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What is an extensive system of internal membranes that move proteins and other other substances through the cell?
Wiki User
∙ 10y ago
endoplasmic reticulum
Rick Satterfield
Wiki User
∙ 14y agoEndoplasmic Reticulum. The rough ER is dotted with ribosomes, while the smooth ER is not.
Wiki User
∙ 10y agoEndoplasmic Reticulum
Wiki User
∙ 14y agoendoplasmic reticulum
Wiki User
∙ 13y agoEndoplasmic reticulum
Wiki User
∙ 11y agoIn cell is called E.R.
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What substances are too large for carrier proteins?
Glucose...It's a HUGE molecule that is broken down into Glycogen for storage.
Internal membranes that move substances through the cell?
There are different types of proteins embedded in the cell membrane that do this. Channel proteins act as...well channels... allowing substances to move in. Carrier protiens change shape in response to a substance and move it into the cell. Ligand-gated protiens don't allow anything in until a special signal molecule, called a ligand, binds to it signalling it to let the substances in. Also these protiens may or may not require energy to do thier job, depending on if its active or passive transport. Hope this helped.
Do all chemical substances pass in and out of a cell membrane with equal ease?
no, cell membranes only allow things to pass through it only by using proteins embedded on it for things such as some nutrients and even water. there are two types of these proteins that could be found in the cell membrane, integral proteins, and peripheral proteins. integral proteins are proteins that span throughout the whole cell membrane from one side to another and have polar ends and nonpolar interiors transporting things like nutrients into the cell. peripheral proteins are proteins that only attach to the side of the cell membranes and do not go through it completely. some of these specialized proteins include: aquaporins for transport of water carrier proteins that bind with these necessary molecules to transfer them across the cell membrane glycoproteins that have sugars attached to them channel proteins that allow molecules to freely pass through membrane receptor proteins that bind with proteins on the surface of the cell and enzymatic proteins that help carry out metabolic reactions in the cell
What part of our bodies acts like a visking tube?
You may be thinking of the blood capillaries. Like visking tubing, their walls are able to let substances diffuse in and out. This is also true of the cell membranes. However both of these are much more permeable than visking tubing. The kidney contains semi-permeable membranes which allow urea to pass through but not other substances such as proteins.
Membranes are organs formed by the combination of which tissues?
they consist of lipids and proteins
What is an extensive system of internal membranes that moves proteins and other substances trough the cell?
Endoplasmic Reticullum(E.R)
Which molecules help control movement of substances through cell membranes?
proteins help control movement of substances through cell membranes.
Do some membranes have proteins with chanels that allow for the passage of hydrophilic substances?
true
How do carrier proteins transport substances across membranes?
They control what enters and exits the cell :)
How do transport move substances across membranes?
Transport proteins change shape, much like a folding door
Is this true some membranes have proteins with channels or pores that allow for passage of hydrophilic substances?
yes it's true.
What membrane components allow movement of non-polar substances across membrane?
Integral proteins allow movement of non-polar substances across membranes.
What substances are too large for carrier proteins?
Glucose...It's a HUGE molecule that is broken down into Glycogen for storage.
When was Orientations of Proteins in Membranes database created?
Orientations of Proteins in Membranes database was created in 2005.
Which part allows or prevents substances to go into and out of the cell?
The cell membrane acts as the barrier and transport proteins present in the membrane, such as globular proteins, transport molecules across cell membranes.
What is Golgi body?
Golgi bodies are stacked, flattened membranes which sort proteins and other cellular substances and package them into membrane-bound structures called vesicles.
Why Proteins do not pass through cell membranes?
Hydrophilic proteins.
