You place a potato slice in a sucrose solution of unknown concentration, and leave it there for 2 hrs. When you return and weigh
the potato slice, you find that the weight of the potato slice has increased. You conclude that the sucrose solution is_________to the potato cells. [2 pt]
You conclude that the sucrose solution is hypotonic to the potato cells.
Explanation:
A solution is said to be hypotonic with respect to other solution if its concentration is less than the other solution to which it is compared.
A concentration of solvent molecule in a hypotonic solution is higher than hypertonic solution so solvent moves from hypotonic to hypertonic solution due to osmosis.
The increase in weight of potato shows that it has gained water i.e. the water has entered from the sucrose solution to cells. So, the sucrose solution is hypotonic to the cell sap.
Rheumatic fever is a disease that caused by Group A streptococcus infection. The bacteria has component that similar to the heart valve cells, makes the immune cell attack it. The drug of choice for this infection is penicillin G benzathine injection. It is one of penicillin family drug that has high prevalence of allergy reaction, so you must be aware.
