- 1(current)
Q. No.Which of the following is not an example of a secondary metabolite produced in living organisms?
| 1. | Lecithin | 2. | Alkaloids |
| 3. | Flavonoids | 4. | Antibiotics |
Subtopic: Lipids: Fatty Acids | Primary & Secondary Metabolites |
From NCERT
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Match each item in Column I with one item in Column II and chose your answer from the codes given below:
| Column I | Column II | ||
| (a) | Alkaloid | (i) | Abrin |
| (b) | Toxin | (ii) | Morphine |
| (c) | Lectin | (iii) | Vinblastin |
| (d) | Drug | (iv) | Concanavalin A |
| (a) | (b) | (c) | (d) | |
| 1. | (i) | (ii) | (iii) | (iv) |
| 2. | (ii) | (i) | (iv) | (iii) |
| 3. | (ii) | (i) | (iii) | (iv) |
| 4. | (i) | (ii) | (iv) | (iii) |
Subtopic: Primary & Secondary Metabolites |
87%
From NCERT
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Consider the given two statements:
| Statement I: | Secondary metabolites derived from plant, fungal and microbial cells do not have a use in human welfare. |
| Statement II: | We do not, at the moment, understand the role or functions of all the secondary metabolites in host organisms. |
| 1. | Both Statement I and Statement II are correct and Statement II correctly explains Statement I |
| 2. | Both Statement I and Statement II are correct but Statement II does not correctly explain Statement I |
| 3. | Statement I is correct but Statement II is incorrect |
| 4. | Statement I is incorrect but Statement II is correct |
Subtopic: Primary & Secondary Metabolites |
80%
From NCERT
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Which of the secondary metabolites is an important anti-cancer drug?
| 1. | Ricin | 2. | Abrin |
| 3. | Vincristine | 4. | Atropine |
Subtopic: Primary & Secondary Metabolites |
68%
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Hints
Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Secondary metabolites | Class | ||
| A. | Vinblastine | P. | Polymeric substances |
| B. | Concanavalin A | Q. | Drugs |
| C. | Rubber | R. | Toxins |
| D. | Ricin | S. | Lectins |
Codes:
| A | B | C | D | |
| 1. | R | S | P | Q |
| 2. | Q | S | P | R |
| 3. | Q | P | R | S |
| 4. | P | Q | R | S |
Subtopic: Primary & Secondary Metabolites |
88%
From NCERT
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All the following will be secondary metabolites synthesised by living organisms, except:
1. flavonoids
2. antibiotics
3. starch
4. gums
1. flavonoids
2. antibiotics
3. starch
4. gums
Subtopic: Primary & Secondary Metabolites |
73%
From NCERT
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| Assertion (A): | Secondary metabolites in plants do not play any roles in the plant bodies. |
| Reason (R): | All secondary metabolites are excretory products in plants. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True and (R) does not correctly explain (A). |
| 3. | (A) is True; (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Primary & Secondary Metabolites |
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Hints
Match the following secondary metabolites with their examples as given in the table of NCERT:
Options:
1. 1-A, 2-B, 3-C
2. 1-C, 2-A, 3-B
3. 1-B, 2-C, 3-A
4. 1-C, 2-B, 3-A
| Column A | Column B | ||
| 1. | Alkaloids | A. | Tannins |
| 2. | Terpenoids | B. | Rubber |
| 3. | Polyphenols | C. | Caffeine |
1. 1-A, 2-B, 3-C
2. 1-C, 2-A, 3-B
3. 1-B, 2-C, 3-A
4. 1-C, 2-B, 3-A
Subtopic: Primary & Secondary Metabolites |
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Hints
Which of the following best describes the role of secondary metabolites in plants?
| 1. | They are primarily involved in growth and development. |
| 2. | They are essential for the plant's primary metabolic processes. |
| 3. | They play a key role in the plant's defense mechanisms. |
| 4. | They are directly involved in photosynthesis. |
Subtopic: Primary & Secondary Metabolites |
88%
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Hints
In a typical cell, which of the following constitutes least % of the total cellular mass?
| 1. | Proteins | 2. | Nucleic acids |
| 3. | Carbohydrates | 4. | Lipids |
Subtopic: Primary & Secondary Metabolites |
70%
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- 1(current)
Q. No.
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