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제목 [Roy Lee] osmosis
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작성자 goe*** 등록일 2020-05-07 오후 3:27:48

when i was solving practice question, i ran into a same problem i asked you before


  • The solute ( K ) is moving into the vacuole, making it hypertonic/hyperosmotic/lowering water potential.

doesn't this have to be hypotonic since vacuole is higher concentration than outside? which makes water to come into the vacuole
2020-05-10 오후 5:48:21

Hello!

 

Nope! think again!

hypo = means "less than" / tonicity = concentration

so if you describe something as being hypotonic, you are describing that as being "lower in concentration"

in this scenario, because there are solutes moving into a vacuole

you can assume the concentration of solutes inside the vacuole will be hypertonic compared to the norm or another environment

water will always move in the direction 

from   "a negative water potential value"    to    "zero (water potential of pure water)"

 

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