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Which of these molecules can not pass through a membrane to enter a cell?

Which of these molecules can not pass through a membrane to enter a cell?

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1. Iodine
2. Glucose
3. Oxygen
4. Starch

This question is part of Diffusion and Osmosis
Asked by Eman, Last updated: Jun 30, 2020

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4 Answers

kevin The nerd from harvard

Kevin The nerd from harvard

Answered May 30, 2019

Glucose and starch are to big to pass through the cell membrane.

1
 

John Adney

John Adney

Answered Oct 23, 2017

Starch cant because it is too big to go through the partually- permable membrane

 1

kevin The nerd from harvard

Kevin The nerd from harvard

Replied on May 30, 2019

Whats poppin big John

anne

Anne

Answered Oct 14, 2017

Starch can not pass through the membrane of a cell

 

John Smith

John Smith

Answered Sep 15, 2016

Starch

As we observed in the Diffusion Through a Membrane lab, starch cannot pass through a semi-permeable membrane. We know this because the solution surrounding the cell we constructed remained amber, instead of turning purple. Starch is too large a molecule to pass through the membrane of a cell.
 

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