Exam 3: Bacterial Cell Structure

__________ are carrier proteins embedded in the membrane that increase the rate of diffusion of specific molecules across selectively permeable membranes.

Predict the change in surface area and volume of a spherical cell if the diameter of the cell doubles:

Bacterial flagella are composed of three parts: the ______ body,which is embedded in the cell,the hook,and the _______,which is the longest part of the flagellum.

_______ bind ferric iron and transport it into a bacterial cell.

In many spirochetes,multiple flagella combine to form a bundle known as a(n)____________ fibril,which winds around the cell and confers motility on the cell.

Proteins that are embedded within the cytoplasmic membrane and not easily extracted are called __________ proteins.

The term used to describe bacteria that are intermediate in shape between spherical and rod-shaped is

Bacterial and archaeal ribosomes are known as _____ ribosomes,based on their sedimentation coefficient.