Exam 5: Cell Structure

The functions of the nucleus are regulated by RNA.

Match each cell structure with its corresponding description or function. -Major source of ATP synthesis; the "powerhouse" of the cell

The inner membrane of what double-membrane structure is contorted into folds called cristae?

A major part of ribosomes is deoxyribonucleic acid.

The only structural difference between the rough and smooth endoplasmic reticulum (ER) is that the rough ER has ribosomes attached.

Match each cell structure with its corresponding description or function. -Functions in processing and packaging of protein molecules to be exported from the cell

In the cell membrane, the hydrophobic part of the phospholipid molecule:

Which of the following recognize and destroy nonself cells?

The nucleolus is made up of tightly coiled DNA.

Which type of cell connection acts like a "spot weld" to hold cells together?

The centriole is a single cylindrical structure at the boundary of the centrosome.

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

Which cell fiber is made of twisted strands of protein?

Projections from the cell that move materials and mucus are called:

Match each cell structure with its corresponding description or function. -Protein factory made up of two subunits

Which cell extension lacks a central pair of microtubules, is not found in blood cells, and functions in the kidney to monitor urine flow?

Tiny indentations of the plasma membrane that resemble caves are called:

The cell extension that assists epithelial cells in absorption is called:

A list of the cell fibers from largest to smallest would read:

Describe the structure and function of the nucleus. Include the structure and function of the nucleolus.