What role does clathrin play in receptor-mediated endocytosis?
a. Clathrin is the receptor where the highly specific binding takes place.
b. Clathrin initiates the transcription of the receptor proteins that will coat the pit.
c. Clathrin attaches to the plasma membrane’s cytoplasmic side, forming the coated pit.
d. Clathrin production blocks the formation of the coated pit.
c. Clathrin attaches to the plasma membrane’s cytoplasmic side, forming the coated pit.
You might also like to view...
The general name for enzymes that catalyze RNA synthesis directed by a DNA template is:
A. RNA synthetase. B. RNA polymerase. C. polynucleotide phosphorylase. D. RNase. E. DNA polymerase.
If a bacterial cell encounters unfavorable environmental conditions, then its metabolism will begin to slow until it eventually transforms into an inactive, dormant state. This survival me-chanism is known as:
a. polymerization. b. oxidation. c. respiration. d. sporulation.
The various energy levels in an atom of magnesium ( 12
24 Mg) have different numbers of electrons. Use the following numbers to answer questions 68–70. a. 1 b. 2 c. 3 d. 6 e. 8 D 68. number of electrons in the first energy level D 69. number of electrons in the second energy level D 70. number of electrons in the third energy level
Which of the following is most directly responsible for water's unique properties?
a. It contains oxygen atoms. b. It contains hydrogen atoms. c. It is an ionic compound. d. It forms hydrogen bonds. e. It is nonpolar.