Neurotransmission Essentials

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Test your grasp of neuron signaling basics.

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Robert Hentzel

United States

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Neurotransmission Essentials


Froggy Jumps Neurotransmission EssentialsOnline version Test your grasp of neuron signaling basics. by Robert Hentzel 1 What ions does the Sodium-Potassium Pump move, and in what amounts per cycle? a 3 Na+ out and 2 K+ in b 2 Na+ out and 3 K+ in c 3 Na+ in and 2 K+ out 2 What is the typical neuronal resting potential? a -90 mV b -40 mV c -70 mV 3 Which channels open in response to changes in membrane voltage? a Mechanically gated channels b Ligand-gated ion channels c Voltage-gated ion channels 4 How are neurotransmitters released into the synaptic cleft? a Endocytosis of receptors b Simple diffusion through membrane c Exocytosis of synaptic vesicles 5 EPSP effects on membrane potential and ion flow? a K+ efflux, hyperpolarization b Na+ influx, depolarization toward threshold c Cl- influx, hyperpolarization 6 Inhibitory postsynaptic potentials (IPSPs) commonly involve which ions/channels? a Ca2+ channels opening b K+ or Cl- channels opening c Na+ channels opening 7 Where are neurotransmitters stored before release? a Postsynaptic receptors b Axonal microtubules c Synaptic vesicles 8 Which process triggers an action potential to start along the axon? a Depolarization reaching threshold b Hyperpolarization c Repolarization 9 What ion influx triggers neurotransmitter release at the presynaptic terminal? a Ca2+ b Na+ c K+ 10 Ligand-gated ion channels open in response to what? a Voltage change b Binding of a neurotransmitter or chemical messenger c Mechanical stretch 11 Which process moves small, nonpolar molecules directly through the phospholipid bilayer? a Active transport b Simple diffusion c Facilitated diffusion 12 Osmosis is the movement of which substance across a semipermeable membrane? a Salt b Water c Glucose 13 Which transport requires energy (ATP) to move substances against their concentration gradient? a Osmosis b Facilitated diffusion c Active transport 14 What is the name of the lipid bilayer's model describing its fluid and mosaic nature? a Static Barrier Model b Fluid Mosaic Model c Rigid Lattice Model 15 Which term describes a solution with the same solute concentration as inside the cell? a Isotonic b Hypotonic c Hypertonic 16 What term describes the movement of water into a plant cell that prevents wilting in hypotonic environments? a Lysis b Turgor pressure c Plasmolysis 17 Which protein family forms channels for water movement across membranes? a Na+/K+ pumps b ATP synthases c Aquaporins 18 Which process ejects bulky materials out of the cell? a Phagocytosis b Exocytosis c Endocytosis 19 Which process ingests large particles by wrapping the membrane around them? a Phagocytosis b Pinocytosis c Facilitated diffusion 20 Which term best describes the movement of multiple substances down their own gradients independently? a Bulk transport b Cotransport c Independent diffusion

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Neurotransmission Essentials

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Neurotransmission EssentialsOnline version

by Robert Hentzel

What ions does the Sodium-Potassium Pump move, and in what amounts per cycle?

What is the typical neuronal resting potential?

Which channels open in response to changes in membrane voltage?

How are neurotransmitters released into the synaptic cleft?

EPSP effects on membrane potential and ion flow?

Inhibitory postsynaptic potentials (IPSPs) commonly involve which ions/channels?

Where are neurotransmitters stored before release?

Which process triggers an action potential to start along the axon?

What ion influx triggers neurotransmitter release at the presynaptic terminal?

Ligand-gated ion channels open in response to what?

Which process moves small, nonpolar molecules directly through the phospholipid bilayer?

Osmosis is the movement of which substance across a semipermeable membrane?

Which transport requires energy (ATP) to move substances against their concentration gradient?

What is the name of the lipid bilayer's model describing its fluid and mosaic nature?

Which term describes a solution with the same solute concentration as inside the cell?

What term describes the movement of water into a plant cell that prevents wilting in hypotonic environments?

Which protein family forms channels for water movement across membranes?

Which process ejects bulky materials out of the cell?

Which process ingests large particles by wrapping the membrane around them?

Which term best describes the movement of multiple substances down their own gradients independently?