TPA, or tissue plasminogen activator, is a compound sometimes given to a person suffering from a heart attack. Why would a compound that apparently activates plasminogen be useful in treating a heart attack?
What will be an ideal response?
Plasminogen is a protein that forms plasmin, a clot-dissolving enzyme that is naturally produced in the body. When blood clots inappropriately form, they can block blood flow to the heart, thus causing a heart attack. If the blood clots can be dissolved, then blood flow may be restored.
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The fluid that moves around in the circulatory system of a typical arthropod is _____
A) digestive juices B) hemolymph C) blood plasma D) cytosol
In which part of a sponge's body does fertilization occur?
A. the ostium B. the mesohyl C. the spicule D. the spongin E. the amoebocyte
Which of the following is NOT true of
kwashiorkor?
a. it is the result of a diet poor in fatty acids b. symptoms include brittle hair c. symptoms include muscle loss and fatigue d. symptoms include an enlarged liver e. all of these are true of kwashiorkor.
dental caries are a direct result of
What will be an ideal response?