Exam 3: A: Anatomy of Cells

Three ribosomal subunits must come together to form a functioning ribosome.

One important function of integral membrane proteins is signal transduction or carrying messages across the cell membrane.

Cell connections called desmosomes are like Velcro holding cells together.

Cytoplasm is another term for cytosol.

Heart muscle cells are joined by gap junctions to facilitate the movement of electrical impulses.

Ribosomes attached to the endoplasmic reticulum are responsible for making proteins to be exported out of the cell.

The number of mitochondria in a cell is basically related to its degree of cell activity.

Primary cilia can act as sensory organelles.

One of the main functions of the mitochondria is to supply the cell with ATP.

The fluid mosaic model describes the chromatin material found in the nucleus.

Glycoproteins on the cell membrane identify the cell as "self."

The proteasomes contain enzymes that assist in protein synthesis.

A major part of ribosomes is deoxyribonucleic acid.

The watery fluid in the cell is called cytosol.

Proteasomes only destroy abnormal or misfolded proteins in the cell.

Two types of lipids,phospholipids and cholesterol,are important molecules in the cell membrane.

Microtubules are sometimes called the engines of the cell.

The body of a female does not produce cells with flagella.

A complete ribosome only exists when it is making a protein.