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What is the relation of aquaporins and active transport?
Aquaporins are specialized channels in cell membranes that facilitate the passive transport of water molecules across the membrane. Active transport, on the other hand, requires energy and specific transport proteins to move molecules against their concentration gradient. Aquaporins play a role in maintaining cell volume and osmotic balance, while active transport mechanisms help regulate the movement of ions and molecules in and out of the cell.
Adhesion is when water sticks to what?
Adhesion is when water molecules stick to the surface of other materials, such as glass, plastic, or plant tissues, due to the attractive forces between the water molecules and the molecules of the other material.
What is another form of transport that uses transport proteins to move other ions and small molecules across the plasma membrane?
This process of transportation might be diffusion. Diffusion, by definition, is the process by which molecules spread out, or move from areas where there is a high concentration of molecules to an area where there is a low concentration of molecules. I'm in my cell and genetics chapters of science as well...
Why do cells prefer to use passive transport instead of active transport?
Cells prefer to use passive transport because it does not require energy input from the cell. Active transport, on the other hand, requires energy in the form of ATP to move molecules against their concentration gradient. Passive transport is more efficient for moving molecules down their concentration gradient.
What type of protein is used to carry other molecules?
Carrier proteins are types of proteins used to carry other molecules, such as ions or small molecules, across cell membranes. These proteins can bind to specific molecules and transport them from one side of the membrane to the other. Examples include ion channels and transporters.
What does the cytosol contain?
The cytosol contains a variety of molecules such as salts, organic molecules, enzymes, and other cellular components. It also serves as the site for many metabolic pathways within the cell. Additionally, it acts as a medium for transport of molecules within the cell.
How do carrier proteins facilitate the passive transport of molecules across a membrane?
Carrier proteins facilitate the passive transport of molecules across a membrane by binding to specific molecules on one side of the membrane and changing shape to transport the molecules across to the other side. This process does not require energy and is driven by the concentration gradient of the molecules.
Which structure contains the other?
nucleus; genetic material
What is the job for endoplasmic reticulum?
The endoplasmic reticulum is responsible for protein and lipid synthesis, as well as the transport of these molecules within the cell. It plays a crucial role in cellular processes such as detoxification and calcium storage.
What do cells use to take in molecules or other cells?
active transport by endocytosis
Is facilitated diffusion an example of active transport?
No, facilitated diffusion is a type of passive transport where molecules move across a cell membrane with the help of transport proteins. Active transport, on the other hand, requires energy to move molecules against their concentration gradient.
What types of materials does osmosis transport?
Osmosis transports water molecules across a partially permeable membrane, such as a cell membrane. It does not transport other types of materials, like ions or larger molecules.
What type of protein is often used to carry other molecules?
glubour
What is the movement of material through a membrane?
The movement of material through a membrane can occur via passive processes such as diffusion and osmosis, where substances move down their concentration gradient without requiring energy input. Active transport, on the other hand, involves the use of energy to move substances against their concentration gradient. Facilitated diffusion involves the use of carrier proteins to help transport specific molecules across the membrane.
Why is facilitated transport not common in bacteria?
Facilitated transport is not common in bacteria because they typically rely on simple diffusion or active transport mechanisms to move molecules across their cell membranes. Bacteria have evolved to efficiently transport nutrients and other molecules through these methods, making facilitated transport less necessary for their survival and growth.
A chromosome contains many genes that are transcribed into different what?
A chromosome contains many genes that are transcribed into different RNA molecules. These RNA molecules can serve as templates for protein synthesis or have other functions in the cell.
Why does water roll off a persons skin when they get out of the pool?
Gravity?? Real answer: Because the skin contains nonpolar lipid (fats) molecules.
