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True or False: When solutes participate in diffusion, they will move from areas of lower concentration to areas of higher concentration.

Active transport moves molecules from areas of    (high or low)    concentration to areas of    (high or low)    concentration. In other words, it goes    (down or against)    the concentration gradient.

All of the following are functions of the smooth ER except:

________________________ is when molecules are secreted out of the cell by the fusion of a vesicle with plasma membranes, whereas ___________________ is when molecules and particles are brought into the cell by forming new vesicles from the plasma membrane.

Which of the following most accurately defines an enzyme?

The primary role of ______________________ is to perform cellular respiration, whereas _____________________ perform photosynthesis.

The phospholipid bilayer of cells regulates what can cross its membrane, with some substances crossing more easily than others. What is this concept called?

True or False: The Endoplasmic Reticulum is continuous with the nuclear envelope.

All of the following are similarities between eukaryotic and prokaryotic cells except