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Questions and Answers
Which of the following is a key component of the plasma membrane?
Which of the following is a key component of the plasma membrane?
- Phospholipids (correct)
- Cholesterol esters
- Glycogen granules
- Starch molecules
What is the main function of the plasma membrane?
What is the main function of the plasma membrane?
- Regulating the passage of substances into and out of the cell (correct)
- Producing energy for the cell
- Storing genetic information
- Synthesizing proteins within the cell
What term describes the movement of molecules from an area of high concentration to an area of low concentration across the plasma membrane?
What term describes the movement of molecules from an area of high concentration to an area of low concentration across the plasma membrane?
- Endocytosis
- Diffusion (correct)
- Osmosis
- Active transport
Which organelle is responsible for producing energy in the form of ATP in a cell?
Which organelle is responsible for producing energy in the form of ATP in a cell?
Which organelle is involved in the synthesis of proteins in a cell?
Which organelle is involved in the synthesis of proteins in a cell?
Which organelle is responsible for detoxifying harmful substances in a cell?
Which organelle is responsible for detoxifying harmful substances in a cell?
Flashcards
Key component of the plasma membrane?
Key component of the plasma membrane?
Phospholipids form a bilayer that is the structural basis of the membrane.
Main function of the plasma membrane?
Main function of the plasma membrane?
The plasma membrane controls what gets in and out of the cell, maintaining cell homeostasis.
Movement from high to low concentration?
Movement from high to low concentration?
Diffusion is the movement from high to low concentration, aiming for equilibrium.
Organelle for ATP production?
Organelle for ATP production?
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Organelle for protein synthesis?
Organelle for protein synthesis?
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Organelle for detoxifying?
Organelle for detoxifying?
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Study Notes
Plasma Membrane
- A key component of the plasma membrane is phospholipid bilayer.
Functions of Plasma Membrane
- The main function of the plasma membrane is to regulate the movement of materials in and out of the cell.
Movement of Molecules
- Diffusion is the term that describes the movement of molecules from an area of high concentration to an area of low concentration across the plasma membrane.
Cellular Organelles
- Mitochondria are the organelles responsible for producing energy in the form of ATP in a cell.
- Ribosomes are the organelles involved in the synthesis of proteins in a cell.
- The organelle responsible for detoxifying harmful substances in a cell is the Lysosome.
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