Answer :

Final answer:

Proteins in a cell can serve multiple functions, such as acting as enzymes to accelerate internal chemical reactions, acting as hormones that send signals across the body, functioning as antibodies to battle foreign bodies in the immune system, or carrying essential molecules like oxygen as done by hemoglobin.

Explanation:

Without the specific examples and options for their functional categories, it's challenging to provide precise solutions to your question efficiently. However, I can help you understand the main functions that proteins can have in a cell based on standard biology knowledge. First, there are enzymes that act as catalysts to speed up chemical reactions within cells. Second, proteins can be hormones that transmit signals from one part of the body to another. Third, antibodies are proteins helping in immune responses by identifying and neutralizing foreign bodies like bacteria and viruses. Lastly, proteins, such as hemoglobin, can transport molecules like oxygen throughout the body.

Learn more about Functions of Proteins here:

https://brainly.com/question/33555927

#SPJ3

Thanks for taking the time to read Each category represents one of the functions of proteins Match each example with the appropriate function. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada

Answer:

  • Maintaining homeostasis: Insulin controls the concentration of sugar in the blood
  • Providing structure: Collagen makes skin strong yet flexible
  • Regulating chemical reactions: Pepsin works in the stomach to speed up the breakdown of food.
  • Fighting disease: IgA prevents the buildup of viruses and bacteria in the gut.

Explanation:

Homeostasis is the maintenance of internal environment of the cell with respect to the external environment. In the first statement, insulin is controlling the sugar level in the blood cells. Thus it is an example of homeostasis.

Collagen is an abundantly found protein in the mammals. It provides structural support to the connective tissues, bones, and muscles.

Pepsin is a digestive enzyme that breaks down proteins into respective amino acids. Our food normally have proteins which are thus degraded by the action of pepsin enzyme.

Immunoglobulin A or "IgA" is an antibody that play a vital role in immune/defense system. More precisely, it provides protection against viral and bacterial infections, e.g. influenza virus infection.