Chemistry question

Question

Which statement is true regarding catabolic pathways?

1. Catabolic reactions consume energy.
2. Catabolism occurs only in vertebrates. 
3. Catabolic pathways are used to construct macromolecules such as carbohydrates, lipids, and proteins.
4. Catabolic pathways break polymers down into their monomers to obtain energy. 
5. Molecules are synthesized during catabolism using dehydration synthesis. 

Answer 1

Hi Rita,

All are incorrect except for the fourth bullet point. Catabolic pathways break down carbohydrates and release energy in the process.

For example-Glucose in the presence of Oxygen is broken down in our body by catabolism or respiration to yield carbon di oxide and water and releases ATP or energy that enables us to do work.

Thanks,

Geetha