What is the structure of a phospholipid?
Cell Membrane, Transport, Hypertonic, Hypotonic, Isotonic

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Biology
•
9th - 10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A phospholipid consists of a hydrophilic (water-attracting) head and two hydrophobic (water-repelling) tails.
2.
FLASHCARD QUESTION
Front
Which part of the phospholipid is hydrophobic?
Back
The tails.
3.
FLASHCARD QUESTION
Front
What happens to a cell in an isotonic solution?
Back
The cell stays the same size.
4.
FLASHCARD QUESTION
Front
What is a concentration gradient?
Back
A concentration gradient is the difference in the concentration of a substance across a space.
5.
FLASHCARD QUESTION
Front
In which direction do substances move in a concentration gradient?
Back
Substances move from an area of high concentration to an area of low concentration.
6.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy (ATP).
7.
FLASHCARD QUESTION
Front
Which of the following is not an example of active transport?
Back
Facilitated diffusion.
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