Cellular Homeostasis
Biology ⇒ Cell Biology
Cellular Homeostasis starts at 9 and continues till grade 12.
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See sample questions for grade 12
A cell is exposed to a toxin that inhibits ATP production. Predict the effect on active transport processes.
A cell is placed in an isotonic solution. What will happen to the cell's volume?
A cell placed in a hypotonic solution will __________.
A red blood cell is placed in pure water. Predict and explain what will happen to the cell.
A scientist observes that a cell is using ATP to move ions from a low concentration to a high concentration. What type of transport is this?
Describe how feedback mechanisms help maintain cellular homeostasis.
Describe how temperature changes can affect cellular homeostasis.
Describe the role of aquaporins in cellular homeostasis.
Explain how the sodium-potassium pump contributes to cellular homeostasis.
Explain the difference between positive and negative feedback in cellular homeostasis.
Explain why maintaining pH balance is important for cellular homeostasis.
Explain why selective permeability of the plasma membrane is important for cellular homeostasis.
A cell is exposed to a sudden increase in extracellular potassium ion concentration. Explain how this change could disrupt cellular homeostasis and describe the cellular mechanisms that would respond to restore balance.
A researcher observes that when a certain ion channel is blocked, the cell's internal pH becomes more acidic. Explain the possible role of this ion channel in maintaining cellular homeostasis.
Describe how the failure of lysosomal enzymes can lead to a loss of cellular homeostasis. Provide an example of a disease caused by such a failure.
Describe the role of membrane potential in maintaining cellular homeostasis and explain what would happen if the membrane potential is lost.
Explain how the disruption of calcium ion (Ca²⁺) homeostasis can affect cellular processes such as muscle contraction and signal transduction.
