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Cell walls (membrane) have a layer of a type of fat called phosphor lipid)
Gasses such as oxygen and carbon dioxide can pass through the cell membrane through the process of diffusion (as in gas exchange in the lungs) from an area of high concentration to an area of low concentration.
Water can pass into the cell if the membrane is "selectively permiable" via the process of Osmosis. Osmosis can make water cross a membrane according to the amount of solutes in the water (sodium etc). The water will move where there is higher concentration of solutes. without letting the sodium though.
Other molecules such as Sodium, Potassium, Calcium, Glucose (all large molecules) cannot diffuse across the membrane into cells so they use dedicated protein channels embedded into the membrane. These channels can act as "switched gates" that can be opened or closed by other chemicals, this controls the amount of substances in and out of the cell.
Special Sodium, Potassium and Calcium channels (ion channels) which are opened when voltage in the cell increases and triggers the "open switch" letting in high levels of these molecules which results in a further increase in the cell voltage (action potential) which is the main mechanism for muscle contraction.
I hope this helps and is not too complicated. This is a subject that can get very involved but ive included some terms you can research further which can maybe help you out.
Check out diffusion (passive transport), Osmosis and action potential for further reading :)
Sources: Studied biochemistry
What else can I help you with?
Through what structure does water oxygen and carbon dioxide can enter a cell?
Water, carbon dioxide and oxygen can enter a cell through the plasma membrane.
What is the gas that enters through the stomata?
Both carbon dioxide and oxygen found in air enters through the stomata. More at Link
What can Water oxygen and carbon dioxide can enter a cell through?
Through the cell membrane.
Which gases will be exchanged in the stomata?
Oxygen and carbon dioxide. (O2) and (CO2)
How do you make oxygen in alchemy classic?
In Alchemy Classic, you can create oxygen by combining carbon dioxide and water. This can be achieved by first creating carbon dioxide through various combinations and then combining it with water to form oxygen.
Through what structure does water oxygen and carbon dioxide can enter a cell?
Water, carbon dioxide and oxygen can enter a cell through the plasma membrane.
What elements are cycled through the processes of photosynthesis and cellular respiration?
In photosynthesis, carbon dioxide and water are used to produce glucose and oxygen. In cellular respiration, glucose and oxygen are used to produce energy (ATP), carbon dioxide, and water. So, carbon and oxygen are elements that are cycled through both processes.
Write a procedure for distinguishing between oxygen gas and carbon dioxide gas?
If carbon dioxide and oxygen are bubbled through lime water separately the lime water through which carbon dioxide has been bubbled turns milky while the lime water through which oxygen is bubbled remains unaffected.
What can pass through the stomata?
Oxygen, Carbon Dioxide and Water
What is the gas that enters through the stomata?
Both carbon dioxide and oxygen found in air enters through the stomata. More at Link
What does a plant convert carbon dioxide into?
A plant converts carbon dioxide into oxygen through the process of photosynthesis. This process involves capturing sunlight energy to convert carbon dioxide and water into glucose and oxygen.
Does sweat contain oxygen or carbon dioxide?
No, sweat does not contain oxygen or carbon dioxide. Sweat is primarily composed of water and electrolytes such as sodium and potassium. Oxygen and carbon dioxide are exchanged through the lungs during respiration.
What can Water oxygen and carbon dioxide can enter a cell through?
Through the cell membrane.
Which gases will be exchanged in the stomata?
Oxygen and carbon dioxide. (O2) and (CO2)
How is carbon dioxide split into carbon and oxygen?
Carbon dioxide is split into carbon and oxygen through a process called photosynthesis, which occurs in plants. During photosynthesis, plants use sunlight to convert carbon dioxide and water into glucose (sugar) and oxygen. The carbon from the carbon dioxide is incorporated into the glucose, while the oxygen is released into the atmosphere as a byproduct.
What are the word equations for processes that release or store carbon doixide?
Some of the process that fix carbon dioxide are limewater + carbon dioxide equals calcium carbonate + water. Another is calcium carbonate + water + carbon dioxide = aqueous calcium bicarbonate. These equations work in reverse to release carbon dioxide.
How do carbon dioxide oxygen and water pass into and out of a leaf?
Carbon dioxide enters the leaf through small openings called stomata. Inside the leaf, carbon dioxide is used in photosynthesis to produce oxygen and glucose. Oxygen and excess water exit the leaf through the stomata as byproducts of photosynthesis and transpiration, respectively.
