Question

Energy in biology falls into two categories. Kinetic energy (aka cellular work) includes solute

transport, motion, and endergonic chemical reactions. Potential energy is the energy of position and
is an important tool to store energy in biology. Potential energy in biology includes covalent bonds
and chemical gradients. Which of the following is evidence of the potential energy of covalent
chemical bonds?
a
Triglycerides (CiaH36O2l3 store about twice as much energy as polysaccharides (CH2O)
All of the other choices are evidence of the potential energy of covalent bonds.
O Light and heat are released when cellulose (wood) is burned.
Exergonic hydrolysis of ATP powers motor proteins.

Answer 1

A. Triglycerides (CiaH36O2l3 store about twice as much energy as polysaccharides (CH2O)

Step-by-step explanation:

Energy, as stated in this question, can be of two types namely: kinetic energy and potential energy. Kinetic energy is the energy due to motion i.e the energy used to transport solute etc.

On the other hand, potential energy is the energy due to position like the energy stored in the covalent bonds of a molecule. Based on this question, the fact that triglycerides (a type of lipid) store about twice as much energy as polysaccharides (carbohydrate) is evidence that POTENTIAL ENERGY is stored in covalent bonds.