Answer:
The correct answers are described in the Explanation section.
Explanation:
The function of the structures in the cell membrane are as follows:
a) phospholipid bilayer: comprised of fatty acids and alcohol, the phospholipid bilayer acts as a hydrophobic barrier to avoid the uncontrolled transport of molecules and ions.
b) peripheral protein: they are proteins present in the external surface of the cell membrane. This proteins form temporary bonds between the cells and other molecules, attaching and detaching at specific times.
c) integral protein: this proteins have one part of its structure in the surface and other part within the cell membrane. They have different roles, including: receptors, transporters, linkers, channels, among others.
d) glycolipid & glycoprotein: proteins that have carbohydrate-bearing portions in its extracellular environment. They maintain the stability of the cell membrane and facilitate cellular recognition.
e) cholesterol: cholesterol structure helps to the packing of the phospholipids, which restricts the passage of the molecules.
The correct answer is D: the adrenal glands. More specifically, the adrenal medulla<span> produces </span>catecholamines<span>, in particular especially </span>norepinephrine<span> and </span>epinephrine. Estrogen<span>, </span>testosterone<span>, </span>cortisol<span>, </span>dopamine<span> and </span>serotonin also play a role in the response.
The main adaptations of wind-pollinated plants are: The flowers are small inconspicuous, lacks fragrance and nectar. They are not attractive colors. The perianth lobes are reduced. The pollen grains are smooth, light, and dry. Usually bears unisexual flowers.
Answer:
Negative feedback will stop the release of this hormone.
Explanation:
Negative feedback will stop the release of this hormone.
Negative feedback loop is responsible for down regulating the expression of a hormone in our body. Negative feedback loop is required to restrict the unnecessary wastage of our body's energy in producing a hormone when it is not even required. Once we have maintained the water balance in our body with the help of that hormone we don't require it anymore so we need a negative feedback loop to stop the synthesis of this hormone. Our body has to dedicate some energy in the production of any hormone (protein). If negative feedback loop will not act once the water balance has been maintained, it will cause excessive hormone release unnecessarily which is not at all required.
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