The mechanism in a cell's connected section of the membrane that detects chemical signals is i.e. structure labelled B in the diagram. Thus, the correct option is D.
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What are receptors?</h3>
Receptors, which are large proteins that can be found within or outside of cells, are the components of a cell that are in charge of identifying chemical signals.
Whereas plasma membrane junctions interact with surface proteins found inside cells during cell to cell signaling.
Thus, it follows that the structure designated B in the diagram is the one that serves as a chemical signal receptor.
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Ok, I'm sick and tired of incorrect verified answers and Yes the verified answer here is incorrect. The correct answer is "B." and here is why:
hypoxia: a condition of oxygen depletion in water
Now know this, oxygen depletion mainly occurs when dirt and soil that have been sprayed with agriculture fertilizers are introduced or enter a body of water.
Fertilizers are actually amazing on land and they improve the soil quality immensely, but in the water they promote the growth of phytoplankton. This in itself isn't so bad, but once the fertilizers wear off the plankton die and decay, which then in turn uses more oxygen.
Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.
1. A, C, G, T
2. A, C, G, U
3. Transcription
4. Translation
5. Cytoplasm
6. Nucleus
7. Ribosome in the cytoplasm or attached to ER
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I think the answer is A. Tropisms