The structure that increases the surface area of the small intestine are the villi and the _______
Fill in the blank(s) with the appropriate word(s).
microvilli
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Syphilis was once treated by intentionally infecting the patient with the parasite that causes malaria, a disease characterized by repeated bouts of fever, shaking, and chills
Why might this treatment cure syphilis? A. Malaria parasites produce strong antibacterial compounds (since they're eukaryotic in nature-they are trying to eliminate their competition for resources). This helps to eliminate ALL bacteria in and on the human body for a short period of time. B. Malaria parasites track down and feed upon ALL bacterial cells in the human body as a part of their life cycle. This makes them a "natural antibiotic" of sorts, and highly effective at clearing the bacterial infection of syphilis. C. One of the side effects of malarial infection is a massive overproduction of macrophages-so many that they become the dominant cell type in the blood (even over red blood cells!). This drives up the ability to ingest and destroy any microbe, including the bacterium that causes syphilis. D. The effect of driving up the body temperature for periods of time can shut down the temperature-sensitive replication of the bacterium that causes syphilis. This gives the immune system time to eliminate it properly.
A plant will usually wilt when which component of water potential reaches 0 MPa?
A. Total water potential B. Turgor pressure C. Gravity potential D. Solute potential
What happens to glutamic acid 35 and aspartic acid 52 at the end of the reaction?
A.) both amino acids are restored to their original forms B.) glutamic acid is deprotonated and negatively charged C.) lysozyme is destroyed and recycled as the product is released D.) aspartic acid has formed a covalent bond with the first sugar
All of the following are characteristic of the Group A beta-hemolytic streptococci EXCEPT
A) methicillin resistance. B) M proteins. C) the ability to damage cell membranes. D) the ability to dissolve blood clots. E) hyaluronidase production.