G. lamblia infection in the gut ____; therefore, some people may be benefited by the presence of this protist
a. reduces the risk of parasitic worm infection
b. increases the likelihood of getting irritable bowel disease (IBD)
c. inhibits fat uptake from food
d. causes no ill effect
e. increases the risk of rheumatoid arthritis
ANSWER: a
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Indicate whether this statement is true or false.
__________ is a set of methods that allow us to reconstruct phylogeny. Fill in the blank(s) with the appropriate word(s)
Maturation of the reproductive organs and the reproductive response is called
A) adolescence. B) longevity. C) puberty. D) morula. E) menopause.
A newly identified bacterial pathogen has been shown to cause disease in humans, disrupting the production of some proteins by interfering with the function of the endoplasmic reticulum of liver cells. Under specific growth conditions, this bacterial strain secretes a protein that appears to be responsible for the pathology of the disease. This protein is composed of two polypeptide chains, one of which binds to a receptor on the surface of liver cells, stimulating the uptake of the protein by endocytosis. Once inside the cell, the other polypeptide component interferes with the activity of ribosomes bound to the endoplasmic reticulum. This bacterial protein will most likely be classified as a/an __________.
A) superantigen B) A-B toxin C) invasin D) membrane-disrupting toxin E) bacterial kinase