1. A signal molecule in the interstitial fluid binds to a receptor on the cell m

Question

1.   A signal molecule in the interstitial fluid binds to a receptor on the cell membrane, triggering an intracellular cascade. Which function of the cell membrane does this scenario illustrate?   

a. separates the intracellular fluid from the extracellular fluid  

b. enables cell to recognize and respond to external environment

c. helps maintain cell shape  

d. regulates entry and exit from the cell

e. does not illustrate a function of the cell membrane

2.   Such a receptor that initiates an intracellular cascade when its ligand binds is formed by: (10 pts)

a. transmembrane proteins b. membrane-spanning proteins c. peripheral proteins d. both a and b

Explanation / Answer

1. b enables cell to recognize and respond to external environment

2. b membrane spanning proteins

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.