Diffusion
All ionic molecules and all large fat molecules. What can get in (without help) is water and dissolved gases.
All ionic molecules and all large fat molecules. What can get in (without help) is water and dissolved gases.
Air is dissolved in water; all gases have some solubility in liquids.
cell wall
cappillaries
The cell wall is the structure that provides support for the cell, allows gases and water to pass through, and provides protection by maintaining the cell's shape and rigidity. It is found in plant cells, bacteria, fungi, and some protists.
we can show that gases are dissolved in water by showing the gas escaping in the form of bubbles.
obviously :P
Water, sucrose, ions, amino acids and proteins with molecular weight less than 20,000 can pass through the cell wall
The main dissolved gases in water are oxygen, nitrogen, and carbon dioxide. These gases can enter water through the atmosphere, aquatic plants, and from the decomposition of organic matter. The concentration of dissolved gases in water can affect the health of aquatic organisms and overall water quality.
Rainwater can contain dissolved gases through a process called absorption. As rain falls through the atmosphere, it can absorb gases such as oxygen, nitrogen, and carbon dioxide. Additionally, interactions with organic matter and minerals in the environment can also contribute to the presence of dissolved gases in rainwater.
The cell membrane, also known as the plasma membrane, regulates the passage of gases and nutrients in and out of the cell. It is selectively permeable, allowing certain substances to pass through while blocking others. This control of movement helps to maintain the internal environment of the cell.