Bacteria and Cell Structures

Which structure is responsible for the shape of bacterial cells?

• Cell Membrane
• Cell Wall
• Plasma Membrane
• This depends on the type of cell

The cell wall can prevent the bacterial cell from rupturing when...

• The pressure outside is greater than the pressure on the inside of the cell.
• The pressure outside is less than the pressure on the inside of the cell.
• The pressure is the same inside and outside the cell.
• there is no pressure inside or outside the cell. 

What structure can be anchored to the cell wall? 

• Nucleic acids
• Ribosomes
• Glycocalyx
• Flagella

The peptidoglycan in cell walls consists of ....

• monosaccharides attached to polypeptides
• polysaccharides attached to peptides
• disaccharides attached to polypeptides
• sugars attached to an amino acid

The monosaccharides NAG and NAM are related to which sugar?

• glucose
• fructose
• lactose
• maltose

What is another name for murein?

• NAM
• monosaccharide
• peptidoglycan
• NAG

Which statement is true regarding the cell wall of Gram+ bacteria?

• Contains a thin layer of peptidoglycan.
• Contains no layers of peptidoglycan.
• Contains a thick layer of peptidoglycan.
• The cell wall does not have peptidoglycan but the cell membrane does contain it. 

Which statement is true regarding the cell wall of Gram- bacteria?

• Contains a thin layer of peptidoglycan.
• Contains a thick layer of peptidoglycan.
• Does not contain peptidoglycan.
• Gram- bacteria do not have a cell wall.

Which of the following are more susceptible to mechanical breakage because of the composition of its cell wall?

• Gram- bacteria
• Gram+ bacteria
• Neither Gram- or Gram+ bacteria
• Both Gram- and Gram+ bacteria

Which of the following provides a barrier to certain antibiotics, digestive enzymes such as lysozyme, detergents, heavy metals, bile salts, and certain dyes?

• The cell wall
• The glycocalyx
• The cell (plasma) membrane
• The outer membrane