Endotoxins differ from exotoxins in that only endotoxins:

A. Are found only in Gram-negative bacteria
B. Have aspecific site of action on animal cells
C. Are proteins
D. Are secreted during the log phase
E. Are usually sensitive to heat


Ans: A. Are found only in Gram-negative bacteria

Biology & Microbiology

You might also like to view...

________ and ________ groups are negatively charged functional groups of carbon, whereas the ________ group is a positively charged functional group.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The structure, function, and assembly of microtubules are regulated by ________ proteins (MAPs).

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Which three stages or transitions in the cell cycle seem to serve as points of control (checkpoints)?

What will be an ideal response?

Biology & Microbiology

What are protobionts?

a. a group of abiotically produced organic molecules surrounded by a membranelike structure b. a group of biotically produced inorganic molecules surrounded by a membranelike structure c. a group of biotically produced organic molecules surrounded by a membranelike structure d. a group of abiotically produced inorganic molecules surrounded by a membranelike structure

Biology & Microbiology