Q. No.The metabolic pathways in a living system:
I. are linear or circular
II. are series of linked reactions
III. are characterized by a definite rate and direction of flow of metabolites through them
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
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1. formation of a peptide bond
2. carbon dioxide dissolving in water
3. crossing over in meiosis
4. None, as there is no un-catalyzed metabolic conversion in living systems
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1. Tyrosine
2. Acetic acid
3. Gamma amino butyric acid
4. Tryptophan
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1. ATP
2. Creatine phosphate
3. Acetyl CoA
4. Glucose
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I: The living state and metabolism are synonymous.
II: Metabolism provides a mechanism for the production of energy.
1. Both I and II are correct and II correctly explains I
2. Both I and II are correct but II does not correctly explain I
3. I is correct and II is incorrect
4. I is incorrect and II is correct
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| Column I [Component] |
Column II [% of the total cellular mass] |
| A. Protein | P. 2 |
| B. Carbohydrates | Q. 1 |
| C. Lipids | R. 5-7 |
| D. Nucleic acids | S. 3 |
| T. 10-15 | |
| U. 70-90 |
Codes:
| A | B | C | D | |
| 1. | U | P | R | Q |
| 2. | T | S | P | R |
| 3. | T | P | S | R |
| 4. | P | Q | R | S |
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| I: | Morphine is a strong opiate that is found naturally in opium and is mainly used as a pain medication. |
| II: | Ricin is a toxin and a highly potent toxin produced in the seeds of the castor oil plant. |
| III: | Concanavalin A is a lectin and is widely used in biology and biochemistry to characterize glycoproteins and other sugar-containing entities on the surface of various cells. |
| IV: | Vinblastin is an anti-cancer drug typically used with other medications, to treat a number of types of cancer. |
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
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