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Q. No.
A.
Cellulose and Starch can hold I2 due to formation of helical secondary structures
B.
Proteins transport nutrient across cell membrane and fight infectious organisms
C.
At high-temperature, enzymes get damaged while inorganic catalysts work efficiently
D.
In animal tissue, different drugs, pigments, essential oil, magnesium, O2 compounds are noticed
E.
DNA and RNA have three chemically distinct components - heterocyclic ring, pentose monosaccharide and phosphate
Out of the statements given above about biomolecules, which of the statements are not correct?
1. D and E only
2. A and D only
3. A, B and D only
4. B, E and C only
Subtopic: The DNA | Proteins | Carbohydrates |
61%
From NCERT
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Which of the following combination of factors affects enzyme activity?
A. Salinity & pH
B. Temperature
C. Concentration of substrate
D. Temperature & pH
E. pH
Choose the correct answer from the options given below:
1. A only
2. B only
3. C & D only
4. A & B only
Subtopic: Factors Affecting Enzyme Catalysis Reaction |
85%
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Match List I with List II:
Choose the correct answer from the options given below:
1. A-II B-I C-III D-IV
2. A-IV B-III C-II D-I
3. A-I B-IV C-II D-III
4. A-III B-II C-IV D-I
| List I | List II |
| A. Collagen | I. Intercellular ground substances |
| B. GLUT- 4 | II. Flights infectious agents |
| C. Antibody | III. Sensory reception |
| D. Receptor | IV. Enables glucose transport into the cell |
1. A-II B-I C-III D-IV
2. A-IV B-III C-II D-I
3. A-I B-IV C-II D-III
4. A-III B-II C-IV D-I
Subtopic: Proteins |
92%
From NCERT
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Which of the following compounds are secondary metabolites?
A. Morphine
B. Abrin
C. Lecithin
D. Uridine
E. Curcumin
Choose the correct answer from the option given below:
1. A & E only
2. A, B & E only
3. C & D only
4. A & C only
A. Morphine
B. Abrin
C. Lecithin
D. Uridine
E. Curcumin
Choose the correct answer from the option given below:
1. A & E only
2. A, B & E only
3. C & D only
4. A & C only
Subtopic: Primary & Secondary Metabolites |
87%
From NCERT
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Which of the following statement is/are incorrect regarding polysaccharides?
Choose the correct answer from the options given below:
1. A, B, C only
2. B, D, E only
3. B, E only
4. B, C, D only
| A. | Inulin is a polymer of fructose |
| B. | Both starch and glycogen are present as storehouses of energy in plant tissue |
| C. | Glucose is a monomer of cellulose |
| D. | Cellulose is a homopolymer while chitin is a heteropolymer |
| E. | Starch does not contain complex helices and hence cannot hold I2 |
1. A, B, C only
2. B, D, E only
3. B, E only
4. B, C, D only
Subtopic: Carbohydrates: Starch & Glycogen | Carbohydrates: Cellulose, Chitin, Inulin & Agar |
55%
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Reverse transcriptase is mainly found in retroviruses such as HIV. Four nucleotides are needed for the reaction catalysed by this enzyme.
A group of molecules may inhibit this enzyme. These molecules are structurally similar to the nucleotides but slightly altered so that bonds normally formed in the reaction cannot be made.
Which of the following statements may be correct?
1. The four inhibitor molecules will resemble adenine, thymine, guanine and cytosine.
2. The inhibitor molecules can prevent the formation of phosphodiester bonds.
3. The inhibitor molecules can result in a reduction in the number of new virus particles produced.
1. 1 and 3 only
2. 1, 2 and 3
3. 3 only
4. 1 and 2 only
A group of molecules may inhibit this enzyme. These molecules are structurally similar to the nucleotides but slightly altered so that bonds normally formed in the reaction cannot be made.
Which of the following statements may be correct?
1. The four inhibitor molecules will resemble adenine, thymine, guanine and cytosine.
2. The inhibitor molecules can prevent the formation of phosphodiester bonds.
3. The inhibitor molecules can result in a reduction in the number of new virus particles produced.
1. 1 and 3 only
2. 1, 2 and 3
3. 3 only
4. 1 and 2 only
Subtopic: Enzyme Inhibition |
60%
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Which of the following statements is/are correct for all enzyme inhibitors?
(i) They alter the shape of the active site.
(ii) They denature the enzyme.
(iii) They increase the activation energy of the reaction.
(iv) They reduce the rate of the enzyme catalysed reaction.
1. (iv) only
2. (iii) only
3. (i), (ii) and (iii) only
4. (i), (ii) and (iv) only
(i) They alter the shape of the active site.
(ii) They denature the enzyme.
(iii) They increase the activation energy of the reaction.
(iv) They reduce the rate of the enzyme catalysed reaction.
1. (iv) only
2. (iii) only
3. (i), (ii) and (iii) only
4. (i), (ii) and (iv) only
Subtopic: Enzyme Inhibition |
50%
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The following structures are found in plant cells:
(i) cell wall
(ii) cell membrane
(iii) nucleolus
(iv) mitochondrion
Which cell structures might contain molecules containing carbohydrate monomers?
1. 1 only
2. 1 and 4 only
3. 2 and 3 only
4. 1, 2, 3 and 4
(i) cell wall
(ii) cell membrane
(iii) nucleolus
(iv) mitochondrion
Which cell structures might contain molecules containing carbohydrate monomers?
1. 1 only
2. 1 and 4 only
3. 2 and 3 only
4. 1, 2, 3 and 4
Subtopic: Carbohydrates |
58%
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Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
| Statement I: | Amino acids have a property of ionizable nature of –NH2 and –COOH groups, hence have different structures at different pH. |
| Statement II: | Amino acids can exist as Zwitterionic form at acidic and basic pH. |
| 1. | Both Statement I and Statement II are correct. |
| 2. | Both Statement I and Statement II are Incorrect. |
| 3. | Statement I is correct but Statement II is incorrect. |
| 4. | Statement I is incorrect but Statement II is correct. |
Subtopic: Amino Acids |
73%
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NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Match List-I with List-II
Choose the correct answer from the option given below
| List-I | List-II | ||
| (a) | Insulin | (i) | Phosphoester bond |
| (b) | Inulin | (ii) | Glycosidic bonds |
| (c) | Adenylic acid | (iii) | Peptide bonds |
| (d) | Arachidonic acid | (iv) | C = C double bonds |
Choose the correct answer from the option given below
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iv) | (iii) | (i) |
| 2. | (iii) | (ii) | (i) | (iv) |
| 3. | (iv) | (ii) | (iii) | (i) |
| 4. | (iv) | (i) | (ii) | (iii) |
Subtopic: Carbohydrates |
84%
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