The net movements of molecules of gasses and particles from a region of higher concentration to the region of lower concentration based on diffusion gradients without a separating medium is called Diffusion.
Osmosis is the movement of water molecules from the region from a region of higher water potential to that of lower water potential across a separating medium of semipermeable membrane.
Because of exposure of the lettuce to sunlight, there is rapid diffusion of water molecules from the cells of the lettuce on the sunny day than into the cells from the environment. Because the turgor pressure has dropped to zero, so water molecules diffuse from the region of higher water potential (the cells of the lettuce) to region of lower (sounding air). This results to shrinking of the cells, called witting.
However, as she waters the lettuce, water molecules diffuses into the cell and move up the cells through osmosis, the water molecules makes the lettuce cells turgid. The turgor pressure has returned to normal . This explains the firmness.
Water diffuses into the vacuole which has capacity to store water. The presence of water increases vacuole's volume which expands through osmosis, and therefore changes it shape. The changes in shape leads to firmness.
Ms. Milly can keep the stalk of the lettuce in flower pot filled with water. The continues to keep the cells of the lettuce turgid, by replacing the lost water through diffusion into the sunny environment to prevent wilting,
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<span>The correct answer is that its primary function is to connect, support and anchor various parts of the body. It can either connect bones, or it can connect muscles. It also ensures that they don't move in an unexpected manner and that your bones don't randomly fall out of sockets. It's very useful and you couldn't move without it.</span>
I think C, the egg is larger so contains more mitochondria. Reason is we maily obtain the mtDNA from our mothers :v
Answer:
Sickle cell anemia is one of a group of disorders known as sickle cell disease. Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body. Normally, the flexible, round red blood cells move easily through blood vessels.
Explanation:
Answer:
physical
Explanation:
example: water freezing into ice
there is no change in the chemical properties, frozen water is still water
