starch molecules are too large to pass through the tubing into the beaker. which errors could have caused…

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

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

Answer

Brief Explanations:

  • Not washing the outside of the tubing after filling it with starch can leave starch residue that could transfer to the beaker.
  • Reusing droppers for different solutions might cross - contaminate and introduce starch into the beaker.
  • Using a beaker that had not been cleaned thoroughly could have residual starch in it. Adding glucose to the solution in the dialysis tubing has no direct relation to starch appearing in the beaker.

Answer:

  • 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