Malaria is caused by Plasmodium falciparum, a non-motile protist that contains a cluster of microtubules at one end of the cell. Once injected into the bloodstream, these microtubules are used to attach to red blood cells. In areas of the world where malaria is endemic, people have a relatively high incidence of the allele for
A. sickle cell.
B. blue eyes.
C. cystic fibrosis.
D. mental retardation.
E. hemophilia.
Answer: A. sickle cell.
You might also like to view...
Which of these functions does NOT relate to the liver?
a. detoxifies toxic substances b. produces bile c. produces amylase d. synthesizes lipoproteins e. turns glucose into glycogen
A solution having a pH of 8 is slightly acidic
__________________ Indicate whether the statement is true or false.
An antimicrobial that inhibits bacterial cell wall synthesis will result in which of the following?
A. Bacterial cells become more susceptible to osmotic pressure. B. Bacteria cannot attach to their hosts. C. Cytoplasmic membrane proteins lose their function. D. The sterols in the bacterial cell wall become nonfunctional. E. No change in bacterial cell activity.
Please select functions of the lymphatic system to test your understanding of its characteristics and functions.
> Provides a route for the return of extracellular fluid to general circulation > Carries away excess fluid from inflamed tissue > Conducts surveillance, recognition, and protection against foreign materials through a system of lymphocytes, phagocytes, and antibodies > Contains red blood cells for the transport of oxygen and carbon dioxide > Located in intestinal tissue to enhance the digestion of ingested food Provides a route for the return of extracellular fluid to general circulation Carries away excess fluid from inflamed tissue Conducts surveillance, recognition, and protection against foreign materials through a system of lymphocytes, phagocytes, and antibodies