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transport proteins
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What is the funtion of the cell membrane?
The cell membrane acts as a barrier, controlling what enters and exits the cell. It also helps maintain the cell's shape and structure. Additionally, the cell membrane is important for cell communication and recognizing other cells or molecules.
Does the process of endocytosis require ATP for its functioning?
Yes, the process of endocytosis does require ATP for its functioning. ATP provides the energy needed for the cell to engulf and internalize substances through the cell membrane.
What two chimical substances are needed for photosynthisis?
Photolysis and Carbon Fixation...
How does the structure of the plasma membrane allow materials to move across it in both directions?
The structure of the plasma membrane consists of the phospholipid bilayer, which gives it a fluid structure, and not rigid, allowing the materials ease to pass through. Next, there are also integral proteins which can be thought of as 'tunnels', allowing the materials to come in and out. Then, there are peripheral proteins which also aid in getting the materials inside an out. On the cell membrane, there are receptors which recognize outside materials, and if they are really big, the cell engulfs these molecules through endocytosis [pinocytosis, and phagocytosis, which are basically for liquid molecules, and solid molecules]. This takes us back to the fluidity of the cell membrane. That's roughly how the cell membrane allows for the entering and exiting materials.
What will the cell membrane will absorb?
The cell membrane will selectively absorb nutrients, water, and other molecules needed for the cell's function and survival. It also plays a role in regulating the intake of substances into the cell and expelling waste products out of the cell.
What is the funtion of the cell membrane?
The cell membrane acts as a barrier, controlling what enters and exits the cell. It also helps maintain the cell's shape and structure. Additionally, the cell membrane is important for cell communication and recognizing other cells or molecules.
What is membrane its function?
Membranes in a cell helps in the exchange of substances in between the cytoplasm of the cell and the environment. Through this various substances such as enzymes and proteins created in the cells and oxygen needed for cellular respiration is transported and gained through the surrounding environment.
What is the movement of materials through the membrane called?
It's either diffusion, osmosis or active transport. More information is needed to answer the question fully.
What function is cell membrane?
A cell membrane is a selectivley permeable membrane. This means that it only lets specific materials get in and out of the cell. The cell membrane helps to let only needed materials into the cell and to get unneeded materials out of the cell. (food goes in waste comes out.)
Does the process of endocytosis require ATP for its functioning?
Yes, the process of endocytosis does require ATP for its functioning. ATP provides the energy needed for the cell to engulf and internalize substances through the cell membrane.
What two chimical substances are needed for photosynthisis?
Photolysis and Carbon Fixation...
What cells structures is associated with the breakdown of harmful substances or substances that are no longer needed by the cell?
Lysosomes are cell structures associated with the breakdown of harmful substances or substances that are no longer needed by the cell. They contain enzymes that help break down these materials for recycling or disposal.
What are the materials needed to obtain fresh water from seawater?
It will need a Reverse Osmosis membrane to filter out salts from the water.
Where does the materials needed by cells come from?
Cells get the materials they need from the environment around them. Nutrients are obtained from food and water intake, oxygen is obtained through breathing, and other necessary molecules are absorbed through cell membranes. The cell then uses these materials to carry out various functions and processes to sustain life.
How does the plasma membrane maintain homeostasis?
The Plasma membrane maintains the homeostasis throughout a cell because it filters what substances go in and out of the cell. If there is too much of a substance in a cell the plasma membrane quickly disposes it and when there is not enough of a substance in a cell the plasma membrane lets the substance in.The plasma membrane uses selective permeability to maintain homeostasis in a cell by eliminating wastes and taking in needed items.
Are substances transfered in or out of the cells?
Both, animal and plant cells have a cell membrane. It is semi permeable. This means it only lets certain things in and certain things out. For instance, oxygen or H20 ( water ) need to go in to a cell. The cell membrane allows these to go in as they are needed and they are the right "size". But through osmosis( google it if you are unsure what it is ) water may move out of a cell. To answer your question substances travel in and out of cells.
How does the structure of the plasma membrane allow materials to move across it in both directions?
The structure of the plasma membrane consists of the phospholipid bilayer, which gives it a fluid structure, and not rigid, allowing the materials ease to pass through. Next, there are also integral proteins which can be thought of as 'tunnels', allowing the materials to come in and out. Then, there are peripheral proteins which also aid in getting the materials inside an out. On the cell membrane, there are receptors which recognize outside materials, and if they are really big, the cell engulfs these molecules through endocytosis [pinocytosis, and phagocytosis, which are basically for liquid molecules, and solid molecules]. This takes us back to the fluidity of the cell membrane. That's roughly how the cell membrane allows for the entering and exiting materials.
