Biology MCQs

Page No. 93

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


aMonosaccharides

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bOligosaccharides

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cPloysacharides

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dCarbohydrates

✓


View Answer Carbohydrates

Specific heat of vaporization of water is_______________?


a574 Kcal/kg

✓


b674 Kcal/kg

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c774 Kcal/kg

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d874 Kcal/kg

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View Answer 574 Kcal/kg

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


aLipid

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bCarbohydrate

✓


cProtein

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dCarotein

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View Answer Carbohydrate

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


aThey are conjugated molecules of carbohydrates

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

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cThey are components of biological membranes.

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dBoth are produced and secreted by endoplasmic reticulum

✓



Which of the following carbohydrate is tasteless___________?


aMonosaccharide

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bOligosaccharide

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cPolysaccharide

✓


dNone of these

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View Answer Polysaccharide

Which statement is true about an aqueous medium________________?


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

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bEnzymes can not perform catalysis reaction in this medium

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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

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Maximum number of species of living things on earth are___________?


aAlgae

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bFungi

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cInsects

✓


dProtozoa

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View Answer Insects

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


aHydrophilic Carbohydrates

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bHydrophobic fats.

✓


cBoth a and b

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dNone of these

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View Answer Hydrophobic fats.

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


aTaxonomy

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bPhysiology

✓


cMorphology

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dAnatomy

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View Answer Physiology

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


aCell nucleus

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bDNA or RNA

✓


cCell membrane

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dVacuole

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View Answer DNA or RNA

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