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Biology 9th Class Urdu Medium Online Test MCQs With Answers
Question # 1
The branch deals with the study of the interrelationship of organism and their envirronment is called.
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Environmental Biology
Biotehnology
Molecular biology
Entomology
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Question # 2
In which phase of cell cycle, the chromosomes duplicate.
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S Phase
G1 Phase
Mitosis
G2 Phase
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Question # 3
Which element is requried by plants for the formationof chlorophyII.
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Magnesium
Phosphorus
Calcium
Suphur
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Question # 4
The site of enzyme synthesis in cell in
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Ribosomes
Golgi bodies
Lysosome
Smooth endoplasmic reticulum
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Question # 5
The bioconcave disc shape of red blood cells is advantageous for
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Oxygen transport
Carbon dioxide storage
Nucleus protection
Muscle contrations
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Question # 6
All the nucleotides of RNA differ from the nucleotides of DNA in having different
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Nitrogen base
Phosphate group
Pentose sugar, nitrogen base
Carboxylic group
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Question # 7
The other name of environmental biology is
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Ecology
Biotechnology
Microbiology
Cell biology
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Question # 8
At which level of organization gas exchage occurs between body and environment.
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Organ system level in the respiratory system
Oranelle level in mitochondria
Cellular level in alveolar cells
Tissue level in epithelial tissues
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Question # 9
Changes in pH can alter the active site by affecting the
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Shape of substrate
Ionization of amino acids
Ionization of cofactor
Ionizaation of co enzyme
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Question # 10
What ar ethe roles of stomata in plants.
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Water absorption
Gaseous exchange
Transporation
Nutrient uptake
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Question # 11
According to pressur e-flow theory one of the following is not a sink
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Leaves
Fruits
Root
Stem tubers
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Question # 12
In a leaf, which tissue is primarily responsible for photosynthesis.
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Phloem
Xylem
Mesophyll
Epidermis
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Question # 13
All prokaryotic organisms are included in kingdom.
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Eubacteria
Archaebacteria
Fungi
Both A and B
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