What are some roles protein play in living organisms?

Answer 1

1. Enzymes are proteins. Enzymes catalyze chemical reactions - helping reactions happen as needed.

2. Proteins are structural elements of organisms.

3. Proteins make up parts such as hair, horns, hooves, nails, ...

4. Proteins are integral parts of membranes, helping to transport materials and acting in cell recognition.

5. The cytoskeleton that gives cells shape and support are made of protein, as well as the spindle fibers, cilia, flagella, centrioles, ...

6. Proteins carry oxygen, give immunity, contract muscles, ..

Answer 2

proteins is necicary for the development and repair of muscles and other body tissues. Some hormones are also protines, and proteins aid in the formation of antibodies. DNA and RNA are also proteins

Answer 3

All enzymes, the metabolic workers of the cell, are protein. Structures, such as cytoskeletons, are protein. Integrin proteins that span the cell membrane and do the work of transport across this membrane are protein, generally.

So, with out protein there would be no living organisms.

Answer 4

Proteins are the chief actors within the cell, said to be carrying out the duties specified by the information encoded in genes. With the exception of certain types of RNA, most other biological molecules are relatively inert elements upon which proteins act. Proteins make up half the dry weight of an Escherichia coli cell, whereas other macromolecules such as DNA and RNA make up only 3% and 20%, respectively. The set of proteins expressed in a particular cell or cell type is known as its proteome.

Answer 5

Proteins are the building blocks of all living organisms.