About What Time Does PI(4,5)P₂ Disappear from a Site of Endocytosis

question 145

Multiple Choice

About what time does PI(4,5) P₂ disappear from a site of endocytosis?

• A)about the time the coated pit forms
• B)about the time the coated vesicle is pinched away from the plasma membrane
• C)when the ligand binds to the receptors
• D)well after the vesicle has pinched away from the plasma membrane
• E)as the coated pit rounds into a larger coated pit

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Definitions:

Proteins

Large, complex molecules that play many critical roles in the body, including catalyzing metabolic reactions, DNA replication, and transporting molecules.

Nucleases

Enzymes that break down nucleic acids by cleaving the phosphodiester bonds between nucleotides.

Nucleotides

Organic molecules that serve as the monomers, or subunits, of nucleic acids like DNA and RNA, consisting of a base (adenine, thymine, guanine, cytosine, or uracil), a sugar molecule, and one or more phosphate groups.

Gastrocolic Reflex

Local reflex resulting in mass movement of the contents of the colon, which occurs after the entrance of food into the stomach.