Podcast
Questions and Answers
What is the primary role of sodium-potassium ATPase in cellular function?
What is the primary role of sodium-potassium ATPase in cellular function?
- Facilitating endocytosis
- Synthesis of protein
- Transporting glucose into the cell
- Regulation of ion concentration (correct)
Which of the following statements about passive transport is correct?
Which of the following statements about passive transport is correct?
- It takes place against the concentration gradient.
- It depends on the permeability of the cell membrane. (correct)
- It requires energy in the form of ATP.
- It exclusively involves carrier proteins.
What characterizes active transport mechanisms?
What characterizes active transport mechanisms?
- Facilitated by diffusion through the lipid bilayer
- It occurs spontaneously without cell involvement
- Movement of substances from lower to higher concentration without energy
- Movement that requires cellular energy input (correct)
Which type of junction is responsible for providing structural integrity between adjacent cells?
Which type of junction is responsible for providing structural integrity between adjacent cells?
Endocytosis is primarily involved in which of the following processes?
Endocytosis is primarily involved in which of the following processes?
Which cell organelle is primarily involved in energy production?
Which cell organelle is primarily involved in energy production?
What is a common factor that affects the rate of diffusion across a cell membrane?
What is a common factor that affects the rate of diffusion across a cell membrane?
Which of these is NOT a function associated with the cell membrane?
Which of these is NOT a function associated with the cell membrane?
Which statement accurately describes secondary active transport?
Which statement accurately describes secondary active transport?
What role do integral membrane proteins play in cellular function?
What role do integral membrane proteins play in cellular function?
Which process is primarily responsible for the selective uptake of materials into a cell?
Which process is primarily responsible for the selective uptake of materials into a cell?
What primarily factors contribute to the rate of diffusion across the cell membrane?
What primarily factors contribute to the rate of diffusion across the cell membrane?
Which component is not a part of the homeostatic control system?
Which component is not a part of the homeostatic control system?
How does autophagy differ from apoptosis?
How does autophagy differ from apoptosis?
What accurately describes the function of ribosomes in a cell?
What accurately describes the function of ribosomes in a cell?
Which type of membrane transport does NOT require energy?
Which type of membrane transport does NOT require energy?
Flashcards
Cell membrane structure
Cell membrane structure
The cell membrane is a phospholipid bilayer with embedded proteins that controls the passage of substances into and out of the cell.
Active transport
Active transport
Movement of molecules across a cell membrane against their concentration gradient, requiring energy.
Passive transport
Passive transport
Movement of molecules across a cell membrane down their concentration gradient, without energy requirement.
Diffusion
Diffusion
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Cell junctions
Cell junctions
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Feedback mechanisms
Feedback mechanisms
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Mitochondria
Mitochondria
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Cell theory
Cell theory
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Cell Membrane
Cell Membrane
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Endocytosis
Endocytosis
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Exocytosis
Exocytosis
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Nucleus
Nucleus
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Study Notes
Cell Physiology Study Notes
- Essay Topics: Write a concise essay on 5 cell organelles.
- Cell Membrane Structure and Function: Describe the structure and function of the cell membrane using a diagram.
- Secondary Active Transport: Describe secondary active transport, including a note on sodium-potassium ATPase.
- Endocytosis & Cell Junctions: Write short notes on endocytosis and cell junctions.
- Feedback Mechanisms: Discuss positive and negative feedback mechanisms using examples.
- Cell Membrane Proteins: Functionally classify cell membrane proteins.
- Factors Affecting Intracellular Movement: Write a note on factors that affect the movement of substances within the cell.
- Diffusion Factors: Identify factors that affect the rate of diffusion.
- Membrane Transport: Discuss membrane transport.
- Cell Membrane Diagram: Describe the cell membrane using a diagram.
- Mitochondria, Nucleus, & Golgi Bodies: Discuss mitochondria, the nucleus, and Golgi bodies.
Additional Cell Physiology Topics
- Endoplasmic Reticulum and Ribosomes: Describe the endoplasmic reticulum and ribosomes. Included integral proteins.
- Apoptosis: Write about apoptosis.
- Sodium-Potassium ATPase: Provide details about the sodium-potassium ATPase.
- Homeostatic Control Systems: Describe the components of the homeostatic control system in detail.
- Cell Structure and Cell Theory: Describe the structure of the cell using an annotated diagram. Explain the cell theory.
- Active Transport: Discuss active transport across the cell membrane.
- Diffusion Factors: Identify factors affecting the rate of substance diffusion across the cell membrane.
- Transport Mechanisms: Explain transport mechanisms.
- Protein Synthesis: Explain protein synthesis within the cell.
- DNA Structure: Describe the structure of DNA.
- Feedback Mechanisms and Endocytosis: Discuss feedback mechanisms and endocytosis.
Factors Affecting Intracellular Movement
- The factors affecting the movement of substances within the cell and the rate of diffusion across the cell membrane are discussed.
Cell Structure and Function
- Cell Structure: Discussion about the following cell structures: cell membrane, cell organelles that have a limiting membrane, cell organelles without a limiting membrane, tight junctions, gap junctions, and anchoring junctions.
- Cell Theory: Describe the cell theory.
- Cell Junctions: Discuss adherens junctions, focal adhesion, desmosomes, and hemidesmosomes. State differences between them.
Specialized Transport Mechanisms
- Passive Transport: Explain passive transport mechanisms, including simple diffusion through lipid layers, diffusion through protein layers, and facilitated/carrier-mediated diffusion. Discuss factors affecting diffusion and describe various types of passive transport.
- Active Transport: Explain primary and secondary active transport. Provide the mechanism of action of the Na+-K+ pump. Explain the difference between cotransport and countertransport.
- Endocytosis, Exocytosis, and Transcytosis: Write about endocytosis, exocytosis, and transcytosis, including their mechanisms.
Homeostasis and Feedback Mechanisms
- Homeostasis: Discuss homeostasis, components of the homeostatic system, and their mechanisms.
- Negative Feedback: Discuss negative feedback, giving examples.
- Positive Feedback: Discuss positive feedback, giving examples.
Physiological Relevance and Clinical Applications
- Cell Physiological Relevance: List several conditions with their potential relevance in cell physiology, such as autophagy, apoptosis, necrosis, muscle spasm, and various diseases and syndromes.
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