Crystal violet is a dye that is used to stain the outer layer of certain bacterial cells and
differentiate them from other types of cells. Below is an image of bacteria cells that have been stained with crystal violet. What type of microscope would be used to obtain this type of image?
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Question 2
2.
An enzyme is a molecule that speeds up a reaction. In living things temperature and pH
affect an enzyme's ability to to speed up a reaction. The graph below displays the effects of
temperature on enzyme activity.
Which of the following is a piece of evidence that is found within the graph?
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Question 3
3.
The graph shown represents data collected that compares the various concentrations of
cardenolides (a type of steroid) found in different milkweed plants, and concentrations found in adult monarch butterflies that fed on milkweed plants as caterpillars.
Scientists concluded that cardenolide concentrations are maintained throughout the life of the monarch butterfly. Based on the graph, which statement best defends the scientists’
conclusion?
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Question 4
4.
The graph here show the activity of three enzymes that are a part of the human digestive
system.
Which of the following would be a valid conclusion about how pH affects enzyme activity?
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Question 5
5.
A population of rabbits in an area of Northern Florida was monitored to learn more about the factors that affect the population size. The graph below shows data collected about the rabbit population size for 30 generations.
Based on the data above, which of the following would be a scientific question that could be