Cell Transport- ai Flashcards
What is the definition of cell transport?
Cell transport refers to the movement of materials across the cell membrane.
What are the two main types of cell transport?
The two main types of cell transport are passive transport and active transport.
True or False: Passive transport does not require energy input from the cell.
True
Which type of cell transport involves the movement of molecules from an area of higher concentration to an area of lower concentration?
Passive transport
What is diffusion?
Diffusion is the passive movement of molecules from an area of higher concentration to an area of lower concentration.
What is osmosis?
Osmosis is the diffusion of water molecules across a selectively permeable membrane.
Which type of cell transport requires energy in the form of ATP?
Active transport
What is endocytosis?
Endocytosis is the process by which cells take in large molecules by engulfing them in a vesicle.
What is exocytosis?
Exocytosis is the process by which cells release large molecules by fusing vesicles with the cell membrane.
What is facilitated diffusion?
Facilitated diffusion is the passive movement of molecules across the cell membrane with the help of transport proteins.
Which type of cell transport involves the use of transport proteins to move molecules across the membrane?
Facilitated diffusion
What is the difference between simple diffusion and facilitated diffusion?
Simple diffusion does not require transport proteins, while facilitated diffusion does.
Which type of cell transport is responsible for the movement of ions against their concentration gradient?
Active transport
What is the sodium-potassium pump an example of?
The sodium-potassium pump is an example of active transport.
Which type of cell transport maintains the cell’s internal environment by controlling what enters and exits the cell?
Cell transport
What is the role of the cell membrane in cell transport?
The cell membrane acts as a selectively permeable barrier that regulates the movement of materials in and out of the cell.
What is the main function of cell transport?
The main function of cell transport is to maintain homeostasis by regulating the internal environment of the cell.
Which type of cell transport requires energy input from the cell?
Active transport
What is the driving force for passive transport processes?
The driving force for passive transport processes is the concentration gradient.
What is the role of the sodium-potassium pump in cell transport?
The sodium-potassium pump helps maintain the cell’s resting membrane potential and plays a crucial role in nerve conduction.
Which type of cell transport involves the movement of molecules across the membrane using transport proteins?
Facilitated diffusion
What is the role of aquaporins in cell transport?
Aquaporins are specialized water channels that facilitate the movement of water molecules across the cell membrane.
Which type of cell transport is responsible for the movement of water across the cell membrane?
Osmosis
What is the difference between active transport and passive transport?
Active transport requires energy input, while passive transport does not.
What is the role of vesicles in cell transport?
Vesicles are membrane-bound organelles that play a key role in endocytosis and exocytosis.
Which type of cell transport involves the fusion of vesicles with the cell membrane to release molecules outside the cell?
Exocytosis
What is the purpose of endocytosis in cell transport?
Endocytosis allows the cell to take in large molecules, nutrients, and other substances from the external environment.
Which type of cell transport is responsible for the movement of large molecules into the cell?
Endocytosis
What is the primary function of the sodium-potassium pump in cell transport?
The primary function of the sodium-potassium pump is to maintain the cell’s resting membrane potential and regulate ion concentrations.
Which type of cell transport requires the cell to expend energy in the form of ATP?
Active transport
What is the significance of cell transport in cellular function?
Cell transport is essential for the survival and proper functioning of cells by ensuring the balance of nutrients and waste products.
Which type of cell transport is involved in the movement of substances from an area of lower concentration to an area of higher concentration?
Active transport
What is the importance of maintaining homeostasis in cell transport?
Maintaining homeostasis through cell transport ensures that the internal environment of the cell remains stable and functional.
