🔍The cell membrane regulates the movement of materials and maintains homeostasis.
🚪The cell membrane is selectively permeable, allowing only certain molecules to pass through.
🔁Passive transport doesn't require energy, while active transport does.
📦Bulk transport involves the formation and fusion of vesicles to transport large amounts of material.
🌍Endocytosis moves material into the cell, while exocytosis expels material from the cell.
What is the main role of the cell membrane?
—The main role of the cell membrane is to regulate the movement of materials in and out of the cell.
What is the difference between passive and active transport?
—Passive transport doesn't require the cell to expend energy, while active transport requires energy.
What is bulk transport?
—Bulk transport involves the formation and fusion of vesicles to transport large amounts of material.
What is endocytosis?
—Endocytosis is a form of bulk transport that moves material into the cell.
What is exocytosis?
—Exocytosis is a form of bulk transport that expels material from the cell.
00:00The cell membrane is a crucial barrier and gatekeeper for cells.
00:08The cell membrane is selectively permeable, allowing some molecules to pass through while blocking others.
01:12Passive and active transport mechanisms regulate the movement of materials across the cell membrane.
02:29Bulk transport involves the formation and fusion of vesicles to transport large amounts of material.
03:06Endocytosis and exocytosis are two forms of bulk transport.
