Biology MCQs

Page No. 93

Cn(H2O)n. is a general formula of_____________?


aMonosaccharides


bOligosaccharides


cPloysacharides


dCarbohydrates


View Answer Carbohydrates

Specific heat of vaporization of water is_______________?


a574 Kcal/kg


b674 Kcal/kg


c774 Kcal/kg


d874 Kcal/kg


View Answer 574 Kcal/kg

A complex substance which on hydrolysis yields polyhydroxy aldehyde or ketone subunits is called__________?


aLipid


bCarbohydrate


cProtein


dCarotein


View Answer Carbohydrate

Which of the statement is not true for compounds like glycoprotein and glycolipids____________?


aThey are conjugated molecules of carbohydrates


bBoth have role in the extra cellular matrix of animals and bacterial cell wall


cThey are components of biological membranes.


dBoth are produced and secreted by endoplasmic reticulum



Which of the following carbohydrate is tasteless___________?


aMonosaccharide


bOligosaccharide


cPolysaccharide


dNone of these


View Answer Polysaccharide

Which statement is true about an aqueous medium________________?


aIonic as well as non ionic substance in aqueous media retains their identity


bEnzymes can not perform catalysis reaction in this medium


cIons and molecules move randomly thus are in more favorable state to react with other molecules and ions


dIt is less favorable media for chemical reactions



Maximum number of species of living things on earth are___________?


aAlgae


bFungi


cInsects


dProtozoa


View Answer Insects

Which of the following substance is most favorable to form structural component of biological membranes___________?


aHydrophilic Carbohydrates


bHydrophobic fats.


cBoth a and b


dNone of these


View Answer Hydrophobic fats.

The mechanism of stomatal movement is related to the branch of Biology called__________?


aTaxonomy


bPhysiology


cMorphology


dAnatomy


View Answer Physiology

The one which is present in all living things is ___________?


aCell nucleus


bDNA or RNA


cCell membrane


dVacuole


View Answer DNA or RNA

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