MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Biochemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Identify the products formed in the following reaction. |
| A. | CH3 COOH and CH3OH |
| B. | CH3 COOOH and CH4 |
| C. | CO2 and C2H6 |
| D. | No reactionView Answer |
| Answer» B. CH3 COOOH and CH4 | |
| 2. |
Which among the following statements is true about the following chemical reaction? |
| A. | Iron metal is getting reduced |
| B. | Water is acting as a reducing agent |
| C. | Water is acting as an oxidizing agent |
| D. | Water is getting oxidizedView Answer |
| Answer» D. Water is getting oxidizedView Answer | |
| 3. |
What does it mean when we say that water acts as a “heat buffer”? |
| A. | It keeps the temperature of an organism relatively constant as the temperature of the surroundings fluctuates |
| B. | It increases the temperature of an organism as the temperature of the surroundings increases |
| C. | It decreases the temperature of an organism as the temperature of the surroundings increases |
| D. | It increases the temperature of an organism as the temperature of the surroundings decreases |
| Answer» B. It increases the temperature of an organism as the temperature of the surroundings increases | |
| 4. |
Hydrolysis reactions are catalyzed by enzymes called ___________ |
| A. | Oxidoreductase |
| B. | Ligase |
| C. | Hydrolase |
| D. | Isomerase |
| Answer» D. Isomerase | |
| 5. |
Consider the following reaction, in the presence of light Which of the following statements is true? |
| A. | X is electron-accepting specie |
| B. | X is electron-donating specie |
| C. | Water is an electron acceptor |
| D. | Water neither donates nor accepts any electronView Answer |
| Answer» B. X is electron-donating specie | |
| 6. |
The processes i and ii are respectively. |
| A. | Hydration and dehydration |
| B. | Hydration and hydrolysis |
| C. | Hydrolysis and hydrolysis |
| D. | Hydration and hydrationView Answer |
| Answer» C. Hydrolysis and hydrolysis | |
| 7. |
WHICH_AMONG_THE_FOLLOWING_STATEMENTS_IS_TRUE_ABOUT_THE_FOLLOWING_CHEMICAL_REACTION??$ |
| A. | + 4H<sub>2</sub> O ‚Üí Fe<sub>3</sub> O<sub>4</sub> (s) + 4H<sub>2</sub> |
| B. | Iron metal is getting reduced. |
| C. | Water is acting as a reducing agent |
| D. | Water is acting as an oxidizing agent |
| Answer» D. Water is acting as an oxidizing agent | |
| 8. |
Identify_the_products_formed_in_the_following_reaction$ |
| A. | |
| B. | CH<sub>3</sub> COOH and CH<sub>3</sub> OH |
| C. | CH<sub>3</sub> COOOH and CH<sub>4</sub> |
| Answer» B. CH<sub>3</sub> COOH and CH<sub>3</sub> OH | |
| 9. |
What trend does the reactivity of group II elements follow with water? |
| A. | Increases down the group |
| B. | Decreases down the group |
| C. | Does not follow any particular trend |
| D. | No reaction |
| Answer» B. Decreases down the group | |
| 10. |
Which of the following does not react with water? |
| A. | Barium |
| B. | Calcium |
| C. | Beryllium |
| D. | Strontium |
| Answer» D. Strontium | |
| 11. |
What does it mean when we say that water acts as a “heat buffer”?$ |
| A. | It keeps the temperature of an organism relatively constant as the temperature of the surroundings fluctuates. |
| B. | It increases the temperature of an organism as the temperature of the surroundings increases |
| C. | It decreases the temperature of an organism as the temperature of the surroundings increases |
| D. | It increases the temperature of an organism as the temperature of the surroundings decreases |
| Answer» B. It increases the temperature of an organism as the temperature of the surroundings increases | |
| 12. |
Hydrolysis reactions are catalyzed by enzymes called |
| A. | Oxidoreductase |
| B. | Ligase |
| C. | Hydrolase |
| D. | Isomerase |
| Answer» D. Isomerase | |
| 13. |
Consider the following reaction, in the presence of light |
| A. | |
| B. | |
| Answer» B. | |
| 14. |
Which of the following is the correct equation? |
| A. | CO<sub>2</sub> + H<sub>2</sub> O H<sub>2</sub> CO<sub>3</sub> |
| B. | CO<sub>2</sub> + H<sub>2</sub> O HCO<sub>3</sub> |
| C. | CO<sub>2</sub> + H<sub>2</sub> O H<sub>3</sub> CO<sub>3</sub> |
| D. | CO<sub>2</sub> + H<sub>2</sub> O H<sub>2</sub> CO<sub>2</sub> |
| Answer» B. CO<sub>2</sub> + H<sub>2</sub> O HCO<sub>3</sub> | |
| 15. |
Which of the following is not a condensation reaction? |
| A. | ADP + inorganic phosphate ATP + H2O |
| B. | R-OH + inorganic phosphate phosphate ester + H<sub>2</sub> O |
| C. | R-COOH + inorganic phosphate Acyl phosphate + H<sub>2</sub> O |
| D. | 6CO<sub>2</sub> + 6 H<sub>2</sub> O C<sub>6</sub> H<sub>12</sub> O<sub>6</sub> + 6CO<sub>2</sub> |
| Answer» E. | |
| 16. |
A) CuSO4 + 5H2 O CuSO4.5H2 O |
| A. | PCl<sub>3</sub> + 3H<sub>2</sub> O H<sub>3</sub> PO<sub>3</sub> + 3HCl |
| B. | |
| C. | Hydration and dehydration |
| Answer» C. Hydration and dehydration | |