Question

question 18 2 pts the chemical bond between amino - acids is called a ______ bond peptide hydrogen phosphodiester question 19 2 pts which of the following carbohydrates is used to store energy in animal cells? cellulose glycogen starch

Explanation:

• For Question 18: A peptide bond links amino - acids together in a polypeptide chain. Hydrogen bonds are non - covalent interactions, and phosphodiester bonds are found in nucleic acids.
• For Question 19: Glycogen is the carbohydrate used for energy storage in animal cells. Cellulose is a structural carbohydrate in plants, and starch is the energy - storage carbohydrate in plants.

Answer:

Question 18: A. peptide
Question 19: B. glycogen