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andriy [413]
3 years ago
7

Stimulus/Stress v.s. Response

Biology
1 answer:
guajiro [1.7K]3 years ago
7 0

Answer:

The stress response, or “fight or flight” response is the emergency reaction system of the body. ... The stress response includes physical and thought responses to your perception of various situations. When the stress response is turned on, your body may release substances like adrenaline and cortisol.

Explanation:

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hyponatremia is a condition in which the sodium in the blood is too low. Uncontrolled spasms, which are sudden, involuntary cont
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Hyponatremia is a condition in which the levels of sodium in the blood is too low. Some of the symptoms of hyponatremia include headaches, muscle cramps or spasm, seizures, weakness, restlessness, and confusion. Hyponatremia can occur from excess fluid in the body, or a loss of sodium in body fluid.

Explanation:

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Explain how animal like plant like are similar and different
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Explanation:

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The physician is attending to a 72-year-old client with a malignant brain tumor. the physician recommends immediate radiation th
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Sodium ions, oxygen (O2), and glucose pass directly through lipid bilayers at dramatically different rates. Which of the followi
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Answer:

The correct order, from fastest to slowest, for the passage of molecules and ions through the cell membrane is oxygen, sodium ions, glucose (option D).

Explanation:

The plasma membrane is a lipid bilayer, with glycoproteins and membrane proteins, which constitutes a semi-permeable barrier to the passage of substances into and out of the cell.

The speed with which a substance can pass through the membrane depends on its chemical properties -hydrophilic substances pass through with greater difficulty than lipophilic ones- requiring in some cases specialized transport mechanisms. The different rates with which a substance passes depends on this.

  • <em>Oxygen (O₂) </em><em>passes through simple diffusion, depending on a concentration gradient. It's the molecule that passes through the membrane the fastest. </em>
  • <em>In second place, there would be the </em><em>Na⁺ ions</em><em> -charged atoms- that cross the membrane by facilitated diffusion, through specific ionic channels. </em>
  • <em>The </em><em>glucose</em><em> molecule, being larger, requires the use of transport proteins, being its passage through the membrane slower with respect to oxygen or sodium.</em>

Undoubtedly, molecular weight and affinity for the plasma membrane are determining factors for the passage of molecules through the lipid bilayer.

Learn more:

Simple diffusion and active transport  brainly.com/question/6420224

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