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Cardiac muscle fibers electrically connect to neighboring fibers by?

intercalated discs, which contain gap junctions that allow for the rapid transmission of electrical impulses between cells. This ensures synchronized contraction of the heart muscle.


What is the name of the tiny gap the neurotransmitter has to diffuse across to reach the membrane of the postsynaptic neuron?

The tiny gap that the neurotransmitter has to diffuse across to reach the membrane of the postsynaptic neuron is called the synaptic cleft. It separates the axon terminal of the presynaptic neuron from the dendrite of the postsynaptic neuron.


Is a minute gap between a neuron and target cell across which neurotransmitters travel?

No, a minute gap between a neuron and target cell is not enough for neurotransmitters to travel. The space known as the synaptic cleft is actually very small, measuring only about 20-40 nanometers. Neurotransmitters cross this gap by diffusion to bind to specific receptors on the target cell's membrane.


Plasmodesmata of plant cells are functionally equivalent to what of animal cells?

If the answer choices are a. Extracellular Martix b. Desmosomes c. Gap Junctions d. Tight Junctions e. Peroxisomes Then the answer is definitely C, Gap Junctions


How are synapses adapted for diffusion?

Synapses are adapted for diffusion through the presence of neurotransmitter receptors on the postsynaptic membrane, which allow for the binding of neurotransmitters released from the presynaptic neuron. The synaptic cleft, a small gap between the pre- and postsynaptic neurons, ensures that neurotransmitters can diffuse across and bind to receptors efficiently. Additionally, the presence of enzymes in the synaptic cleft helps to degrade neurotransmitters after they have exerted their effects, allowing for precise control of neurotransmission.