Exercise 3

Mediates entrance and exit of substances into and out of the cell

Folds of the plasma membrane that increase its surface area

Area of the cell that includes the cytosol and organelles

Fluid portion of cytoplasm that surrounds organelles

Contains the cell's hereditary information in genes; directs cellular activities

Assembly site for ribosomes

Long thin strands within nucleus. Each strand composed of one DNA molecule and associated proteins.

Needed to from cilia and flagella; active in mitosis and meiosis

Makes ATP via aerobic cellular respiration

Phospholipid and carbohydrate synthesis; detoxifies toxic substances

Protein synthesis site

Processes secretory proteins that are made on the ribosomes

Membranous sacs; stores, alters and packages cellular exports

Digests worn-out organelles and substances that enter the cell

Three kinds of protein filaments; maintain cell shape and movement

Move fluids particles along a cell surface or move a one-celled organism

Longer than cilia; move cell. In humans, only found on sperm cells