NURSING ANM AND GNM

Detailed explanation-1: -Proteins come in many different shapes and sizes. Some are globular (roughly spherical) in shape, whereas others form long, thin fibers. For example, the hemoglobin protein that carries oxygen in the blood is a globular protein, while collagen, found in our skin, is a fibrous protein.

Detailed explanation-2: -Proteins come in a wide variety of shapes, and they are generally between 50 and 2000 amino acids long. Large proteins generally consist of several distinct protein domains-structural units that fold more or less independently of each other, as we discuss below.

Detailed explanation-3: -Proteins tend to fold into 3-dimensional shapes. Answer (b) is also false because proteins can be made of just a few amino acids or as many as 1000s of chains of amino acids. Proteins do contain peptide chains that interact with each other. If they lose their 3-dimensional shape, they will lose their function.

Detailed explanation-4: -Expert-Verified Answer Protein regulates the balance of water in the body but it does not regulate the balance of acid.

Detailed explanation-5: -There are two general classes of protein molecules: globular proteins and fibrous proteins. Globular proteins are generally compact, soluble, and spherical in shape. Fibrous proteins are typically elongated and insoluble. Globular and fibrous proteins may exhibit one or more of four types of protein structure.