Question

nutrients and waste both enter and leave cells through a process called
a. effusion
b. diffusion
c. fusion
d. emulsion
please select the best answer from the choices provided.
o a
o b
o c
o d

Explanation:

• Effusion (A): Refers to gas passing through a small hole, not the general movement of nutrients and waste in cells.
• Diffusion (B): Is the process where substances move from an area of higher concentration to an area of lower concentration. This is how nutrients (like oxygen, glucose) enter cells (where they are in lower concentration initially) and waste (like carbon dioxide) leaves cells (as it is produced and accumulates, creating a higher - concentration inside the cell).
• Fusion (C): Involves combining two or more things into one, which is not related to the movement of substances in and out of cells.
• Emulsion (D): Is a mixture of two immiscible liquids (like oil and water in some salad dressings), not relevant to cellular transport.

Answer:

B. diffusion