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Question # 10
Which one of the copper containing proteins.
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Ferredoxin
Plastocyanin
Plastogulnone
Cytochromes
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Question # 11
Excretory organ in annelid are.
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Nephridia
Nephron
Flame cells
Malpighian tubule
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Question # 12
The condition in which biennial and perennial plants are stimulated to flower by exopod to low temperature is called.
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Photoperioclism
Vernalization
Apomixis
Partheiogenesis
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Question # 13
Movement of rearrangement of the cells in the embryo is called.
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Cleavage
Gastrulation
Fertilization
Organogenesis
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Question # 14
Crossing over and random assortment of chromosomes are two significant happenings of
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Mitosis
Amitosis
Meiosis
All a,b,and c
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Question # 15
In human, relay centre is located is
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Fore brain
Mid brain
spinal cord
Hind Brian
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Question # 16
In man the vestigial organs are
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Ear muscles
Nictitating membrane
Coccyx
All a,b and c
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Question # 17
1 g of ammonia nitrogen requires how much water for excretion.
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50 ml
250 ml
100 ml
500 ml
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Question # 18
Primary succession may start in a dry soil or rock is called.
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Hydrosere
Xerosere
Derosere
Desert
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Question # 19
Rapid aging and less resistance to environmental stress and diseases are limitations of.
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Parthenocarpy
Cloning
Phototropism
Verbalization
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Question # 20
Antidluretric hormone (ADH) released from posterior pituitary act to actively transport water from filtrate to kidney's
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Pelvis
Medulla
Cortex
Interstitium
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Question # 21
The children with "SCID" lack an enzyme.
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a galactosidase
Phenylalanine hydroxylase
Adenosine deaminase
Succinic dehydrogenase
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Question # 22
The most concentrated external environment is termed as.
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Hypotonic
Hypertonic
Osmotic
Isotonic
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