InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1651. |
Identify the polysaccharide with `beta`-glycosidic bondsA. StarchB. GlycogenC. SucroseD. Cellulose |
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Answer» Correct Answer - D (D) A polysaccharides having `beta`-glycosidic bonds is cellulose. |
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| 1652. |
Insulin is a/anA. LipidB. CabohydrateC. ProteinD. Nucleic acid |
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Answer» Correct Answer - C (C) Insulin ( hormone) is a protein. |
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| 1653. |
Which of the following fatty acids is liquid at room temperatureA. Palmitic acidB. Stearic acidC. Arachidic acidD. Linoleic acid |
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Answer» Correct Answer - D (D) Linoeic acid is liquid at room temperature. |
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| 1654. |
why sucrose and not glucose is used to preserve fruit products ?A. Glucose is reactive as it has free CHO groupB. Sucrose is more common in natureC. Sucrose is easily available and has both glucose and fructosD. None of the above |
| Answer» Correct Answer - A | |
| 1655. |
In ATP sugar isA. riboseB. deoxyriboseC. glucoseD. trioses |
| Answer» Correct Answer - A | |
| 1656. |
The disaccharide that is constituted of two glucose units isA. sucroseB. lactoseC. maltoseD. cellobiose |
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Answer» Correct Answer - D Disaccharide, maltose is composed of two `alpha-D-` glucose units in which `C1` is of one glucose is linked to `C4` of another glucose unit. In solution, the free aldehyde group can be produced at `C1` of second glucose in solution, hence maltose shows reducing properties. Partial hydrolysis of cellulose (cotton fibres) gives the disaccharise cellobiose, `C_(12) H_(22) O_(11)`, which resembles maltose in every respect except one: configuration of its glycosidic linkage. Cellobiose, like maltose, is a reducing sugur, forms an osazone, exists in alpha and beta forms that undergo mutarotation and on acid-catalyzed hydrolysis, yields two molar equivalents of `D-(+)-` glucose. The sequence of oxidation (with `Br_(2)//H_(2) O)`, methylation (with `Me_(2) SO_(4), NaOH)` and hydrolysis `(H_(2) O, H^(+))` shows that `C1` of one glucose unit is connected in glycosidic linkage with `C4` of the other and that both rings are six membered. `(+)-` Cellobiose differs from `(+)-` maltose in one respect: it is hydrolyzed by the enzyme emulsin (from bitter almonds), not by maltose, Since emulsion is known to hydrolyze only `beta`-glucoside linkages, we can conclude that the structue of `(+)-` cellobiose differs from that of `(+)-` maltose in only one resect: the D-glucose units are joined by a beta linkage rather than by an alpha linkage. |
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| 1657. |
Maltose an hydrolysis producesA. `beta`-D-glucoseB. `alpha`-D-glucoseC. `beta`-D-fructoseD. `alpha`-D-fructose |
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Answer» Correct Answer - B |
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| 1658. |
Find the hydrolysis product of maltose.A. `alpha-D-` glucose `+alpha -D-`glucoseB. `alpha-D-`glucose `+alpha-D-`fructoseC. `alpha-D-`glucose `+alpha-D-`galactoseD. `alpha-D-`fructose`+alpha-D-`galactose |
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Answer» Correct Answer - A `underset("Maltose")( C_(12)H_(22)O_(11))+H_(2)O overset(H^(+))underset(or" maltase")rarrunderset("Glucose")(C_(6)H_(12)O_(6))+underset(Gluc ose)(C_(6)H_(12)O_(6))` |
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| 1659. |
What are the products of hydrolysis of sucrose ? |
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Answer» Fructose and Glucose are the products of hydrolysis of sucrose. |
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| 1660. |
Assertion `:` Anti histammin does not effect secration of acid in stomach `:` Reason `:` Anti Histamine and antacids work on different receptors.A. If both the assertion and reacons are true and reason is a true explanation of the assertion.B. If both the assertion and reasons are true but the reason is not the correct explanation of assertion.C. If the assertion is ture but reason is false.D. If assertion is false but reasion is true. |
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Answer» Correct Answer - A a |
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| 1661. |
The main structural feature of a protein molecule is the presence of :(a) an ester linkage (b) an ether linkage (c) a peptide linkage (d) all of these |
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Answer» Option : (c) a peptide linkage |
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| 1662. |
A biological catalyst is essentially :(a) an amino acid (b) an enzyme (c) a nitrogen molecule (d) a carbohydrate |
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Answer» Option : (d) a carbohydrate |
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| 1663. |
Which one of the following is NOT produced by human body ?(a) DNA (b) Hormones (c) Enzymes (d) Vitamins |
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Answer» Option : (c) Enzymes |
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| 1664. |
The carbohydrates used for silvering of mirror is :(a) fructose (b) starch (c) glucose (d) cellulose |
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Answer» Option : (c) glucose |
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| 1665. |
The water insoluble protein is :(a) casein of milk (b) albumin (c) serum albumin (d) keratin of hair |
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Answer» Option : (d) keratin of hair |
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| 1666. |
Assertion. Enzymes becomes inactive below minimum temperature. Reason. The inactivity of the enzymes is due to denaturation.A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.C. If Assertion is true but the Reason is false.D. If both Assertion and Reason are false. |
| Answer» Correct Answer - C | |
| 1667. |
Assertion. The total content of iron in an adult body is 3.5 gram. The iron deficiency lead to anaemis. Reason. Iron `(Fe^(2+))` combines with the pigment porphyrin to form heme.A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.C. If Assertion is true but the Reason is false.D. If both Assertion and Reason are false. |
| Answer» Correct Answer - A | |
| 1668. |
Gibberellins and Cytokines areA. rocket propellantsB. dyesC. plant growth hormonesD. None of the above |
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Answer» Correct Answer - C These are plant growth hormones. |
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| 1669. |
Which of the following is not a broad spectrum anitbiotic?A. tetracyclineB. ChloromycetinC. PenicillinD. None of these |
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Answer» Correct Answer - C Penicillin is not a broad spectrum antibiotic. It is `beta`-lactam antibiotic. |
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| 1670. |
4-chloro-3, 5-dimethyl phenol is calledA. DettolB. barbitalC. paracetamolD. aspirin |
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Answer» Correct Answer - A Chloroxylenol a constituent of `Dettol. |
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| 1671. |
Which one of the following create great and high preformance in a missile?A. microalloyed goldB. cryogenic liquidC. carbon fibresD. butylated hydroxyl anisole |
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Answer» Correct Answer - B Cryogenic liquid. |
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| 1672. |
(a) Write the structures of alanine at `pH = 2` and `pH = 10` (b) Identify `A,B` and `C` and given their structures. . |
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Answer» Correct Answer - (a) `CH_(3)-underset(underset(NH_(2)("Alanine"))(|))(CH)-COOH` `P^(H)=2` (Basic group is ionised) `overset("Structure of alanine pH=10")(CH_(3)-underset(underset(.^(oplus)NH_(3))(|))(CH)-COO^(-))` `P^(11) =10` (Acidic group in ionised) `overset("Structure of alanine pH=10")(CH_(3)-underset(underset(.^(NH_(3)))(|))(CH)-COO^(-))`. |
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| 1673. |
Genetic information in a DNA molecule is coded in theA. sequence of nucleotidesB. base pairingC. turning pattern of helixD. distance between base pairs |
| Answer» Correct Answer - A | |
| 1674. |
DNA is present inA. E.R. and ribosomesB. ribosomes and chloroplastsC. ribosomes and mitochondriaD. mitochondria and chloroplastis |
| Answer» Correct Answer - D | |
| 1675. |
Protein denaturation takes place by the activity of Or Enzymes are sensitive toA. WaterB. HeatC. EnzymeD. Pressure |
| Answer» Correct Answer - B | |
| 1676. |
Match the following with correct combination `|{:("Column - I","Column - II"),(A."Triglycerides",1."Galactose"),(B."Lactose",2."Glycerol"),(C."RNA",3."Palmitic acid"),(D.beta"pleats",4."Uracil"),(E."Beewax",5."Secondary structure"):}|`A. A - 4, B - 1, C - 5, D - 2, E - 3B. A - 5, B - 1, C - 4, D - 2, E - 3C. A - 3, B - 1, C - 4, D - 5, E - 2D. A - 2, B - 1, C - 4, D - 5, E - 3 |
| Answer» Correct Answer - D | |
| 1677. |
In double helix of DNA, the two DNA strands areA. coiled upon itself around a common axisB. coiled around each otherC. coiled differentlyD. coiled over protein sheath |
| Answer» Correct Answer - A | |
| 1678. |
The smallest RNA is :-A. tRNAB. mRNAC. rRNAD. genetic RNA |
| Answer» Correct Answer - A | |
| 1679. |
Digetive enzymes areA. HydrolasesB. TransferasesC. OxidoreductasesD. Ligases |
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Answer» Correct Answer - A (A) Digestive enzmes are hydrolases. |
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| 1680. |
Which is not a protein ?A. `alpha`-amylaseB. NitrogenaseC. Histidine KinaseD. Ribozyme |
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Answer» Correct Answer - D (D) Ribozyme is not a protein. |
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| 1681. |
Ribose sugar is not a component ofA. AMPB. ATPC. DNAD. RNA |
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Answer» Correct Answer - C ( C) Ribose sugar is not a component of DNA |
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| 1682. |
NAD isA. Nicotinamide adenosine diphosphateB. Nicotine adenosine phosphateC. Nicotinamide adenine dinucleotideD. None of the above. |
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Answer» Correct Answer - C (C) NAD is nicotinamide adenine dinuclotide |
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| 1683. |
An essential fatty acids isA. Plamitic acidB. Arachidonic acidC. Stearic acidD. Arachidic acid |
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Answer» Correct Answer - B (B) An essential fatty acid is arachidonic acid. |
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| 1684. |
Which one of the following is wrongly matchedA. Fungi-ChitinB. Phospholipid - Plasma membraneC. Enzyme- LipopolysaccharideD. ATP- Nucleotide derivative |
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Answer» Correct Answer - C ( C) Fungi- Chitin Phospholipid-Plasma membrane Enzyme-Protein ATP- Nucleotide derivative |
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| 1685. |
Holoenzyme is produced byA. Combined coenzyme and apoenzymeB. Only prosthetic groupC. Only proteinD. Only cofactor |
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Answer» Correct Answer - A (A) Holoenzyme is produced by combined coenzyme and apoenzyme. |
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| 1686. |
Energy is stored in the liver and muscles in the form of " " Or In the muscles carbohydrates are stored in the form ofA. FatB. ProteinC. GlycogenD. Glucose |
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Answer» Correct Answer - C ( C) Energy is stored in liver and muscles ar glycogen. |
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| 1687. |
Glucose and galactose areA. AnomersB. optical isomersC. epimersD. none of these |
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Answer» Correct Answer - C Glucose and galactose differ at C-4 position and hence are `C_(4)` epimers. |
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| 1688. |
Carbohydrates are stored in the body asA. sugarB. starchC. GlucoseD. glycogen |
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Answer» Correct Answer - D |
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| 1689. |
The disaccharide present in milk isA. SucroseB. MaltoseC. GalactoseD. Lactose |
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Answer» Correct Answer - D |
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| 1690. |
The disaccharide present in milk isA. SucroseB. MaltoseC. LactoseD. Celluboise. |
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Answer» Correct Answer - C The disaccharide present in milk is lactose. |
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| 1691. |
Which of the following is a disaccharideA. lactoseB. starchC. celluloseD. fructose |
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Answer» Correct Answer - A Lactose is milk sugar the end products of hydrolysis of proteins. |
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| 1692. |
The disaccharide present in milk is :A. sucroseB. maltoseC. lactoseD. cellobiose |
| Answer» Correct Answer - C | |
| 1693. |
Three of the following statements about enzymes are correct and one is wrong. Which one is wrongA. Enzymes require optimum pH for maximal activity.B. Most enzymes are proteins but some are lipids.C. Enzymes are highly specific.D. Enzymes are denatured at high temperature but in certain exceptional organisms they are effective even at temperature `80^(@) - 90^(@)C`. |
| Answer» Correct Answer - B | |
| 1694. |
Which of the following is an analgesic?A. PenicilinB. StreptomycinC. ChloromycetinD. Novalgin |
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Answer» Correct Answer - D Novalgin (Dipyrone) is a non-narcotic analgesic used as pain reliever. Penicilin is an antibiotic used for curing rheumatic fever. Streptomycin is an antibiotic drug. Chlormycetin is an antibiotic drug. |
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| 1695. |
Which of the following statements is not correctA. Ovalbumin is a simple food reserve in egg`-` whiteB. Blood proteins thrombin and fibrinogen are involved in blood clottingC. Denaturation makes the proteins more activeD. Insulin maintains sugar level in the blood of a human body. |
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Answer» Correct Answer - C Due to denaturation of proteins, globules unfold and helix get unccoiled and protein loses its biological activity. |
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| 1696. |
Which of the following of analgesic ?A. ChloromycetinB. NovalginC. PenicillinD. Streptomycin |
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Answer» Correct Answer - B Novalgin is an analgesic. It is a fact. |
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| 1697. |
Mixture of chloroxylenol and terpineol acts as `:`A. antisepticB. antipyreticC. antibioticD. analgesic |
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Answer» Correct Answer - A Antiseptic `(` dettol `)` |
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| 1698. |
Which of the following is responsible for the mechanical support, protein synthesis and enzyme transport?(a) cell membrane (b) mitochondria (c) dictyosomes (d) endoplasmic reticulum |
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Answer» (d) endoplasmic reticulum |
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| 1699. |
Omnis – cellula – e – cellula was given by …………… . (a) Virchow (b) Hooke (c) Leeuwenhoek (d) Robert Brown |
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Answer» Omnis – cellula – e – cellula was given by Virchow . |
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| 1700. |
Specific proteins responsible for the flow of materials and information into the cellare called ……. (a) Membrane receptors (b) carrier proteins (c) integral proteins (d) none of these |
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Answer» (b) carrier proteins |
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