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Which structure regulates passage of molecules into and out of cells?
Wiki User
∙ 9y ago
The cell membrane is a membrane separating the inside of the cell from the outside environment. This structure is also known as the plasma membrane or the cytoplasmic membrane.
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoThe plasma membrane regulates passage of molecules into and out of cells.
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What is the function of a cells selectively permeable membrane?
Regulates what enters and leaves the cell
Which structure is in both plant cells and animal cells controls the passage of substances into and out of cells?
The cell membrane is specially adapted, as it is selectively permeable.
Describe the purpose of hierarchy of structural organization?
Atoms, molecules, organelles, cells, tissues, organs, organ systems, organism. Each structure contains the structure before it. An organism is made up of organ systems, an organ system is made up of organs, organs are made up of tissues, cells are made up of organelles, organelles are made up of molecules, and molecules are made up of atoms.
What biological molecules are used to store energy in living organisms vary in structure and make up most of cell membrane?
ATP cells
Explain why osmosis is important to cells?
Because it regulates the absorption and movement of water across the cells.
What is the function of passage cells in the endodermis of root?
In endodermis the passage cells passes the water molecules from the cortex to the protoxylem. Passage cells prevent the re entry of water molecules into the cortex.
Which structure regulates gas exchange during the processes of photosynthesis and respiration?
guard cells
What function of the cell membrane in all cells?
Maintains the shape of the cell and regulates the passage of what substances go in and out of the cell
What allows the passage of small molecules between animal cells?
The answer is gap junctions
What is the body system that regulates the passage of oxygen and nutrients to the cells and takes waste from them?
AnswerThe circulatory system. No iTz Respiratory Sytem
Fenestrated capillaries have?
Pores (fenestrae) through the cells that allows the passage of large molecules such as protiens.
What is the structure that connects the circulation of the fetus and the mother but blocks the passage of blood cells?
The placenta
What structure is directly involved in the passage of electrical signals between cells?
gap juntions
What is a small protein channel that allows the passage of ions and small molecules between cells?
Gap Junctions
How molecules come together to make organelles within cells?
Well Molecules make Cells which Helps it make the Structure of an organ which helps make organelles wich make cells. and thats HOW!!!!
What types of cells either form a barrier that controls passage of molecules or forms glands?
Epithelial Tissue
Why cant big molecules pass through wall guts?
The cell walls of the intestinal cells do not allow the passage of large molecules through them; in addition, the tight junctions between the cells blocks the transfer of large molecules through the interstitial space.
