What are the three strategies for defending against foreign organisms, cells, or molecules?
What will be an ideal response?
(1 ) Prevent foreign cells or molecules from entering the body. (2 ) Attack any foreign cell or molecule that enters the body. (3 ) Destroy the specific foreign cell or molecule that enters the body, and remember it.
You might also like to view...
You are asked to determine whether sulfur bacteria are active in a particular area of an estuary. What observations or tests can you perform to confirm this activity?
What will be an ideal response?
During anaerobic respiration, a compound can serve as an electron donor as long as the ________ of the redox couple is ________ electronegative than that of the acceptor couple
a. E0´ / less b. E0´ / more c. ?G0´ / less d. ?G0´ / more
An allosteric inhibitor does which of the following?
a. decreases the concentration of an inactive enzyme. b. changes the shape of an enzyme. c. increases the concentration of a product. d. changes the shape of a substrate. e. increases the concentration of an enzyme-substrate complex.
An organism found in coastal waters that causes a food infection and gastroenteritis due to a variety of contaminated raw and undercooked seafood is
A. Chlamydia trachomatis. B. Helicobacter pylori. C. Vibrio parahaemolyticus. D. Campylobacter jejuni. E. Vibrio cholerae.