Question

question 5 (mandatory) (1 point) in the dialysis experiment, which sample tested positive for glucose (hint: the benedict’s solution test)? what does this mean? sac 1 and beaker 1; glucose can travel through the dialysis bag’s membrane sac 3 and beaker 3; glucose can travel through the dialysis bag membrane only sac 1; glucose cannot travel through the dialysis bag’s membrane only sac 3; glucose cannot travel through the dialysis bag’s membrane

Explanation:

In a dialysis experiment, a positive Benedict's test for glucose in both the sac (dialysis bag) and the beaker implies that glucose molecules were able to move across the dialysis membrane. So if sac 1 and beaker 1 test positive, it means glucose traveled through the dialysis bag’s membrane. The other options either suggest glucose can't travel (which contradicts a positive test in both) or incorrect combinations of sac and beaker.

Answer:

A. sac 1 and beaker 1; glucose can travel through the dialysis bag’s membrane