Well I'm not exactly certain where the teacher is going with this, but an often used example is red blood cells (RBCs) aka: erythrocytes.
RBCs are suspended in blood plasma as they flood through vessels around and around the body, so the osmolarity (amount of small particles that affect osmosis) must remain relatively constant. This is termed "isotonic", meaning the same amount of osmosis-influencing particles that are there inside the RBCs' cytosol, within their plasma membranes.
If the plasma osmolarity get too high, called hypertonic (as with extra salt particles) then water inside the RBCs will have an osmotic force driving it out of the cells' membranes, to flow where there are more salt particles. This will lead to cell shrinkage (called "crenation").
Counter to that, if the plasma osmolarity gets too low, as due to low plasma salt with excessive water intake (for example from the condition "water intoxication"), then the plasma will be hypotonic with respect to the intracellular cytosol concentration. This can result in water rushing into the RBCs' membranes via osmosis, causing the cells to swell from discs into spheres (balls), or even rupture and burst (a phenomenon called "hemolysis").
HOPE THOSE EXAMPLES HELP!!
<span>Unconditional Stimuli</span>
Diet and weightloss advertising puts super skinny models and actors/actresses saying they lost an insane amount of weight using their product. That is completely bias because they aren’t just going to say the model lost weight through other methods of weight loss because they are advertising THEIR product.
I would use skepticism evaluating these ads because I would be skeptical believing that someone lost 200 pounds in 2 months drinking some supplement.
Answer:
It contains only about an eighth of our sun's mass. Faint red Proxima Centauri is only 3,100 Kelvin (5,100 degrees F or 2,800 C) in contrast to 5,778 K for our sun. So Proxima is 500 times less bright than our sun.
Explanation:
Physical Quantities are those quantities that can be measured, either directly or indirectly.
Example : the SPEED of light, MASS of Earth, TEMPERATURE of the Sun, LENGTH of the cardboard, FORCE, TORQUE, etc
(The quantities in bold are physical ones)
Non- Physical Quantities are those which cannot be measured directly or indirectly.
Example : Your LOVE, basically all the feelings
Sponsored by Blissy
This pillowcase is quickly becoming the must-have gift of 2020.
Consumers all over want to get their hands on the Blissy pillowcase.
Learn More
Profile photo for Ali Abdulla
Ali Abdulla
, professor of physics
Answered 3 years ago · Author has 12.3K answers and 3.6M answer views
