Biology MCQs

Page No. 87

The simplest of oxygen producting photosynthetic organisms are____________?


aAlgae

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bBacteria

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cCyanobacteria

✓


dChlamydomonas

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View Answer Cyanobacteria

Antibodies play important role against microorganisms and other pathogens to which type of proteins do they belong________?


aGlobular proteins

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bFibrous Proteins

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cBoth a and b

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dNone of these

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View Answer Globular proteins

Membranes of the grane are sites where?


aOxygen is stored

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bFood is stored

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cSunlight is trapped

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dCO2 is stored.

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View Answer Sunlight is trapped

Each turn of DNA contain ____________ nitrogenous base pairs?


a5

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b10

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c20

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d25

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View Answer 10

Protein coasts of viruses are synthesized in____________?


aLytic cycle

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bLysogenic cycle

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cBoth a & b

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dAll of these

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View Answer Lytic cycle

Which of the following statement is incorrect about RNA_________________?


aThe pentose sugar in it is Ribose.

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bIt contains Adenine Guanine Thymine and Cytosine

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cIt is present in the nucleoli

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dIt may be folded back on itself to give double helical characteristics.

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In an aqueous environment the most stable tertiary conformation is that in which _________ amino acids are buried inside the conformation?


aHydrophobic

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bHydrophilic

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cBasic

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dNone of these

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View Answer Hydrophobic

Yeasts reproduce asexually by forming____________?


aAsci

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bBasidia

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cBoth a & b

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dBuds

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View Answer Buds

Hemoglobin molecule exhibits which structural organization of proteins___________?


aPrimary structure

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bSecondary structure

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cTertiary structure

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dQuaternary structure

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View Answer Quaternary structure

Locomotory structures are not found in which of the following group?


aAmoebas

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bZooflagellates

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cCiliates

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dApicomplexans

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View Answer Apicomplexans

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