Bio 231C Cells - Fill-in-the-Blank Practice (15 flashcards)

15 fill-in-the-blank flashcards covering cell components, plasma membrane structure, transport mechanisms, and basic cell processes.

The three main components of a cell are the plasma membrane, cytoplasm, and .

nucleus

The outer boundary of a cell is the .

plasma membrane

The region that contains most organelles is the .

cytoplasm

The nucleus controls cellular activities and is the of the cell.

control center

The plasma membrane is described by the model.

fluid mosaic

Integral form the glycocalyx.

proteins

The plasma membrane is a bilayer.

phospholipid

The molecule that stabilizes the membrane is .

cholesterol

Simple diffusion moves molecules down their gradient.

concentration

Osmosis is the diffusion of across a membrane.

water

Active transport moves substances their concentration gradient.

against

Endocytosis is the mechanism by which particles cells.

enter

Insulin and cholesterol enter cells by endocytosis.

receptor-mediated

Exocytosis moves substances out of the .

cell

Ribosomes are the site of synthesis.

protein