Multiple Choice
The overall three-dimensional shape of a single polypeptide is called its __________.
4. Biomolecules
Proteins
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Enzyme molecules require a specific shape to perform their catalytic function. Which of the following might alter the shape of an enzymatic protein?
A
Denaturing the protein
B
A change in salt concentrations or pH
C
Heating the protein
D
Treating the protein with a chemical that breaks hydrogen bonds
E
All of the listed responses are correct.
Verified step by step guidance1
Understand that enzymes are proteins that have a specific three-dimensional shape crucial for their function. This shape is maintained by various types of bonds and interactions, including hydrogen bonds, ionic bonds, and hydrophobic interactions.
Recognize that denaturing a protein involves disrupting its structure, which can occur through physical or chemical means. This process can lead to the loss of the enzyme's specific shape and, consequently, its function.
Consider how changes in salt concentrations or pH can affect enzyme shape. These changes can alter the ionic bonds and interactions within the protein, leading to a change in its conformation.
Acknowledge that heating a protein can increase the kinetic energy of its molecules, potentially breaking the weak bonds that maintain its structure, such as hydrogen bonds, leading to denaturation.
Understand that treating a protein with a chemical that breaks hydrogen bonds will directly disrupt the secondary and tertiary structures of the protein, altering its shape and potentially its function.
Related Videos
Related Practice
