Answer:
e. unique three-dimensional shape of the fully folded polypeptide.
Explanation:
The tertiary structure of a protein is the unique three-dimensional structure which emanates from the interaction between the “R groups” of the several amino acids that make up the polypeptide. Hydrogen bonding is one of the interactions that occur that gives the protein this structure. Other interactions are ionic bonding, dipole-dipole interactions, hydrophobic interactions, among others. The function of a protein is dependent on its tertiary structure, as a disruption of the tertiary structure causes a protein to be denatured, thereby rendering the protein not functional.
Answer:
contraction and relaxation of the heart
Explanation:
All blood enter in the right side of the heart through two vein they are called superior vena cava also stand for SVC and the inferior vena cava also stands for SVC
The SVC collects blood from the upper half of the body and the ICC collects blood from the lower half of the body.
And also the blood leaves the SVC and IVC and enters the right atrium
I believe D is the answer. It sounds most suited. If i’m wrong please lmk ! Also I apologize in advanced if Im wrong!
