student set up an experiment using a Visking bag containing concentrated sugar solution. Visking tubing is permeable to water but not to sugar. Figure A, shows what the bag looked like at the start and figure B shows the bag after one hour. Explain why the bag has changed its shape after one hour. Use the term “water potential” in your explanation (2).​

What is the 77 element on the periodtic table

(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell