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Q. No.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
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 |
86%
Level 1: 80%+
Hints
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 |
91%
Level 1: 80%+
Hints
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 |
89%
Level 1: 80%+
Hints
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 |
58%
Level 3: 35%-60%
Hints
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?
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 |
61%
Level 2: 60%+
Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 345320
Hints
Which of the following statements is/are correct for all enzyme inhibitors?
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. |
2. (iii) only
3. (i), (ii) and (iii) only
4. (i), (ii) and (iv) only
Subtopic: Enzyme Inhibition |
55%
Level 3: 35%-60%
Hints
The following structures are found in plant cells:
Which cell structures might contain molecules containing carbohydrate monomers?
1. (i) only
2. (i) and (iv) only
3. (ii) and (iii) only
4. (i),(ii), (iii) and (iv)
| (i) | cell wall |
| (ii) | cell membrane |
| (iii) | nucleolus |
| (iv) | mitochondrion |
Which cell structures might contain molecules containing carbohydrate monomers?
1. (i) only
2. (i) and (iv) only
3. (ii) and (iii) only
4. (i),(ii), (iii) and (iv)
Subtopic: Carbohydrates |
60%
Level 2: 60%+
Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 345342
Hints
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 |
74%
Level 2: 60%+
NEET - 2022
Hints
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 |
86%
Level 1: 80%+
Hints
Read the given statements A, B and C and select the correct option.
| (A) | All enzymes are proteinaceous in nature. |
| (B) | Some competitive inhibitors are often used in the control of bacterial pathogens. |
| (C) | Active site of an enzyme is formed by the folding of the backbone of tertiary structure of protein upon itself. |
| 1. | Statements (A) and (B) are correct |
| 2. | Statements (B) and (C) are correct |
| 3. | Statements (A) and (C) are correct |
| 4. | Statements (A), (B) and (C) are correct |
Subtopic: Proteins | Enzymes | Factors Affecting Enzyme Catalysis Reaction | Properties of Enzymes |
65%
Level 2: 60%+
Hints
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