Which structures are the primary cellular sites for the production of polypeptide chains?
a. Golgi bodies
b. ribosomes
c. mitochondria
d. lysosomes
e. smooth endoplasmic reticula
b
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Which of the following is NOT an example of an adhesion factor?
A. Lipoteichoic acid B. Glycocalyx C. Mucin D. Fimbriae E. All of the above are examples of adhesions
Which of the following is an example of a food intoxication?
A. Salmonellosis B. Listerosis C. Campylobacteriosis D. Vibrio enteritis E. Staphyloccocal enteritis
Answer the following questions true (T) or false (F)
1. Images of living specimens can be produced using atomic force microscopes. 2. Specimens are visible on a phase contrast microscope because they refract the light that illuminates them. 3. Reactions that are both catabolic and anabolic are amphibolic.
Pyruvate is an important metabolic intermediate that can be converted into several other compounds, depending on which enzyme is catalyzing the reaction. Which of the following cannot be produced from pyruvate in a single enzyme-catalyzed reaction?
(a) lactate (b) oxaloacetate (c) citrate (d) alanine