Ch. 9 - Transport Across MembranesWorksheetSee all chapters
All Chapters
Ch. 1 - Overview of Cell Biology
Ch. 2 - Chemical Components of Cells
Ch. 3 - Energy
Ch. 4 - DNA, Chromosomes, and Genomes
Ch. 5 - DNA to RNA to Protein
Ch. 6 - Proteins
Ch. 7 - Gene Expression
Ch. 8 - Membrane Structure
Ch. 9 - Transport Across Membranes
Ch. 10 - Anerobic Respiration
Ch. 11 - Aerobic Respiration
Ch. 12 - Photosynthesis
Ch. 13 - Intracellular Protein Transport
Ch. 14 - Cell Signaling
Ch. 15 - Cytoskeleton and Cell Movement
Ch. 16 - Cell Division
Ch. 17 - Meiosis and Sexual Reproduction
Ch. 18 - Cell Junctions and Tissues
Ch. 19 - Stem Cells
Ch. 20 - Cancer
Ch. 21 - The Immune System
Ch. 22 - Techniques in Cell Biology

Concept #1: Neuron Structure

Concept #2: Action Potentials

Concept #3: Neuronal Signaling Steps

Concept #4: Neurotransmitters

Practice: Match the following neuron structure with its definition 

i. Cell Body                  ____________ 

ii. Myelin Sheath         ____________ 

iii. Nerve Terminal       ____________ 

iv. Nodes of Ranvier   ____________ 

v. Synapse                   ____________ 


a. Junction through which the signal is transmitted 

b. End of the axon that branches to pass the neurons message to many cells 

c. Core of the neuron 

d. Insulates the axon so ions do not leak out of the membrane 

e. Patches of ion channels that interrupt the sheath for neuron signaling

Practice: What neuron structure is responsible for ensuring that ions do not leak out of the axon membrane?

Practice: The opening of which type of channel causes depolarization of the neuron?

Practice: An influx of calcium at the synapse causes what to happen?

Practice: Which of the following neurotransmitter types blocks Cl- channels and makes depolarization harder?

Practice: Potassium channels are mainly responsible for what?