Biology MCQs

Page No. 87

The simplest of oxygen producting photosynthetic organisms are____________?


aAlgae


bBacteria


cCyanobacteria


dChlamydomonas


View Answer Cyanobacteria

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


aGlobular proteins


bFibrous Proteins


cBoth a and b


dNone of these


View Answer Globular proteins

Membranes of the grane are sites where?


aOxygen is stored


bFood is stored


cSunlight is trapped


dCO2 is stored.


View Answer Sunlight is trapped

Each turn of DNA contain ____________ nitrogenous base pairs?


a5


b10


c20


d25


View Answer 10

Protein coasts of viruses are synthesized in____________?


aLytic cycle


bLysogenic cycle


cBoth a & b


dAll of these


View Answer Lytic cycle

Which of the following statement is incorrect about RNA_________________?


aThe pentose sugar in it is Ribose.


bIt contains Adenine Guanine Thymine and Cytosine


cIt is present in the nucleoli


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



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


aHydrophobic


bHydrophilic


cBasic


dNone of these


View Answer Hydrophobic

Yeasts reproduce asexually by forming____________?


aAsci


bBasidia


cBoth a & b


dBuds


View Answer Buds

Hemoglobin molecule exhibits which structural organization of proteins___________?


aPrimary structure


bSecondary structure


cTertiary structure


dQuaternary structure


View Answer Quaternary structure

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


aAmoebas


bZooflagellates


cCiliates


dApicomplexans


View Answer Apicomplexans

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