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Biology Life Science Test Medium Mode MCQs With Answers
Question # 1
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 # 2
The active site of an enzyme
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Never changes
Forms no chemical bond with substrate
Determines by its structure the specificity of an enzyme
Looks like a lump projection from the surface of an enzyme
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Question # 3
After fertilization ________ischanged into a seed.
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Fruit
Flower
Ovule
Overly
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Question # 4
The renal veins bring the impure blood form.
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Kidney
Lungs
Brain
Liver
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Question # 5
Irreversible inhibitors form which bonds active site.
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Hydrogen bonds
Covalent bonds
Ionic bonds
Hydrophobic bond
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Question # 6
A virion is
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Virus
Viral protein
Viral lysozyme
Viral gene
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Question # 7
All are made up of cartilage except
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Trachea
Bronchiole
Larynx
Bronchi
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Question # 8
Pili are made up of special protein called.
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Pillin
Flagellin
Tubullin
Myosin
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Question # 9
Influenza viruses are.
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DNA Naked
DNA enveloped
RNA enveloped
RNA naked
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Question # 10
Helical shape of polypeptide is due to present within molecule.
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Covalent bond
Hydrogen bond
Disulphide bond
Peptide bond
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Question # 11
From one pyruvate passing through Krebs cycle how many FADH2 molecules are formed.
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01
02
03
04
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Question # 12
Animals inhabiting environment with acute shortage water excrete
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Ammonia
Uric acid
Allantion
Urea
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Question # 13
Of all the excretory products, the principal one is.
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Ammonia
Urea
Uric Acid
Billrubin
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Question # 14
In natural selection, the environment plays role affecting the proportions of gene in .
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Population
Community
Area
Blome
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Question # 15
The spread of tumor cells and establishment of secondary area of growth is known as.
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Necrosis
Apoptosis
Metastasis
Epigenesis
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Question # 16
Endosymbiont hypothesis was proposed by.
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Wallace
Lamarck
Lynn Margulis
Linnaeus
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Question # 17
Tundra ecosystem is located on Mountains
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Kara-koram
Hindukush
Salman
Both a & b
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Question # 18
A full set of genes of an individual is called.
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Genome
Genotype
Karyotype
Dominance
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Question # 19
Sunkens stomata are found in which of the following group of plants.
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Hydrophytes
xerophytes
Bryophytes
Mesophytes
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Question # 20
The internal hydrostatic pressure in plants is.
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Root
Turgor
Osmotic
Solute
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Question # 21
A pair of kidneys consists of millons of functional units called
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Nephrons
Neurons
Dendrons
Flatirons
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Question # 22
The human embryo is referred to as the fetus from beginning of.
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3rd month
3rd week
6th months
6th week
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