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The filtration membrane includes all of the following except:
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2. Cell Chemistry & Cell Components
Introduction to Membrane Transport
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In active transport, by which method does a cell 'drink' the fluid it requires?
A
Osmosis
B
Facilitated diffusion
C
Phagocytosis
D
Pinocytosis
Guida verificata passo dopo passo1
Step 1: Understand the concept of active transport. Active transport is a process where cells use energy (ATP) to move substances across the cell membrane against their concentration gradient.
Step 2: Learn about pinocytosis. Pinocytosis is a type of endocytosis, often referred to as 'cell drinking,' where the cell engulfs extracellular fluid and dissolved substances into small vesicles.
Step 3: Differentiate pinocytosis from other transport methods. Osmosis is passive transport of water, facilitated diffusion is passive transport of molecules via protein channels, and phagocytosis is 'cell eating,' where the cell engulfs larger particles.
Step 4: Recognize that pinocytosis specifically involves the uptake of fluid and dissolved substances, making it the correct method for 'cell drinking.'
Step 5: Apply this knowledge to the problem. Since the question asks about the method by which a cell 'drinks' fluid, pinocytosis is the correct answer based on its definition and function.
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