Identify three of the many functions of proteins within the human body.Multiple select question.Proteins function as receptors on the surfaces of cells.Proteins allow biological information to be transferred to the next generation.Proteins carry substances within the blood.Proteins provide insulation.Proteins catalyze chemical reactions.

Select all that applySelect three typical functions of proteins.Multiple select question.Act as enzymesAs regulatory hormonesAs components of nucleic acidsSupportForm bilayers in plasma membranes

Item21pointsPrintReferencesItem 2Which of the following are major functions of proteins in the body? Check all that apply.Check All That ApplyIn clotting compounds in bloodIn clotting compounds in bloodTo make certain hormonesTo make certain hormonesAs components of harded structures, such as hair and nailsAs components of harded structures, such as hair and nailsAs part of bile, necessary for lipid digestion and absorptionAs part of bile, necessary for lipid digestion and absorptionTo enhance neural function and prevent dementiaTo enhance neural function and prevent dementiaAs compounds that help maintain fluid and pH balanceAs compounds that help maintain fluid and pH balanceTo build antibodies that fight disease organismsTo build antibodies that fight disease organisms

Most of the protein in the body is found as ____________ ____________.2. Proteins are the most diverse in both function and structure out of all organicmolecules because of their diverse ____________.3. Contractile proteins work closely with ____________ proteins.4. ____________ is the iron-containing protein found in blood which moves oxygenfrom the lungs to other parts of the body.5. Enzymes act as ____________ ____________, meaning they affect the speed ofa chemical reaction without being changed itself.6. ____________ amino acids can be created in the body and are not required in thediet.7. Also attached to the alpha carbon is a single ____________ atom and a chemicalgroup denoted by the letter ____.8. Proteins are created by one or more ____________ chains.9. The slightest change in the amino acid sequence can alter the overall____________, and therefore, ____________ of the protein.10. Almost all tertiary structures can be described as ____________, meaninground, or ____________, meaning rod-like.11. The last structural level is the ____________ structure.12. When polypeptide chains unravel and lose their specific shape and thereforelose their function, it is known as ____________.13. When you take in protein through food, it is broken down in the ____________by ____________ into smaller polypeptides for the body to use.14.To determine the amount of protein you should be taking in each day, you mustfirst determine your ideal _________________.

Which statements best compare a function of proteins and lipids in a human cell?ResponsesProteins provide energy for cellular processes.Lipids catalyze chemical reactions inside the cell.Proteins provide energy for cellular processes. Lipids catalyze chemical reactions inside the cell.Proteins catalyze chemical reactions inside the cell.Lipids allow for the transport of certain molecules into and out of the cell.Proteins catalyze chemical reactions inside the cell. Lipids allow for the transport of certain molecules into and out of the cell.Proteins allow for the transport of certain molecules into and out of the cell.Lipids store genetic information for cells.Proteins allow for the transport of certain molecules into and out of the cell. Lipids store genetic information for cells.Proteins store genetic information for cells.Lipids provide energy for cellular processes.

The function of membrane proteins is to:W. act as carrier molecules for various solutes.X. bind to ligands (chemicals).Y. regulate the passage of ions.Z. store cellular nutrients.Question 11