Cell Osmoregulation and Water Movement

Solute potential (Ψs) lowers the water potential, causing water to move toward regions of higher solute concentration, which can lead to water entering the cell.

Pressure potential (Ψp) is the force exerted by the cell wall against the expanding cytoplasm as water enters, which can limit the amount of water that accumulates in the cell.

In a hypertonic solution, water exits the cell, leading to cell shrinkage (crenation in animal cells) as it loses water to the environment.

<p>An isosmotic cell or isotonic solution is one where the solute concentrations inside and outside the cell are equal, resulting in no net movement of water.</p> Signup and view all the answers

<p>Osmoregulation is the process by which cells maintain fluid balance and homeostasis, adjusting their internal solute concentrations to cope with hypertonic or hypotonic conditions.</p> Signup and view all the answers

<p>Osmoregulation is the control of water balance in cells, crucial for preventing excessive shrinkage or bursting when the surrounding solution's concentration changes.</p> Signup and view all the answers

<p>Active transport is the movement of ions or molecules against their concentration gradient, requiring energy, such as the sodium-potassium pump which maintains osmotic balance in animal cells.</p> Signup and view all the answers

<p>Phagocytosis is the process of cell 'eating' solid material, while pinocytosis is the 'drinking' of liquid materials.</p> Signup and view all the answers

<p>The cell wall in plant cells provides structural support, preventing bursting when water enters, whereas animal cells rely on mechanisms like the sodium-potassium pump for osmoregulation.</p> Signup and view all the answers

<p>The rate of diffusion is influenced by factors such as concentration gradient, membrane permeability, and temperature.</p> Signup and view all the answers