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What structures allow large important molecules to pass through the cell membrane?
A cell membrane is in every plant and animal and it lets in water, nutrients, and food to the cell. The membrane MUST be permeable because then it wouldn't of let the in water, nutrients, and food into the cell. If the membrane was stiff, the molecules of water, nutrients, and food would not be able to fit into the cell.
What else can I help you with?
Can charged molecules pass through the membrane?
Yes, charged molecules can pass through the membrane.
What are the three molecules that cannot easily pass through the membrane?
The three molecules that cannot easily pass through the membrane are large molecules, charged molecules, and polar molecules.
Can hydrophobic molecules pass through a membrane?
Yes, hydrophobic molecules can pass through a membrane because the lipid bilayer of the membrane is also hydrophobic, allowing them to move through easily.
Which molecules cannot pass through the membrane?
Large molecules such as proteins and nucleic acids cannot pass through the cell membrane.
Can large polar molecules pass through the plasma membrane?
No, large polar molecules cannot pass through the plasma membrane.
What is a holes in plasma membrane through which molecules pass across capillary wall?
The plasma membrane is made up of a lipid bilayer and some proteins. The transmembrane proteins are the structures which are involved in the transport of molecules in or through the cell.
What structures allow genetic material to pass through the nuclear membrane?
Nuclear pore complexes (NPCs) are structures that span the nuclear membrane and allow the passage of molecules, including genetic material such as DNA and RNA, in and out of the nucleus. NPCs regulate the transport of these molecules by recognizing specific signals on the molecules themselves.
Can charged molecules pass through the membrane?
Yes, charged molecules can pass through the membrane.
How do small molecules get through the cell membrane against a concentration?
How do small molecules get through a cell membrane
What are the three molecules that cannot easily pass through the membrane?
The three molecules that cannot easily pass through the membrane are large molecules, charged molecules, and polar molecules.
Why do passenger molecules need to be helped by the carrier protein?
Some molecules can't go through the cell membrane.
Can hydrophobic molecules pass through a membrane?
Yes, hydrophobic molecules can pass through a membrane because the lipid bilayer of the membrane is also hydrophobic, allowing them to move through easily.
Which molecules cannot pass through the membrane?
Large molecules such as proteins and nucleic acids cannot pass through the cell membrane.
Can large polar molecules pass through the plasma membrane?
No, large polar molecules cannot pass through the plasma membrane.
What are the special structures in the cell membrane that allow water and sugar pass through it made of?
These special structures are called protein gates or protein channels. Water is able to diffuse through the cell membrane since it is a small molecule. However, there are channels called aquaporins that allow water to enter the cell. A glucose molecule cannot just diffuse into a cell. There are glucose channels on the surface of the cell membrane that bind glucose molecules and allow them to enter the cell.
Which molecules difuse through the lipid portion of the plasma membrane?
Only nonpolar (hydrophobic) molecules can pass through the bi-lipid membrane. For example, hormones are nonpolar, and they can pass through the membrane.
Do substances enter any plant or animal cell by passing through a cell membrane?
Molecules can not pass through the cell membrane, because endocytosis is important for those large molecules that can not pass through the cell membrane!!
