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Which of the following statements is true about chiral molecules?
  • a)
    They have an internal plane of symmetry.
  • b)
    They are superimposable on their mirror image.
  • c)
    They rotate plane-polarized light.
  • d)
    They have a tetrahedral geometry.
  • e)
    None of these
Correct answer is option 'C'. Can you explain this answer?
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Which of the following statements is true about chiral molecules?a)The...
Chiral molecules are not superimposable on their mirror image and possess a property called optical activity. They rotate the plane of polarized light in a specific direction.
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A cell membrane defines the limits of the cell and serves as the boundary between the cell and its surroundings. It is made of a double layer of lipids that blocks the passage of polar substances. The image below shows a typical cell membrane:One important concept related to cell membranes is membrane fluidity. Cells need to keep a certain level of flexibility in order to maintain their stability. Increasing temperature, cholesterol content, and unsaturation of the fatty acid tail of the phospholipids in the bilayer increases the membrane fluidity.Substances pass through the cell membrane by a process called “transport”. Transport can be passive if no energy is consumed or active if energy is required to transport substances across the membrane. The movement of an uncharged solute across a membrane depends on its concentration gradient, while the movement of an ion depends both on its concentration gradient and the electric potential of the membrane. Membranes are said to be polarized if the resting membrane potential is different than zero, depolarized if the membrane potential is higher than the resting membrane potential, and hyperpolarized if the membrane potential is lower than the resting membrane potential.The following table shows the characteristics of the different types of solute transport across a membrane:Q.The resting membrane potential of a neuron is about -60 mV. In an experiment the membrane potential of a neuron is measured to be -90 mV. This membrane is ____. (You may consult the attachment.)

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Which of the following statements is true about chiral molecules?a)They have an internal plane of symmetry.b)They are superimposable on their mirror image.c)They rotate plane-polarized light.d)They have a tetrahedral geometry.e)None of theseCorrect answer is option 'C'. Can you explain this answer?
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Which of the following statements is true about chiral molecules?a)They have an internal plane of symmetry.b)They are superimposable on their mirror image.c)They rotate plane-polarized light.d)They have a tetrahedral geometry.e)None of theseCorrect answer is option 'C'. Can you explain this answer? for MCAT 2024 is part of MCAT preparation. The Question and answers have been prepared according to the MCAT exam syllabus. Information about Which of the following statements is true about chiral molecules?a)They have an internal plane of symmetry.b)They are superimposable on their mirror image.c)They rotate plane-polarized light.d)They have a tetrahedral geometry.e)None of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for MCAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is true about chiral molecules?a)They have an internal plane of symmetry.b)They are superimposable on their mirror image.c)They rotate plane-polarized light.d)They have a tetrahedral geometry.e)None of theseCorrect answer is option 'C'. Can you explain this answer?.
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