Heat causes a protein to unfold because it increases one or more of these types of energy in the atoms in the protein, thus disrupting the weak interactions that keep the protein in its properly folded state.

a. translational
b. vibrational
c. rotational

Explanation:

Vibrational energy is the energy present in the vibrating system due to the vibration of the atoms in a molecule .

Rotational energy is the energy is in the form of kinetic energy.

It is due to the rotation of an object.

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