Answer:
Passive transport involves movement of substances from areas of higher concentration to areas of lower concentration.
Explanation:
Passive transport involves the passage of substances through a semi-permeable membrane, as occurs with transport at the level of cell membranes.
Generally, passive transport occurs with the <u>movement of compounds from the space with the highest concentration of a specific substance to the space with the lowest concentration of the same substance</u>, following the so-called concentration gradient. Theoretically, the gradient tends to disappear when the concentrations of substances have balanced out.
Regarding other options:
<em> A. </em><u><em>From areas of lower concentration to areas of higher concentration</em></u><em>. It is a feature of active transport.</em>
<em> C. </em><u><em>From areas in which the concentration has reached a balance</em></u><em>. There is no passive transport</em>
<em> D. </em><u><em>From areas of differing concentrations with the use of cellular energy</em></u><em>. Energy use involves active transport.</em>
Vitamins are not a source of energy because they are essential nutrients that the body needs. Vitamins are needed to help the body function, they are not direct energy but they help it to break down fats, proteins, and carbs into sugars and enzymes that help it to improve.
Answer:
Cell Wall
Explanation:
Animal cells do not have cell walls, so their membranes act as walls. Therefore if put as an analogy, A function of the cell membrane in an animal cell is to a plant cell's wall.
Answer:
When a cyclic AMP is dissolved in water it loses its bond between its P atom and its main aromatic ring. In the pictures attached, is shown in red the bond that's lost. The cyclic AMP is a messenger involved in many biological processes.
