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Related Concept Videos

Electrical Synapses01:28

Electrical Synapses

Electrical synapses found in all nervous systems play important and unique roles. In these synapses, the presynaptic and postsynaptic membranes are very close together (3.5 nm) and are actually physically connected by channel proteins forming gap junctions.
Gap junctions allow the current to pass directly from one cell to the next. In contrast, in the chemical synapse, the neurotransmitters carry the information through the synaptic cleft from one neuron to the next. They consist of two...
Epiphytes, Parasites, and Carnivores02:40

Epiphytes, Parasites, and Carnivores

Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the biosynthesis of the...
Voltage-gated Ion Channels01:26

Voltage-gated Ion Channels

Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
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Mechanically-gated Ion Channels01:12

Mechanically-gated Ion Channels

Mechanically-gated ion channels are proteins found in eukaryotic and prokaryotic cell membranes that open in response to mechanical stress. Tension, compression, swelling, and shear stress can alter the conformation of the protein, opening a transmembrane channel that allows the passage of ions for signal transmission. In eukaryotes, mechanically-gated channels are distributed in several regions like the neurons, lungs, skin, bladder, and heart, where they play critical roles in numerous...
Mechanically-gated Ion Channels01:12

Mechanically-gated Ion Channels

Mechanically-gated ion channels are proteins found in eukaryotic and prokaryotic cell membranes that open in response to mechanical stress. Tension, compression, swelling, and shear stress can alter the conformation of the protein, opening a transmembrane channel that allows the passage of ions for signal transmission. In eukaryotes, mechanically-gated channels are distributed in several regions like the neurons, lungs, skin, bladder, and heart, where they play critical roles in numerous...
Circuit Terminology01:14

Circuit Terminology

An electrical network is a system composed of interconnected elements, such as resistors, capacitors, inductors, and voltage or current sources. Unlike a circuit, an electrical network does not necessarily form a closed path. In other words, while all circuits can be considered networks due to their interconnected nature, not every network qualifies as a circuit.
A circuit, on the other hand, is also an interconnected system of electrical elements but must contain one or more closed paths.

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Examining Monosynaptic Connections in Drosophila Using Tetrodotoxin Resistant Sodium Channels
09:55

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Published on: February 14, 2018

Biologically closed electrical circuits in venus flytrap.

Alexander G Volkov1, Holly Carrell, Vladislav S Markin

  • 1Department of Chemistry and Biochemistry, Oakwood University, Huntsville, Alabama 35896, USA. agvolkov@yahoo.com

Plant Physiology
|February 13, 2009
PubMed
Summary
This summary is machine-generated.

The Venus flytrap

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Area of Science:

  • Plant biology
  • Biophysics
  • Electrical engineering

Background:

  • The Venus flytrap (Dionaea muscipula) exhibits rapid leaf closure, one of the fastest movements in plants.
  • Previous research indicated that electrical stimuli, not mechanical, can trigger trap closure.

Purpose of the Study:

  • To investigate the electrical properties of the Venus flytrap's upper leaf.
  • To propose an equivalent electrical circuit model for the Venus flytrap leaf.

Main Methods:

  • Experimental investigation of electrical properties.
  • Development of an equivalent electrical circuit model.

Main Results:

  • The study characterized the electrical properties of the Venus flytrap leaf.
  • An electrical circuit model was proposed that aligns with experimental findings.

Conclusions:

  • Electrical properties are crucial for the Venus flytrap's rapid closure mechanism.
  • The proposed circuit model provides insight into the plant's electrical signaling.