Platelets will release prothrombin activator at the site of an injury to initiate the clotting sequence.
Answer the following statement true (T) or false (F)
True
It is true that platelets will release prothrombin activator at the site of an injury to initiate the clotting sequence.
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The actual transport of protons by the proton pump is mediated by a transmembrane protein which undergoes a change in its
A. conformation. B. amino acid sequence. C. net charge. D. solubility. E. immunity.
Placing celery sticks in fresh water will make them more turgid and harder. This is because
A. the celery is hypotonic to fresh water. B. the celery is hypertonic to fresh water. C. the celery is isotonic to fresh water. D. water moves from the celery sticks into fresh water. E. None of the choices are correct.
Monoclonal antibodies are those that:
a. react with many different types of anti-gens. b. react with many species of bacteria within the same genus. c. are produced by the offspring of a single hybrid cell. d. can be produced from many different spe-cies of host organisms.
Which type of molecule organizes transmembrane proteins into lipid rafts?
a. phospholipid b. glycolipid c. cholesterol d. glycoprotein