#Question id: 2517
#Unit 2. Cellular Organization
Which types of cell motility can occur in the presence of actin alone (without myosin)?
#Question id: 2518
#Unit 2. Cellular Organization
In an analogy between skeletal muscle motility and a railroad, if actin is the railroad tracks and ATP is the diesel fuel, what is the locomotive?
#Question id: 2519
#Unit 2. Cellular Organization
If you compared under the microscope a contracted sarcomere to a relaxed sarcomere, which of the following regions would not differ in width?
#Question id: 2520
#Unit 2. Cellular Organization
During the course of a muscle twitch (a contraction due to a single action potential), when is the free calcium concentration of the muscle cytoplasm highest?
#Question id: 2521
#Unit 2. Cellular Organization
The sarcoplasmic reticulum must have integral membrane proteins that can:
#Question id: 2522
#Unit 2. Cellular Organization
The diversity of roles played by microtubules largely results from the diversity of tubulin isoforms that make up the filaments. What accounts for the diversity of roles played by microfilaments?