InterviewSolution
Saved Bookmarks
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.
| 3101. |
A tripeptide is written phenyl alanine,alanine and glycine. The correct structure of tripeptide isA. B. C. D. |
|
Answer» Correct Answer - D |
|
| 3102. |
How many different tripeptides can be obtained from alanine, glycine and phenylalanine, each tripeptide containing all the three amino acids?A. 8B. 6C. 7D. 5 |
|
Answer» Correct Answer - B `3 xx 2 xx 1 = 3 = 6` tripedes are possible if each is used only once : `AGF, AFG, GAF, GFA, FAG, FGA`. |
|
| 3103. |
A tripeptide oon complete hydrolysis gives glycine, alanine, and phenylanine,using three-letter symbols write down the possible sequences of the tripeptide. |
|
Answer» The possible combinations can be: (i). Gly-Ala-Phe, (ii). Gly-Phe-Ala (iii). Ala-Gly-Phe, (iv). Ala-Phe-Gly (v). Phe-Gly-Ala, (vi). Phe-Ala-Gly |
|
| 3104. |
A tripeptide on complete hydrolysis gives glycine, alanine and phenylalanine using three letter symbols .Write down the possible sequence of tripeptide. |
|
Answer» Each amino acid may be present at the N-terminal as well as C-terminal. (i) Gly-Ala-Gly (ii) Gly-Phe-Ala (iii) Ala-Gly-Phe (iv) Ala- Phe-Gly (v) Phe-Ala-Gly (vi) Phe-Gly-Ala |
|
| 3105. |
A decapeptide (Molecular weight 796) on complete hydrolysis gives glycine (Molecular weight 75), alanine and phenylanine. Glycine contributes 47.0 % to the total weight of the hydrolysed products. The number of glycine units present in the decapeptide is |
|
Answer» Correct Answer - `6` |
|
| 3106. |
Glycosidic linkage in maltose/amylose isA. `C_(1)-C_(4)` `beta` linkageB. `C_(1)-C_(6) beta` linkageC. `C_(1)-C_(6)alpha` -linkageD. `C_(1)-C_(4)alpha-`linkage |
| Answer» Correct Answer - D | |
| 3107. |
Which of the following base is not present in DNA ?A. ThymineB. QuinolineC. AdenineD. Cytosine |
|
Answer» Correct Answer - B DNA contains adenine (A), thymine (T), guanine (G) and cytosine (C) bases. |
|
| 3108. |
RNA isA. single helix strandB. double helix strandC. right hand twisted double helix strandD. triple helix strand |
|
Answer» Correct Answer - A RNA is a single helix structure in which sugar is linked to phosphate group and a base. |
|
| 3109. |
Which of the following is a sink for `CO`?A. HaemoglobinB. Microorganisms present in the soilC. OceansD. Plants |
|
Answer» Correct Answer - B Microorganisms present in the soil act as biggest source nad sink. A sink as a natural or artificial reservior that accumulates and stores some chemical compound for an indefinite period. Thus (b) is correct option. |
|
| 3110. |
Carbohydrate metabolism is controlled byA. parathormoneB. InsulinC. GlucoseD. Vitamin `B_(12)` |
| Answer» Correct Answer - B | |
| 3111. |
Which one of the following statements is not ture reagarding `(+)` Lactose ?A. `(+)` Lactose, `C_(12)H_(22)O_(11)` contains `8-OH` groupsB. On hydrolysis `(+)` Lactose gives equal amount of `D(+)` glucose and `D(+)` galactoseC. `(+)` Lactose is a `beta -` glucose and a molecle of `D(+)` galactoseD. `(+)` Lactose is a reducing sugar and does not exhibit mutarotation |
|
Answer» Correct Answer - D `(+)` Lactose on hydrolysis yields equal amount of `D(+)` glucose and `D(+)` galactose. These two monosachharides are joined by `beta-1,4-` glucosidic linkage. `(+)` Lactose contains hemiacetal group and thus reducing sugar. Also it exhibits mutarotation. |
|
| 3112. |
The vitamin which is water soluble ?A. vitamin DB. vitamin EC. vitamin AD. vitamin C |
|
Answer» Correct Answer - D vitamin C is soluble in water. Vitamin A ,D and E are not solube in water (they are oil soluble). |
|
| 3113. |
Which one of the following has no free aldehyde or ketone group ?A. FructoseB. MaltoseC. SucroseD. Galactose |
| Answer» Correct Answer - C | |
| 3114. |
A bond which is formed between aldehyde or ketone group of monosaccheride and alcoholic group of another organic compound is known asA. Peptide bondB. glycosidic bondC. phosphodiester bondD. Ester bond |
| Answer» Correct Answer - B | |
| 3115. |
The aldehyde which is formed during photosynthesis in plants isA. methanalB. acetaldehydeC. propanalD. phenyl methanal |
|
Answer» Correct Answer - A Methanol or formaldehyde (HCHO) is formed during photosynthesis is plants. |
|
| 3116. |
The structural feature which distinguishes proline from other natural `alpha`-amino acids isA. its is optically inactiveB. it contains aromatic groupC. it is a dicarboxylic acidD. it is secondary amine |
|
Answer» Correct Answer - D Proline is secondary amine |
|
| 3117. |
Which of the following food stuffs contains nitrogen?A. GlucoseB. FatsC. ProteinsD. None of these |
|
Answer» Correct Answer - C |
|
| 3118. |
Insulin isA. hormoneB. enzymeC. carbohydratesD. fat |
|
Answer» Correct Answer - A |
|
| 3119. |
Which is not a macromolecule?A. CelluloseB. DNAC. glycogenD. Cholesterol |
|
Answer» Correct Answer - D (D) Cellulose, DNA and glycogen all are macromolecules. |
|
| 3120. |
Keratin present in hair shows secondary structure known asA. parallel `beta`-sheetB. antiparallel `beta`-sheetC. `alpha`-helixD. none of these. |
|
Answer» Correct Answer - C `alpha`-helical colied secondary structure is found in several proteins, e.g., keratin, myosin, epidermin, fibrin, etc. |
|
| 3121. |
Keratin presen t in hair is,A. Fibrous proteinB. Globular proteinC. Denatured proteinD. Lipo protein |
|
Answer» Correct Answer - A |
|
| 3122. |
Keratin of hair hasA. Secondary structureB. a-Helical structureC. `beta `-pleated structureD. Primary structure |
| Answer» Correct Answer - B | |
| 3123. |
most of the blood proteins in our body areA. BasicB. AcidicC. NeutralD. Basic and Neutral |
| Answer» Correct Answer - B | |
| 3124. |
The most abundant chemical in living organisms could beA. proteinB. waterC. sugarD. nucleic acid. |
| Answer» Correct Answer - B | |
| 3125. |
The most abundant chemical in living organisms could beA. proteinB. waterC. sugarD. nucleic acid |
| Answer» Correct Answer - b | |
| 3126. |
The pair whose both species are used in acid medicinal preparation is:A. `NaHCO_(3)` and `Mg(OH)_(2)`B. `Na_(2)CO_(3)` and `Mg(OH)_(2)`C. `Ca(HCO_(3))_(2)` and `Mg(OH)_(2)`D. `Ca(OH)_(2)` and `NaHCO_(3)` |
|
Answer» Correct Answer - A Yellow fever was the first viral disease detected in human being. |
|
| 3127. |
Which of the following is a bacteriostaci?A. PenicillinB. ErythromycinC. AminoglycosideD. Ofloxacin |
|
Answer» Correct Answer - B Erythromycin is bacteriostatic (a drug which inhibits the growth of organism). |
|
| 3128. |
The insecticide, germicide, gammesane is a formulation for:A. `DDT`B. benzene hexachlorideC. hexachlorobenzeneD. chloral |
|
Answer» Correct Answer - B `gamma`-isomer of `BHC` is called gammexane. |
|
| 3129. |
Rhamnose has formulaA. `C_6H_(12)O_5`B. `C_5H_(10)O_4`C. `C_5H_(12)O_5`D. `C_5H_9O_5` |
|
Answer» Correct Answer - A |
|
| 3130. |
Assertion. Amount of DNA in a cell is fixed. Reason. Amount of RNA in a cell is variable.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 - B | |
| 3131. |
Assertion. A coenzyme or metal ion that is very tightly bound to enzyme protein called prosthetic group. Reason. A complete, catalytically active enzyme together with its bound prosthetic group is called apoenzyme.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 | |
| 3132. |
Consider the following statements: 1. Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group.2. A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme. Select the correct option. (A) Both (i) and (ii) are false. (B) (i) is false but (ii) is true. (C) Both (i) and (ii) are true. (D) (i) is true but (ii) is false. |
|
Answer» (D) (i) is true but (ii) is false. |
|
| 3133. |
Name the Polysaccharide present in human liver. |
|
Answer» Glycogen present in human liver. |
|
| 3134. |
Which polysaccharide is store in the liver of animals ? |
|
Answer» Polysaccharide stored in the liver of animals is glycogen. |
|
| 3135. |
Fill in the blanks.(1) In a polysaccharide ……………is the reducing end and is the nonreducing end.(2) Metabolic pathways that lead to complex from the simpler structure is called ………….. pathway.(3) The most important form of energy in living systems is ……………….(4) In our skeletal muscle, under anaerobic conditions acid is formed and under aerobic conditions ………….. acid is formed. |
|
Answer» 1. Right end, left end 2. anabolic 3. Adenosine triphosphate (ATP) 3. Lactic, Pyruvic |
|
| 3136. |
A polysaccharide, which is synthesised and stored in liver cells isA. lactoseB. galactoseC. arabinoseD. glycogen |
|
Answer» Correct Answer - D Glycogen is a storage, homopolysaccharides with digestable branched chain. Glycogen is synthesised from glucose through glycogenesis and is stored in hepatic cells of liver and muscles in human body. When needed, glycogen is hydrolysed to form glucose through glycogenolysis and released into blood stream. |
|
| 3137. |
Study the given statements and select the correct answer. (i) Right end of a polysaccharide chain is called reducing end while left end is called non-reducing end. (ii) Starch can hold cellulose being non-helical, cannot hold iodine. (iii) Starch and glycogen are branched molecules. (iv) Starch and glycogen are the reserve food materials of plants and animals, respectively.A. Statements (i) and (ii) are correct.B. Statements (ii) and (iii) are correct.C. Only statement (iv) is correct.D. All statements are correct. |
| Answer» Correct Answer - D | |
| 3138. |
Cellulose is a straight-chain polysaccharide conposed of only:A. D-glucose units joined by `alpha`-glycoside linkageB. D-glucose units joined by `beta`-glycosidic linkageC. D-galactose units joined by `alpha`-glycodisic linkageD. D-galactose units joined by `beta`-glycosidic linkage |
| Answer» Correct Answer - B | |
| 3139. |
Cellulose is a straight-chain polysaccharide composed of only:A. `D-`Glucose units joined by `alpha-`glycosidic linkage.B. `D-`Glucose units joined by `beta-`glycosidic linkage.C. `D-`Glucose units joined by `alpha-`glycosidic linkage.D. `D-`Glucose units joined by `beta-`glycosidic linkage. |
| Answer» Correct Answer - B | |
| 3140. |
Carbohydrates are stored in human body as the polysaccharide:A. StarchB. GlucoseC. GlycogenD. Galactose |
| Answer» Correct Answer - C | |
| 3141. |
Which of the following is an animal polysaccharide?A. AmyloseB. CelloseC. GlycogeneD. pectin |
|
Answer» Correct Answer - C |
|
| 3142. |
The intermediate compound in the conversion of starch to glucose is:A. maltoseB. lactoseC. sucroseD. Fructose |
|
Answer» Correct Answer - A |
|
| 3143. |
According to Cargaff’s rule, A : T = G : C = …………… . (a) 0 (b) 1 (c) >1 (d) <1 |
|
Answer» According to Cargaff’s rule, A : T = G : C =1. |
|
| 3144. |
A complete turn of the helix comprises …………… . (a) 34 nm (b) 3.4 nm(c) 20 nm (d) 2nm |
|
Answer» A complete turn of the helix comprises 3.4 nm. |
|
| 3145. |
Diameter of DNA helix is …………… . (a) 34 Å (b) 20 nm (c) 34 nm (d) 20 Å |
|
Answer» Diameter of DNA helix is 20 Å. |
|
| 3146. |
Out of the following, which is not a property of enzymes?(A) Specific in nature(B) Proteinaceous(C) Used up in reaction(D) Increased rate of biochemical reaction |
|
Answer» The correct answer is (C) Used up in reaction The correct option is (C) used up in reaction. (C) Used up in reaction is correct answer
|
|
| 3147. |
Smallest RNA is (A) t-RNA (B) m-RNA (C) r-RNA (D) not specific |
|
Answer» The correct answer is (A) t-RNA |
|
| 3148. |
Long chain molecules of fatty acids are formed byA. Polymerization of carbon ompoundsB. Decompostition of fatsC. Polymerization of glycogenD. Conversion of glycogen |
| Answer» Correct Answer - A | |
| 3149. |
Milk protein isA. LactogenB. MyosinC. CaseinD. Pepsin |
| Answer» Correct Answer - C | |
| 3150. |
Write two functions of Lipids. |
|
Answer» ’They function as reserve food material in living organisms. They provide a rich source of energy. |
|