In order for you to enjoy the smell of a flower, molecules called <u>Odorants </u>from the flower must land on your olfactory epithelium, which lines the inside of the nose.
- When a person breathes in air containing odor molecules, the molecules attach to receptors in the nose and send signals to the brain.
- Odorants interact with primary epithelium olfactory receptors. Olfactory receptors, a type of epithelial cell with cilia, are found in the olfactory epithelium. These receptors receive the sense of smell, which is then sent to the brain.
- The sensory neuron connected to the receptor is activated when an odorant connects with a receptor that detects it.
- Only olfactory stimulus directly communicates with the cerebral cortex; all other sensory information is sent through the thalamus.
- Additionally, it has been suggested that the nasal mucus plays a role in the process of emulsifying hydrophobic odorant molecules, delivering them to receptor sites.
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Sickle cell is a disorder that affects the
molecules in the red blood cells, particularly the hemoglobin. The hemoglobin
is the molecule responsible for transporting oxygen throughout the body. When a
person has sickle cell anemia, the red blood cells are distorted crescent
shapes that do not travel in the bloodstream properly and efficiently. As a
result, this disorder hampers the distribution of oxygen throughout the body.
<span>
Anemia is the major characteristic of sickle cell
disorder. A person with sickle cell anemia has low number of red blood cells
that usually begin in early childhood. A person who is experiencing Sickle Cell
Anemia will have multiple and repeated infections, and periodic episodes of
pain. The severity of this condition varies from person to person but is common
in African descents. </span>
Answer:
As the atmospheric concentration of carbon dioxide above water increases, the acidity of the water will increase causing the pH to decrease.
Population growth is difficult to predict because unforeseen events can alter birth rates, death rates, migration, or the resource limits on population growth
Such policies could have a significant effect on global fertility rates.
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