Question

Choose the correct answers from the alternatives given .
Endergonic reactions

• A. are always coupling reactions
• B. can only occur if there is an input of energy
• C. have products with less free energy than the reactants
• D. all of the above are correct

Answer 1

The correct option is B can only occur if there is an input of energy

Endergonic needs an input of energy to create the products, which have more free energy as a whole than the sum of free energy of each of the reactants. An example of this type of reaction in biology is photosynthesis. This process depends on the reaction to absorb energy in the form of sunshine from the surroundings for it to occur.

So, the correct option is 'can only occur if there is an input of energy'.