Exam 3: Bacterial Cell Structure

The cell membrane is a rigid structure that provides bacteria with their characteristic shapes.

The term used to describe bacteria that are shaped like curved rods is

The concept of a prokaryote was first fully outlined in 1962 by

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

The movement of molecules from an area of higher concentration to an area of lower concentration without the participation of specific carrier molecules is called

You discover a new transport system used by a newly discovered bacterial species.The sugars that are transported using this system are phosphorylated as they enter the bacterial cell.You would describe this transport system as a(n)_____.

Which of the following is not considered a macronutrient?

The movement of molecules across a membrane from an area of lower concentration to an area of higher concentration with the expenditure of energy is called

Proteinacious projections from the surface of a bacterium that are used to mediate conjugation are called sex __________,whereas projections that mediate attachment to surfaces such as host cells are called __________.

The power used by most bacterial flagellar motors is produced by

__________ membranes allow some molecules to pass but not others.

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

_______ are the site of protein synthesis in the cell.

A branched network of hyphae formed by the Actinomycetes is called a __________.

Bacterial cells that are variable in shape are called

The cytoplasmic membrane of bacteria

The genus of bacteria that undergoes cell division in random planes,forming grape like clusters of round bacteria,are the __________.

Gram-positive bacteria have a thinner layer of peptidoglycan than gram-negative bacteria.

Rigid bacteria with a helical cell shape are called

Bacteria have a region of the cytoplasm known as the __________,which is not bounded by a membrane but contains the chromosome.