The diffusion of molecules into a cell can be modelled by using agar cubes infused with phenolphthalein indicator and soaked in sodium hydroxide (NaOH). Phenolphthalein turns a pink color when in the presence of a base. As the NaOH diffuses into the agar, the phenolphthalein changes to pink and thus indicates how far the NaOH has diffused into the agar. By cuttting an agar block into cubes and various sizes, it is possible to show the effect of cell size on diffusion
Answers: 1
Biology, 21.06.2019 19:50
Which of the following statements about c4 carbon fixation is not true? a c4 carbon fixation is an adaptation for plants exposed to high light intensityb. c4 carbon fixation occurs in more plants than c3 carbon fixation.c c4 carbon fixation is more common in areas of high temperatures than c3 carbon fixation.d. c4 carbon fixation occurs in the inner cells of a leaf rather than the entire leaf.
Answers: 3
Biology, 22.06.2019 02:30
What is the inability of an individual or a society to achieve a minimum standard of living known as ?
Answers: 1
Biology, 22.06.2019 04:30
Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?
Answers: 1
Biology, 22.06.2019 06:10
Which process of living things produces water that enters the water cycle
Answers: 1
The diffusion of molecules into a cell can be modelled by using agar cubes infused with phenolphthal...
Social Studies, 29.10.2021 04:00
Mathematics, 29.10.2021 04:00
Mathematics, 29.10.2021 04:00
Physics, 29.10.2021 04:00
Physics, 29.10.2021 04:00
Mathematics, 29.10.2021 04:00
Mathematics, 29.10.2021 04:00
History, 29.10.2021 04:00
Mathematics, 29.10.2021 04:00
Mathematics, 29.10.2021 04:00
Social Studies, 29.10.2021 04:00
History, 29.10.2021 04:00