usually, ionic bond occurs between metal and non metal
here Na is metal and Cl is non metal
so bond in NaCl is ionic bond
Genes and the environment can affect an organisms traits
Do ur own work. Stop plagiarising.
I choose the option (4) chemical bond.
Glucose is decomposed to 2 pyruvate, acetyl-CoA, and then entering the TCA cycle. All the energy such as ATP, NADH, and FADH2 is generated from braking the chemical bond.