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Physiology Lab Exam #1 CSCC Practice Questions and Answers

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Physiology Lab Exam #1 CSCC Practice Questions and Answers Initially there is a high concentration of sodium on the left side of a beaker of water. What is likely to happen (with regard to movement of ions and/or water) in this beaker? - Answer️️ -The sodium will move to the right side of ...

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  • August 29, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • CSCC
  • CSCC
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©SOPHIABENNET@2024-2025 Friday, August 23, 2024 10:49 AM




Physiology Lab Exam #1 CSCC Practice
Questions and Answers

Initially there is a high concentration of sodium on the left side of a beaker
of water. What is likely to happen (with regard to movement of ions
and/or water) in this beaker? - Answer✔️✔️-The sodium will move to the
right side of the beaker until it is spread out approximately the same
throughout the beaker.

What is the proper term for the process that is occurring in the beaker on
the previous card? - Answer✔️✔️-Diffusion

A red blood cell is surrounded by a solution containing a higher
concentration of solutes than found inside the cell. Cell membranes act as
selectively permeable membranes. What will happen to this cell? -
Answer✔️✔️-Water will leave the cell and the cell will crenate

What is meant by the term hypotonic solution, and what effect would this
type of solution have on a cell? - Answer✔️✔️-A solution that is hypotonic
has a lower concentration of solutes than what is in the cell. This will cause
water to move into the cell and the cell will lyse.

How is tonicity different than osmolarity? - Answer✔️✔️-Tonicity refers to
the concentration of NON-PENETRATING solutes within a solution.
Osmolarity is the concentration of a solution expressed as the total number
of solute particles per liter.


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, ©SOPHIABENNET@2024-2025 Friday, August 23, 2024 10:49 AM




What does the presence of a sloping line on a graph suggest about the
relationship between the variable on the x-axis, and the variable on y-axis?
- Answer✔️✔️-The experimenter's control (x-axis) does effect the variable of
interest that is being measured (y-axis).

Does the rate of diffusion change as the concentration gradient changes? -
Answer✔️✔️-The rate of diffusion is faster the higher the concentration
gradient.

How do concentration gradients affect the directions of diffusion? -
Answer✔️✔️-Solutes will always go from high to low down the
concentration gradient.

Do solutes of differing masses diffuse at the same rates if concentration
gradients are the same? - Answer✔️✔️-Solutes with larger masses will
diffuse slower.

If multiple solutes are present and diffusing, do they diffuse independently
or do they influence one another's diffusion? - Answer✔️✔️-They diffuse
independently.

In facilitated diffusion, what determines the rate of diffusion: the
concentration gradient or the number of carriers? - Answer✔️✔️-Both would
determine the rate of diffusion.

Hypotonic: water goes______

The Red blood cell will_____ - Answer✔️✔️-into cell; lyse



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, ©SOPHIABENNET@2024-2025 Friday, August 23, 2024 10:49 AM




Isotonic: water goes____

Red blood cell will _____ - Answer✔️✔️-remains equal; remains the same

Hypertonic: water goes_____

Red blood cell will _____ - Answer✔️✔️-out of the cell; crenate

What effect does a 300 mOsmolar solution of a non-penetrating solute have
on a cell, and how does this differ from the effect of a 300 mOsmolar
solution of a penetrating solute? - Answer✔️✔️-Non-penetrating would have
no change or effect. Penetrating, solutes will move into the cell, water will
follow, cell will lyse (hypotonic solution)

List 3 methods used to assess heart rate. - Answer✔️✔️-Palpation,
Plethysmograph, ECG

A difference between the palpated heart rate and the heart rate calculated
by auscultation is termed a - Answer✔️✔️-Pulse deficit

Why is it important that the subject not know when the respiratory rate is
being assessed? - Answer✔️✔️-Because ventilation can be controlled
voluntarily, the persons breathing rate may change if they know they're
being watched.

What is the difference between assessing blood pressure by auscultation
and assessing blood pressure by palpation? - Answer✔️✔️-Auscultation is
listening with a stethoscope for turbulence in the brachial artery. Palpation
is feeling the radial or brachial pulse.


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