Matt is studying how the protein transferrin enters cells. He examines cells that have taken up transferrin, and finds clathrin-coated vesicles. What mechanism was used to take transferrin into the cell?
A. Phagocytosis
B. Pinocytosis
C. Exocytosis
D. Receptor-mediator endocytosis
D. Receptor-mediator endocytosis
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Down syndrome can be caused by either trisomy 21 or a Robertsonian translocation
a. True b. False Indicate whether the statement is true or false
Plant proteins generally are missing some vital amino acids. They are therefore called ________
Fill in the blank(s) with correct word
Acute Glomerulonephritis is a sequalae of repeated infection with Streptococcus pyogenes. The pathogenesis involved in this complication is antigen-antibody complex precipitation on the surface of the glomerulous cell membrane
a. true b. false
The right and left medial nasal prominences fuse to form all of the following structures, EXCEPT
A. Ala of Nose B. Columella of Nose C. Crest of Nose D. Philtrum of Upper Lip E. Tip of Nose