Question

1. Placing a Gram positive bacterial cell in a hypotonic environment will most likely

A. swell and lyse the cell.

B. shrink and shrivel the cell.

C. swell but not lyse the cell.

D. have no effect on the cell

2. Mutations to which of the following structure(s) will cause harm to a Gram positive cell? (Choose all that apply)

A. Lipoteichoic Acids/Teichoic Acids

B. Plasmid

C. LPS

D. Nucleoid

E. Outer Membrane

Answer 1

1. A. swell and lyse the cell.

Placing a Gram positive cell in a hypotonic environment will make the cell swell and lyse.

2. A. Lipoteichoic Acids/Teichoic Acids

D. Nucleoid

Gram positive cells possess teichoic acid and a nucleoid. Therefore mutations to techoic acid and nucleoid will cause harm to a Gram positive cell.