Cellular Homeostasis
Biology ⇒ Cell Biology
Cellular Homeostasis starts at 9 and continues till grade 12.
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Describe how feedback mechanisms help maintain cellular homeostasis.
Describe how the process of diffusion helps maintain homeostasis in cells.
Describe the difference between passive and active transport.
Describe the role of lysosomes in maintaining cellular homeostasis.
Explain how temperature changes can affect cellular homeostasis.
Explain how the sodium-potassium pump contributes to cellular homeostasis.
Explain the importance of selective permeability in the plasma membrane for homeostasis.
A cell is exposed to a toxin that inhibits ATP production. Which transport process would be most affected? (1) Simple diffusion (2) Facilitated diffusion (3) Active transport (4) Osmosis
A cell is exposed to a toxin that inhibits ATP production. Which transport process would be most affected? (1) Simple diffusion (2) Facilitated diffusion (3) Active transport (4) Osmosis
Which of the following best defines cellular homeostasis? (1) The process by which cells maintain a stable internal environment (2) The process of cell division (3) The process of protein synthesis (4) The process of cellular respiration
Which of the following best describes facilitated diffusion? (1) Movement of molecules against the concentration gradient (2) Movement of molecules through a membrane protein down the concentration gradient (3) Movement of water only (4) Movement of ions using ATP
Which of the following best describes homeostasis at the cellular level? (1) Maintaining constant temperature only (2) Maintaining a stable internal environment despite external changes (3) Only producing energy (4) Only removing waste products
A cell in an isotonic solution will ________.
A cell placed in a hypertonic solution will ________.
A cell that cannot regulate its internal environment will likely ________.
A red blood cell placed in a hypotonic solution will ________.
True or False: All forms of cellular transport require energy.
True or False: Exocytosis is a process by which cells expel materials to maintain homeostasis.
True or False: Facilitated diffusion requires energy from ATP.
True or False: Homeostasis only occurs at the level of the whole organism, not at the cellular level.
