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Proteins have many functions, including (but not limited to):

  • They serve as enzymatic catalysts
  • They store amino acids
  • They form antibodies that help prevent infection, illness and disease
  • They are involved in the creation of some hormones
  • Used as transport molecules
  • They are needed for mechanical support
  • They mediate cell responses
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Why do cells need protein for their essential functions?

Cells need proteins for their essential functions because proteins are involved in almost every process within a cell. Proteins help with cell structure, communication, transport of molecules, and catalyzing chemical reactions. Without proteins, cells would not be able to perform their necessary functions for survival and growth.


Do bacteria have proteins in their cells?

Yes, bacteria have proteins in their cells. Proteins play important roles in various cellular functions such as structure, metabolism, and regulation.


Functions of proteins in cells?

Proteins are responsible for nearly every task in the cell life. This includes cell shape and inner organization, waste cleanup and product manufacture, and routine maintenance. Proteins are also used to receive signals from outside the cell.


What are proteins used for in the cell and how do they contribute to cellular functions?

Proteins are essential molecules in cells that serve various functions. They are used for structural support, transport of molecules, communication between cells, and as enzymes to catalyze chemical reactions. Proteins contribute to cellular functions by carrying out these roles, which are crucial for the proper functioning and survival of the cell.


How are carbs different from proteins?

Carbs are primarily a source of energy for the body, while proteins are important for building and repairing tissues, as well as for enzyme and hormone production. Carbs are broken down into sugars for energy, while proteins are broken down into amino acids for various bodily functions. Additionally, carbs provide 4 calories per gram, while proteins provide 4 calories per gram.