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Describe the sliding filament theory.

The sliding filament theory demonstrates how the muscles in our body contract. As a signal reaches the neuromuscular junction (motor end plate), neurotransmitters such as Acetylcholine will diffuse across th...
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Answered by Rithvik G. • Biology tutor
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What is the structure of a protein?

Structure of the protein is easier to understand if we start from the beginning and gradually build up our knowledge. Firstly, proteins are made of amino acids. Each amino acid is made of a central carbon at...
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Answered by Daria S. • Biology tutor
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Why do chemical impulses only go in one direction across a synapse?

Ca2+ channels are only in the membrane of the presynaptic neuron. ACh-containing vesicles are only within the presynaptic neuron. (ACh only produced within the presynaptic neuron, has choline and acetyl)APs ...
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Answered by Reiss C. • Biology tutor
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In what ways can a point mutation affect the protein encoded for by a gene?

Point mutations can affect a protein in various ways, depending on the type of point mutation that has occurred. Substitution mutations can be silent , causing no change in the end protein; they can cause mi...
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Answered by Ryan M. • Biology tutor
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Briefly describe the key differences and similarities between Prokaryotic and Eukaryotic Cells

Differences Prokaryotes are much smaller than eukaryotic cells. Prokaryotic cells are 0.5-5 microns in diameter compared to eukaryotic cells which are approx 50-100 microns. Another difference is that prokar...
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Answered by Oliver W. • Biology tutor
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