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Bio - Cell

Practice questions on the cell

QuestionAnswer
Name the 4 structural components of the plasma membrane phospholipids,proteins,cholesterol(lipids),carbohydrates
Which molecule stabilizes the structure of the plasma membrane? cholesterol
Which molecule forms the glycocalax? Carbohydrates
Which molecule contains channels that permit passages of water through the plasma membrane? proteins
Which molecule forms the lipid bilayer and is amphipathic? Phospholipids
Which molecule allows the passage of O2 and CO2 phospholipids
What is the main difference between active and passive transport? Active transport-energy Passive transport- no energy
Is facilitated diffusion active or passive transport? Passive
Is facilitated diffusion active or passive transport? Passive
Name the transport that moves sodium across the pm against its concentration Active transport
Does active transport require ATP or prtoeins? Yes
A cell places in a hypertonic solution will do what to the cell? Shrink the cell
Name the transport process that involoves ingestion of a large particle such as bacteria Phagocytosis
Which specialization of the pm increases the surfacer area? Micro villi
Which specialization of the pm allows for rapid communication bewtwen cells? Gapped junctions
Which specialization of the pm forms an impermeable barrier? tight
Which specialization of the pm anchors cells together? Desmosomes
Created by: lpino1
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