QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
"When the SimCell membrane in the Cell
-
O
-
Scope simulator jiggled back and forth, this was due to:
Pressure against the membrane
Osmosis causing molecules to flow across the membrane
The membrane not being at equilibrium
None of the above"
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Answer
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Step 1:: Analyze the given information and understand the concept of osmosis.
Osmosis is the net movement of solvent molecules from an area of lower solute concentration to an area of higher solute concentration, through a semi-permeable membrane. In this case, we are concerned with the SimCell membrane in the Cell-O-Scope simulator.
Step 2:: Evaluate the options provided in the question.
- Pressure against the membrane: This could cause the membrane to move, but it is not directly related to osmosis. - Osmosis causing molecules to flow across the membrane: This is the definition of osmosis, so we need to investigate whether it is causing the membrane to jiggle. - The membrane not being at equilibrium: If the membrane is not at equilibrium, osmosis will occur to try to reach equilibrium. - None of the above: This would mean that none of the other options are correct, which we need to determine.
Step 3:: Understand the relationship between osmosis and membrane movement.
When osmosis occurs, solvent molecules move across the semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration. This movement of solvent molecules can create a pressure difference across the membrane, causing it to move.
Step 4:: Analyze the options in the context of osmosis and membrane movement.
- Pressure against the membrane: This could be a result of osmosis, but it is not the cause. - Osmosis causing molecules to flow across the membrane: This is the definition of osmosis, and it can lead to membrane movement. - The membrane not being at equilibrium: If the membrane is not at equilibrium, osmosis will occur, which can cause the membrane to move. - None of the above: This is not the correct answer because osmosis is causing the membrane to jiggle.
Step 5:: Select the correct answer based on the analysis.
The correct answer is "Osmosis causing molecules to flow across the membrane" because osmosis results in the movement of solvent molecules across the semi-permeable membrane, which can create a pressure difference and cause the membrane to move (jiggle).
Final Answer
The SimCell membrane jiggled back and forth due to osmosis causing molecules to flow across the membrane.
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