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What determines whether a protein is exported from a cell or used inside the cell?
Membrane proteins and proteins that will be exported for use outside the cell are produced by ribosomes attached to the endoplasmic reticulum. Ribosomes that are free in the cytosol produce proteins that will be used within the cell.
Outline four functions of proteins within the cell membrane?
There are four functions of proteins within the cell membrane. The four functions of proteins are active transport, cell recognition, cell communications, and are used as enzymes in the cell membrane.
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.
When complement proteins encounter the cell walls of bacteria or fungi they form a membrane attack complex?
Yes, complement proteins can form a membrane attack complex (MAC) on the cell walls of bacteria or fungi. The MAC creates pores in the microbial cell membrane, leading to cell lysis and destruction. This process is part of the immune system's defense against invading pathogens.
What part of the cell creates protein for the cell?
They are maaaade on ribosomes. DNA codes for proteins
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.
Which structure synthesizes proteins that will be used by the cell?
Nucleolus
Phospholipids and proteins are used to make cell?
membrane
What happens after the synthesis of proteins?
After proteins get modified in the Endoplasmic Reticulum, they are transported through the golgi apparatus where they get packaged into vesicles to late be secreted out of the cell or to be used within the cell.
What is a cell of nucleus?
the nucleus of a cell is the brain of the cell and controlls the entire cells actions
What cell part is made up of proteins and is responsible for moving things around in the cell?
The endoplasmic reticulum has two parts to it. The Rough ER has many Ribosomes lining its inside and creates proteins for the cell which are either used or sent to the Golgi Apparatus for transportation. Proteins that are created in the Rough ER have a higher chance of being secreted. The smooth ER's job is to remove toxins from the system, which is why a high concentration of Smooth ER is found in the liver.
What is used to direct proteins synthesis in the cell?
Sequences of nitrogenous bases in the cell's DNA.
What determines whether a protein is exported from a cell or used inside the cell?
Membrane proteins and proteins that will be exported for use outside the cell are produced by ribosomes attached to the endoplasmic reticulum. Ribosomes that are free in the cytosol produce proteins that will be used within the cell.
What 2 things make up a cell membrane?
A cell membrane is primarily composed of phospholipids and proteins. Phospholipids form a lipid bilayer that creates a barrier around the cell, while proteins are embedded within or attached to the membrane, serving various functions such as transport, signaling, and structural support.
What proteins are used in active and passive transport?
cell membrane
Which cell part is responsible for synthesizing proteins to be used during cell processes?
Ribosomes are responsible for synthesizing proteins in the cell. They can be found free in the cytoplasm or attached to the endoplasmic reticulum. Proteins synthesized by ribosomes are essential for the functioning of the cell in various processes.
