McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: All India Pre Medical Test (AIPMT) .
Chapters
| 251. |
Aspartic acid and lysine are linkage each other with which bond: |
| A. | Ester bond |
| B. | Glycoside bond |
| C. | Phosphodiaster bond |
| D. | Peptide bond |
| Answer» D. Peptide bond | |
| 252. |
Match column – I and column –II and select the correct option:
|
| A. | iii iv ii i |
| B. | ii I iv iii |
| C. | I iv ii iii |
| D. | iii ii iv i |
| Answer» A. iii iv ii i | |
| 253. |
Amino acids are attached each other with which bond? |
| A. | Ester bonds |
| B. | Hydrogen bonds |
| C. | Sulphur bonds |
| D. | peptide bonds |
| Answer» D. peptide bonds | |
| 254. |
Dipeptide means: |
| A. | Two similar amino acids attached by peptide bond |
| B. | Two dissimilar amino acids attached by peptide bond |
| C. | Two similar or dissimilar amino acids attached by peptide bond |
| D. | Two similar or dissimilar proteins attached by peptide bond |
| Answer» C. Two similar or dissimilar amino acids attached by peptide bond | |
| 255. |
Which macromolecule is the most diverse in cell and controlling biochemical Properties? |
| A. | Polynucleotide |
| B. | Polysaccharide |
| C. | Polypeptide |
| D. | polysomes |
| Answer» C. Polypeptide | |
| 256. |
The primary structure of proteins is due to |
| A. | Ionic bonds |
| B. | Peptide bonds |
| C. | Hydrogen bond |
| D. | S-S Linkages |
| Answer» B. Peptide bonds | |
| 257. |
Proteins means |
| A. | Micromolecule |
| B. | Macromolecule |
| C. | Soluble |
| D. | Colloidal |
| Answer» B. Macromolecule | |
| 258. |
The structure of protein can be denatured by |
| A. | At high temperature |
| B. | In dilute solution of acid |
| C. | In the presence of CO2 |
| D. | a, b, c all |
| Answer» A. At high temperature | |
| 259. |
Polypeptide means: |
| A. | A polypeptide chain is formed by more than two nucleotides |
| B. | A polypeptide chains is formed by more than two amino acids |
| C. | A polypeptide chains is formed by many similar amino acids |
| D. | A polypeptide chain is formed by many similar nucleotides |
| Answer» B. A polypeptide chains is formed by more than two amino acids | |
| 260. |
Which bimolecular fights against infectious organisms? |
| A. | Lipid |
| B. | Nucleic acid |
| C. | Protein |
| D. | Enzyme |
| Answer» C. Protein | |
| 261. |
Which one of the following is an amphoteric compound? |
| A. | Fatty acid |
| B. | Glutamic acid |
| C. | Nucleic acid |
| D. | Cellulose |
| Answer» B. Glutamic acid | |
| 262. |
Proteins Consist which one of the following |
| A. | One polypeptide |
| B. | One polypeptide chain |
| C. | One or more polypeptide chain |
| D. | One and other – chain |
| Answer» C. One or more polypeptide chain | |
| 263. |
Which one of the following statement about amino acid is incorrect? |
| A. | They are classified on the basis of the ‘R’ group |
| B. | The structure of almost all amino acids are similar except their ‘R’ group |
| C. | All protein molecules are a heteropolymer of amino acid |
| D. | They are very important compounds of cytoplasm |
| Answer» D. They are very important compounds of cytoplasm | |
| 264. |
Which of the following process is formed by – COOH linked to – NH2 (peptide bond) |
| A. | Hydrogenation |
| B. | Dehydrogenation |
| C. | Reduction |
| D. | Oxidation |
| Answer» B. Dehydrogenation | |
| 265. |
End of every polypeptide chain is known as: |
| A. | Template |
| B. | Signal |
| C. | Antenna |
| D. | Terminal |
| Answer» D. Terminal | |
| 266. |
Which are the terminals of polypeptide chain? |
| A. | ‘R’ and ‘N’ terminal |
| B. | ‘P’ and ‘R’ terminal |
| C. | ‘H’ and ‘N’ terminal |
| D. | ‘N’ and ‘C’ terminal |
| Answer» D. ‘N’ and ‘C’ terminal | |
| 267. |
The secondary structure of protein means |
| A. | The flat and sheet like polypeptide chain |
| B. | The helically coilde like polypeptide chain |
| C. | The folding of polypeptide chain due to the presence of hydrogen bond |
| D. | a, b, c all |
| Answer» D. a, b, c all | |
| 268. |
Which of the following is correct for the quaternary structure of protein? |
| A. | It represents a three dimensional form of whole protein |
| B. | It forms with interaction between different polypeptide Chain. |
| C. | a and b both |
| D. | It forms the three dimensional arrangement of the atoms within a single polypeptide chain |
| Answer» C. a and b both | |
| 269. |
Which is the correct option for the following diagram? |
| A. | Fibrous protein |
| B. | Globular protein |
| C. | Polypeptide chain |
| D. | Three dimensional form of protein |
| Answer» C. Polypeptide chain | |
| 270. |
What –‘X’ indicates in the given figure? |
| A. | N-terminal |
| B. | P-terminal |
| C. | C-terminal |
| D. | H-terminal |
| Answer» C. C-terminal | |
| 271. |
What is the shape of the three dimensional structure of protein? |
| A. | Flat sheet like |
| B. | Globular |
| C. | Fibrous |
| D. | b or c |
| Answer» D. b or c | |
| 272. |
Which of the following bond groups are involved in the formation of quaternary Protein? |
| A. | Peptide bond, covalent bond |
| B. | Disulphide bond, Ionic bond |
| C. | Easter bond, phosphodiester bond |
| D. | b and c both |
| Answer» B. Disulphide bond, Ionic bond | |
| 273. |
Which one is not correct for hemoglobin? |
| A. | It is known as conjugated protein |
| B. | It is the combination 0f 2- α and 2-β chain |
| C. | It is a protein which imparts color to the body |
| D. | It is molecule which contains four hacme groups. |
| Answer» C. It is a protein which imparts color to the body | |
| 274. |
Find out the miss matched pair |
| A. | Melanin-imparts color to the body |
| B. | Hemoglobin – transport of oxygen |
| C. | Chlorophyll – must for photosynthesis |
| D. | Immunoglobulin- responsible for movements of body |
| Answer» D. Immunoglobulin- responsible for movements of body | |
| 275. |
Which of the following statement is incorrect about lmmunoglobulin? |
| A. | It has the property of immunity |
| B. | It consist of more than one polypeptide chain |
| C. | It present in blood cell |
| D. | b and c both |
| Answer» C. It present in blood cell | |
| 276. |
What does the following diagram show? |
| A. | Quaternary structure of protein |
| B. | polypeptide chain |
| C. | Molecule structure of protein |
| D. | Secondary structure of protein |
| Answer» B. polypeptide chain | |
| 277. |
The classification of the protein in two types depends on |
| A. | Structure and function |
| B. | Types of amino acid |
| C. | Numbers of amino acid |
| D. | none above |
| Answer» A. Structure and function | |
| 278. |
Nuclein separated in to which components? |
| A. | Protein + chromosome |
| B. | Protein + Nucleic acid |
| C. | Nucleic acid + nitrogen base |
| D. | Nuceicoside + Nucleotide |
| Answer» B. Protein + Nucleic acid | |
| 279. |
Which one of the following is the major component of chromosome? |
| A. | Nucleic acid |
| B. | Protein |
| C. | Nitrogen base |
| D. | Lipid |
| Answer» A. Nucleic acid | |
| 280. |
Nucleic acid contains which group of molecules in their constitution? |
| A. | C, H, N and S |
| B. | C, H, O, N and S |
| C. | C, H, N, O, and P |
| D. | C, H, N and O |
| Answer» C. C, H, N, O, and P | |
| 281. |
Nucleic acids means |
| A. | A major components of chromosomes |
| B. | Polynucleotide of structural units known as nucleotides |
| C. | Small gene carrying bodies in the nuclei of complex cells |
| D. | Both a & b |
| Answer» D. Both a & b | |
| 282. |
Which are the structural units of DNA? |
| A. | Nitrogen base |
| B. | Pentose sugar |
| C. | nucleotide |
| D. | phosphoric acid |
| Answer» C. nucleotide | |
| 283. |
Which one group is the subunit of nucleotide? |
| A. | Pentose sugar, nitrogen |
| B. | Purina, pyrimidine, phosphorus |
| C. | Nitrogen base, sugar |
| D. | pentose sugar, Nitrogen base , phosphoric acid |
| Answer» D. pentose sugar, Nitrogen base , phosphoric acid | |
| 284. |
Which of the following will be characteristically different in different living organism? |
| A. | Protein |
| B. | Nucleic acid |
| C. | Enzyme |
| D. | Carbohydrate |
| Answer» B. Nucleic acid | |
| 285. |
Which one is not a polymer? |
| A. | ATP |
| B. | Hemoglobin |
| C. | Nucleotide |
| D. | Enzyme |
| Answer» C. Nucleotide | |
| 286. |
The illustration given below is which nitrogen base: |
| A. | Uracil |
| B. | Cytosine |
| C. | Thymine |
| D. | Ribose |
| Answer» C. Thymine | |
| 287. |
The illustration given below is which nitrogen base: |
| A. | Guanine |
| B. | Cytosine |
| C. | Uracil |
| D. | Adenine |
| Answer» D. Adenine | |
| 288. |
The following diagram represents the nitrogenous bases of nucleic acid Molecules Identify the correct combination: |
| A. | A= Guanine , B= Uracil |
| B. | A= Adenine , B= Thymine |
| C. | A= Cytosine , B= Adenine |
| D. | A= thymine , B= Guanine |
| Answer» A. A= Guanine , B= Uracil | |
| 289. |
What is Ribonucleoside? |
| A. | Ribose + Nucleic acid |
| B. | Ribose + Nitrogen base |
| C. | Ribose + Phosphate |
| D. | Ribose + Adenine |
| Answer» B. Ribose + Nitrogen base | |
| 290. |
What ‘A’ and ‘B’ indicates in the given diagram? |
| A. | A= CH2OH, B= OH |
| B. | A= CH2OH, B= H |
| C. | A= CH, B= OH |
| D. | CH2, B= H |
| Answer» D. CH2, B= H | |
| 291. |
Which two sequential carbon number of nucleotides join through phosphodiaster bond? |
| A. | 3 and 5 |
| B. | 1 and 4 |
| C. | 1 and 6 |
| D. | 2 and 5 |
| Answer» A. 3 and 5 | |
| 292. |
What is Guanine? |
| A. | Purine |
| B. | Hormone |
| C. | Enzyme |
| D. | Pyrimidine |
| Answer» A. Purine | |
| 293. |
Ribonucleoside formed from ribonucleotide while:- |
| A. | It made from sugar |
| B. | It made from nitrogen base |
| C. | It made from phosphate |
| D. | a, b, c all above |
| Answer» C. It made from phosphate | |
| 294. |
DNA is localized in which cell organelle? |
| A. | Vacuoles |
| B. | Lysosomes |
| C. | Golgi apparatus |
| D. | Nucleus, mitochondria, chloroplast |
| Answer» D. Nucleus, mitochondria, chloroplast | |
| 295. |
A DNA stand is directly involved in the synthesis of all the following except – |
| A. | Another DNA Stand |
| B. | t- RNA |
| C. | m-RNA |
| D. | Protein |
| Answer» D. Protein | |
| 296. |
Nucleic acids were discovered by whom? |
| A. | Crick |
| B. | Wilkinson |
| C. | meischer |
| D. | Watson |
| Answer» C. meischer | |
| 297. |
Nucleic acids are related with which activity? |
| A. | Digestion |
| B. | Respiration |
| C. | Reproduction |
| D. | Heredity |
| Answer» D. Heredity | |
| 298. |
What ‘A’ and ‘B’ indicates in the given structure? |
| A. | A= CH2, B= N |
| B. | A= (>C=0), B= NH |
| C. | A= NH, B= NH |
| D. | A=NH2, B=NH |
| Answer» D. A=NH2, B=NH | |
| 299. |
Chemically DNA differs from RNA by: |
| A. | Thymine and deoxyribose present in DNA and Uracil and ribose in RNA |
| B. | Uracil and deoxyribose in DNA and thymine and ribose in RNA |
| C. | Deoxyribose in DNA and ribose in RNA |
| D. | Two nucleotide in DNA and one nucleotide in RNA |
| Answer» A. Thymine and deoxyribose present in DNA and Uracil and ribose in RNA | |
| 300. |
Nucleic acids are polymers of which molecules? |
| A. | Nucleosides |
| B. | Nucleotides |
| C. | Polypeptides |
| D. | polysomes |
| Answer» B. Nucleotides | |
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