Biophysics | Senioritis

Mohamed Abbas
July 4, 2023
Biophysics

Calculating the Time Required for a Motor Protein to Transport a Molecule 1 Meter: Conversion and Formula Analysis

Besides diffusion, cells can also move molecules using motor proteins. Many motor proteins move at about 10 micrometers/second. Given this information, how many hours will it take...

Mohamed Abbas
July 4, 2023
Biophysics

Understanding the Active Properties of Neurons: Action Potentials, Ion Channels, Refractory Periods, and Myelination.

Previously, we talked about the differences between active and passive properties of a neuron. Which of the following are examples of active properties that will allow a...

Mohamed Abbas
July 4, 2023
Biophysics

The Role of Sodium Ions in Neuronal Depolarization and Action Potential Initiation

Let’s form some intuition about how an action potential propagates. If one point along the axon is stimulated such that an action potential is initiated, what ion...

Mohamed Abbas
July 4, 2023
Biophysics

Understanding the Propagation of Action Potentials: How Ions Flow and Membrane Potential Changes

As these ions flow into the axon, this section of the membrane becomes depolarized. In adjacent parts of the membrane, how will the membrane potential change? When...

Mohamed Abbas
July 4, 2023
Biophysics

Understanding Action Potential Propagation: The Rapid Transmission of Electrical Signals Along Cell Membranes

True or False: An action potential in one section of the membrane can cause the initiation of an action potential in adjacent sections of the membrane True...

Mohamed Abbas
July 4, 2023
Biophysics

Understanding Oscilloscope Readings: Analyzing Electrical Waveforms Produced by a Stimulation Device

What will we see on the oscilloscope when you activate the stimulator? When you activate the stimulator and observe it on the oscilloscope, you will typically see...

Mohamed Abbas
July 4, 2023
Biophysics

Understanding the Phases of the Action Potential Waveform: A Comprehensive Analysis of Voltage Changes during Cell Membrane Activation

What will a plot of action potential voltage versus distance look like? A plot of action potential voltage versus distance typically follows a specific pattern, known as...

Mohamed Abbas
July 4, 2023
Biophysics

Optimizing Action Potential Propagation in Long Axons: Insights into Axon Length and Adaptations for Efficient Transmission

True or false?: the limitations of action potential propagation keep axons from being more than a few mm long. False False. The limitations of action potential propagation...