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Biology Life Science Test Medium Mode MCQs With Answers
Question # 1
Margulis and Schwartz have listed ...... phyla of protista
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Twenty three
Twenty five
Twenty seven
Twenty nine
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Question # 2
the hind limb of birds is modified for.
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Walking
Perching
Running
Flying
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Question # 3
In the citric acid cycle acetyle COA reacts with oxaloacetate to form
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Pyruvate
ATP
NADH
Citrate
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Question # 4
The enzyme with optimum pH 5.50 is
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Arginase
Sucrase
pepsin
Enter kinase
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Question # 5
A heterosporous plant is one that
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Produces a gametophyte that bears both sex organs
Produces megaspores and microspores in separaue sporangia, giving rise to separate male and female gametophyte
Is a seedless vascular plant
Produces two types of spores, one asexually by mitosis, and one type by meiosis
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Question # 6
Most vitamins function as
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Catalyst
High energy compounds
Gastrovascular cavity
Transport molecules
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Question # 7
Absorption of blue light is maximum at
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430 nm
550 nm
750 nm
670 nm
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Question # 8
Lymph most closely resemble with
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Blood
Plasma
Interstitial fluid
Urine
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Question # 9
The carbohydrate digesting enzyme in pancreatic juice is
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Lipase
Amylase
Erypsin
Trypsin
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Question # 10
The volume of air taken inside the lungs and expelled during exercise is about
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2.5 liters
3.5 liters
4.5 liters
1.5 liters
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Question # 11
The activation energy of the reaction is lowered by
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Co enzyme
Enzyme
Product
Substrate
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Question # 12
The chromatin material gets condensed by folding and chromosomes appear as thin thread in mitosis at the beginning of.
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Inter phase
Pro phase
Ana phase
Meta phase
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Question # 13
The most toxic substance routinely found in the blood are metabolities of what type of molecule?
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Proteins
Carbohydrates
Nucleic acids
Fats
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Question # 14
80% haemophiliacs suffer from haemophilia A due to abnormality of factor
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VIII
IX
X
XI
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Question # 15
The microtubules of mitotic apparatus are composed of protein tubulin nd traces of.
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DNA
RNA
Lipids
Terpenoids
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Question # 16
The hormones which controls the development of male secondary sexual characteristics during puberty is.
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Progesterone
Testosterone
Estrogen
Thyroxin
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Question # 17
Chromosomes appear inside the nucleus at the time of.
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Cell division
Cell maturation
Cell elongation
Cell differentiation
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Question # 18
The armored mammal that lives only in America is the.
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Armadillo
Echidna
Pengun
Pelvis and leg bones
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Question # 19
In grassland ecosystem annual rainfall is about 250 to
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350 mm
450 mm
650 mm
750 mm
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Question # 20
Only 30% of the earth is dry land the remainder being covered with
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Water
Air
Trees
Grass
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Question # 21
P660 is quiescent from, is converted to active p 730 by the absorption of.
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Blue light
Red light
Orange light
Yellow light
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Question # 22
Endosymbiont hypothesis was proposed by.
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Wallace
Lamarck
Lynn Margulis
Linnaeus
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