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Proteins are so large that they require the interaction of vesicles on cell membranes to get out of cells. Some examples are; enzyme secretion, hormone secretion,neurotransmitter release. Basically they use vesicle formation to get transported into or out of the cell. And since vesicle forming is an energy requiring process it would be an exocytosis or endocytosis reaction.
But usually as an even simpler answer, cells do not usually take in proteins, they take in amino acids which then make their own proteins.
What else can I help you with?
Are proteins assembled in the cell?
Ribosomes are the cell organelles that assemble proteins. They function as factories to produce usable proteins for a cell.
What kinds of proteins can be found in cell membranes?
There are two kinds of proteins in a cell membrane: peripheral PROTEINS OR trans membrane proteins. Cell membranes are able to perform various functions only because of different membrane protein functions. Most of the membrane proteins have alpha helix structure.
What are the proteins that control reactions in a cell?
The proteins that control reaction in a cell are enzymes.
The part of the cell that constructs the proteins that your cell needs is the?
ribosomes are the organelles responsible for constructing proteins in the cell.
Proteins in the cell membrane that identify the cell are called?
These proteins are called self markers. They tell the immune cells that they belong in the body and they should be attacked.Cell receptors (proteins) on the cell membrane mediate the inter cellular communications.
How are proteins trasported from the nuclear membrane to other parts of the cell?
the proteins travel through the cell by the endoplasmic reticulum(ER).
Where travel proteins?
Cellular (transported) proteins travels around the cell and sometimes destined to the particular organelle where it does its function. Secreted proteins such as albumin or hemogolbin are carrier proteins. Hemoglobin carries oxygen and carbon dioxide all over the body through blood tissue.
Are proteins assembled in the cell?
Ribosomes are the cell organelles that assemble proteins. They function as factories to produce usable proteins for a cell.
To what part of the cell do the products of transcription travel?
The products of transcription, mRNA travel through the nuclear pores. It goes to the cytoplasm and then is made into a polypeptide chain.
What kinds of proteins can be found in cell membranes?
There are two kinds of proteins in a cell membrane: peripheral PROTEINS OR trans membrane proteins. Cell membranes are able to perform various functions only because of different membrane protein functions. Most of the membrane proteins have alpha helix structure.
What are the proteins that control reactions in a cell?
The proteins that control reaction in a cell are enzymes.
Where in the cell are ribosomal proteins synthesized?
Ribosomal proteins are synthesized in the cytoplasm of the cell.
How do proteins leave the cell?
Proteins leave the cell through a process called exocytosis, where they are packaged into vesicles and transported to the cell membrane. The vesicle then fuses with the cell membrane, releasing the proteins outside of the cell.
What cell builds lysosomes?
proteins
The part of the cell that constructs the proteins that your cell needs is the?
ribosomes are the organelles responsible for constructing proteins in the cell.
How can proteins fit in the cell?
Proteins are MUCH tinier (by a million times) than a cell.
Where are the ribosomes the manufacture proteins for transport out of the cell located?
Ribosomes which make extracellular proteins (proteins which are used outside of the cell) are located on the rER (rough ER). Ribosomes which make proteins which remain in the cell are free floating in the cell's cytoplasm.
