Question

Choose the correct answers from the alternatives given
Energy coupling of endergonic and exergonic reactions within cells
A. Permits biological reactions to proceed at temperatures consistent with life.
B. Uses heat released by one reaction to fuel the other reaction
C. Utilizes ATP to carry energy between the exergonic and endergonic reactions
D. All of the above

Answer 1

Hint: Energy coupling occurs when the energy produced by one reaction or system is used to drive another reaction or system. (1) Transfer of energy from catabolism to anabolism, or transfer of energy from exergonic process to endergonic process. (2) Free energy (from ATP hydrolysis) is coupled or functionally linked to the energy needs of another chemical reaction.

Complete Answer:
Let’s find the correct answer from the following,
Option A: Most chemical reactions within organisms would be impossible under the normal conditions within the cell. For example, the body temperature of most organisms is too low for reactions to occur quickly enough to carry out life processes. Reactants may also be present in such low concentrations that it is unlikely they will meet and collide. Therefore, the rate of most biochemical reactions must be increased by a catalyst. A catalyst is a chemical that speeds up chemical reactions. In organisms, catalysts are called enzymes. These enzymes work at optimum temperature.

Option B: Energy coupling is the use of an exergonic process in order to carry out an endergonic process. The energy released in an exergonic process is used to develop an endergonic process.

Option C: The ATP is responsible for mediating the energy coupling of cells, it is the energy currency. It is used to boost many cellular reactions that require energy
ATP is the energy currency of the cell and is responsible for mediating the energy coupling of cells. It is also used for boosting any cellular reactions, providing energy which is required by the reactions without increasing the temperature a lot.

Option D: As all of the options are correct, therefore, this is the correct option.

Thus, the correct option is D) All of the above.

Note: Adenosine triphosphate (ATP), energy-carrying molecule found in the cells of all living things. ATP captures chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes.