Unit #4 Review A
Flashcard
•
Science
•
9th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a phospholipid?
Back
A phospholipid is a molecule composed of a phosphate and glycerol head and two fatty acid chain tails.
2.
FLASHCARD QUESTION
Front
What are the two parts of a phospholipid called?
Back
Hydrophilic Head and Hydrophobic Tail.
3.
FLASHCARD QUESTION
Front
What is the process called when materials move across a membrane from low concentration to high concentration?
Back
Active Transport.
4.
FLASHCARD QUESTION
Front
What does it mean when a membrane is selectively permeable?
Back
It means that some molecules can cross the membrane while others cannot.
5.
FLASHCARD QUESTION
Front
What does hydrophilic mean?
Back
Hydrophilic means water-loving.
6.
FLASHCARD QUESTION
Front
What is the opposite of hydrophilic?
Back
Hydrophobic, which means water-fearing.
7.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.
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