Multiple Choice
In the context of cell signaling, which of the following best explains why an infant might become unresponsive to a hormone after repeated exposure?
17
views
10. Cell Signaling
Introduction to Cell Signaling
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following best describes the role of a ligand in cell signaling?
A
A ligand binds to a receptor to initiate a cellular response.
B
A ligand is a type of enzyme that catalyzes signal transduction.
C
A ligand is a structural protein that maintains cell shape.
D
A ligand acts as a membrane channel for ions.
Verified step by step guidance1
Step 1: Understand the concept of cell signaling. Cell signaling is the process by which cells communicate with each other to coordinate various functions. It typically involves a signaling molecule (ligand), a receptor, and a cellular response.
Step 2: Define what a ligand is. A ligand is a molecule that binds specifically to a receptor on the surface or inside a cell. This binding triggers a series of events leading to a cellular response.
Step 3: Analyze the options provided. Evaluate each statement to determine which one accurately describes the role of a ligand in cell signaling. For example, a ligand is not an enzyme, structural protein, or membrane channel.
Step 4: Focus on the correct description. The correct role of a ligand is to bind to a receptor, which initiates a signal transduction pathway resulting in a cellular response.
Step 5: Conclude that the correct answer is: 'A ligand binds to a receptor to initiate a cellular response,' as this aligns with the biological function of ligands in cell signaling.
5:03mWatch next
Master Introduction to Cell Signaling with a bite sized video explanation from Jason
Start learningRelated Videos
Related Practice
Introduction to Cell Signaling practice set
Problem sets built by lead tutorsExpert video explanations