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WorksheetsAP Bio Insta-Review Topic 4.2: Intro to Signal Transduction
Total questions: 10
Worksheet time: 5mins
What is the first step of signal transduction?
Reception
Response
Transduction
What is a signaling molecule called?
Activator
Enhancer
Ligand
Repressor
The ligand travels through the signal transduction path.
True
False
All cells respond to the same ligand with the same response.
True
False
Which is a secondary messenger?
ATP
Ca2+
Hormone
Ligand
What is the signaling molecule & where does it bind?
Ligand; Enzyme
Ligand; Receptor
Substrate; Enzyme
Substrate; Receptor
Which of the following act as secondary messengers?
ATP and Ca2+
Ca2+ and cAMP
cAMP and ligand
Ligand and ATP
Different cells respond to the signal in the same way.
True
False
Muscle contraction occurs when the calcium binds in the muscular cells. Where is the calcium stored in the muscle cells?
Lysosome
Nucleus
Smooth ER
Vacuole
Calcium is stored in the smooth ER and allows for muscular contractions. How is calcium released from the smooth ER?
Active transport
Gated ion channel
Ion channel
Simple diffusion
