Base your answer to the question on the information and table below and on your knowledge of biology, A model of a cell is prepared and placed in a beaker of fluid as shown in the diagram below. The letters A, B, and represent substances in the initial experimentals
Dialysis tubing
membrane
Water
substance C
(amber color)
Water
substances A and B
(whitish color)
The table below summarizes the content and appearance of the cell model and beaker after 20 minutes.
Results After 20 Minutes
Outside of
Inside of
Cell Model Cell Model
Substances water, AC water, ABC
Color
amber
blue black
des
Identity substance and explain why it did not move out of the model cell,

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

bru what tyep of qus is dis

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms