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Starch molecules are too large to pass through the
tubing into the beaker. Which errors could have
caused starch to appear in the beaker despite this
fact? Check all possible errors.
not washing the outside of the tubing after
filling it with starch
reusing droppers for different solutions
adding glucose to the solution in the dialysis
tubing
using a beaker that had not been cleaned
thoroughly
DONE

Respuesta :

trud1938

Answer:

1,2,4

Explanation:

mickymike92

The possible sources of error include: not cleaning the beakers properly, reusing droppers for different solutions, and not cleaning the outside tubing after filling with starch.

What are semi-permeable membranes?

Semi-permeable membranes are materials which are selectively permeable to some substances but not others.

Starch molecules are large and do not pass through semi-permeable membranes.

The source of errors could be due to:

  • not washing the outside of the tubing after filling it with starch
  • reusing droppers for different solutions
  • using a beaker that had not been cleaned
  • thoroughly

Therefore, Semi-permeable membranes are selectively permeable to some substances such as one but not larger molecules such as starch.

Learn more about semi-permeable membranes at: https://brainly.com/question/23053244

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