Proteins: Structure, Function, and Importance

To provide the necessary building blocks for the creation of a wide array of important biological compounds.

Amino acids are the basic structural unit of proteins, and they are composed of carbon, hydrogen, oxygen, and nitrogen atoms.

This association is likely due to cultural and historical influences, as well as the fact that meat is a rich source of protein.

<p>Essential amino acids cannot be produced by the human body and must be obtained through diet, while nonessential amino acids can be synthesized by the body.</p> Signup and view all the answers

<p>Proteins contain nitrogen, whereas lipids and carbohydrates do not.</p> Signup and view all the answers

<p>Proteins are an important class of nutrients that work together with other nutrients to support overall health and well-being.</p> Signup and view all the answers

<p>Quinoa is a grain that is a complete protein, meaning it contains all nine essential amino acids.</p> Signup and view all the answers

<p>Nutrients work together in the body like members of a well-trained basketball team on the playing court.</p> Signup and view all the answers

<p>Muscle development and maintenance, structural functions, transport, blood clotting, and enzyme functions.</p> Signup and view all the answers

<p>Proteins help draw fluid back into the bloodstream, counteracting the effects of blood pressure.</p> Signup and view all the answers

<p>Fluid leaks out of the bloodstream and enters spaces between cells, causing edema.</p> Signup and view all the answers

<p>7.35 to 7.45, slightly basic.</p> Signup and view all the answers

<p>Transporting nutrients and oxygen, maintaining fluid balance, and helping to regulate acid-base balance.</p> Signup and view all the answers

<p>Proteins.</p> Signup and view all the answers

<p>Sending signals from one nerve cell to another.</p> Signup and view all the answers

<p>Speeding up chemical reactions without becoming part of the products.</p> Signup and view all the answers

<p>Nutritional imbalances that can result in serious health problems.</p> Signup and view all the answers

<p>Structural roles in cartilage, ligament, bone tissue, hair, nails, and skin.</p> Signup and view all the answers

<p>Amino or nitrogen-containing group, R group, and acid group</p> Signup and view all the answers

<p>To bind to excess hydrogen ions (H+) and neutralize them, raising the pH</p> Signup and view all the answers

<p>9, meaning they must be supplied by foods because the body cannot synthesize them or make enough to meet its needs</p> Signup and view all the answers

<p>The R group, acid group, and anchoring carbon atom; it is an important component of an amino acid because the body can convert it to glucose and use it for energy</p> Signup and view all the answers

<p>A nonessential, sulfur-containing amino acid; it forms components of bile, acts as an antioxidant, lowers blood pressure, and reduces inflammation</p> Signup and view all the answers

<p>Because they can become essential in certain situations, such as when the body cannot make enough of them due to inadequate intake of other amino acids</p> Signup and view all the answers

<p>It identifies the molecule as a particular amino acid, such as serine or lysine</p> Signup and view all the answers

<p>By binding to excess hydrogen ions (H+) and neutralizing them, raising the pH</p> Signup and view all the answers

<p>It contains a nitrogen atom and is part of the chemical structure of an amino acid</p> Signup and view all the answers

<p>As an 'energy-booster', but there is a lack of scientific evidence supporting its performance-related benefits</p> Signup and view all the answers