Answer:
Facilitated diffusion
Explanation:
Facilitated diffusion is the transport of hydrophilic molecules that can not freely cross the membrane. Channel protein and many carrier proteins are in charge of this transport. When uncharged molecules cross the membrane, they do it according to their concentration gradients, going from the more concentrated side to the lower concentrated one. When ions need to cross the membrane, the process depends on an electrochemical gradient.
Facilitated diffusion is a passive transport process because they only depend on electrochemical gradients, so they do not need any energy to occur.
The smallest unit that has the basics of life
The three R's- reduce reuse and recycle all help cut down on the amount of waste we throw away. they conserve natural resources, landfill space and energy, plus, the three R's save land and money communities must use to dispose of waste in landfills
The cerebrum (brain) can be divided into two hemispheres: the left hemispheres and the right hemisphere. These hemispheres are separated by a deep longitudinal fissure (i.e., the cerebral fissure).
- In this case, the patient will be able to identify the cat using his RIGHT-HAND.
- The left brain hemisphere receives sensory information from and controls movements on the right part of the body, and vice-versa.
- In consequence, the left brain hemisphere controls the movements of the right hand, whereas the right brain hemisphere controls the left hand.
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there aren't many enzymes in food, mainly in fruits, the enzymes in friuts are very similar to ptylin found in the mouth that help break down sugar, they do not need to be ingested before they activate, a proof of this is the apple test, buy an apple, take a bite and leave it without covering it for a few minutes, you'll notice that the bitten part starts turning yellowish brown because the enzymes in the apple are already breaking it down.
In summary, they do not need to be ingested before activation, and the major characteristic of an enzyme is that they do not change after they react with (breakdown) food, so they are in the same form before and after they finish breaking down the food.
