(01.04 MC) Sascha notices that steam appears from water only when the water is very hot. What property of water explains this observation? (3 points)

(01.01 MC)Fruit flies are commonly used in genetic investigations that focus on traits passed from parents to offspring over several generations. What can you infer is the reason fruit flies are the most commonly used organism for this type of investigation?

(01.02 MC)In the human stomach, chemical reactions take place in an acidic environment. Some of these reactions are catalyzed by enzymes. How would these enzymes most likely function in an environment where the pH was doubled?

(02.05 MC)A swimmer sprints a short distance for a competition. The swimmer is not able to take in enough oxygen to make the ATP needed for the sprint. Which of the following processes is most likely going to occur in the swimmer’s muscle cells during the competition?

(01.01 MC)Eduardo is narrowing the focus of his science fair project and compiling a list of research questions his project can answer. Which of the following questions can be answered scientifically?

(01.02 MC)Which of the following best describes what happens to an enzyme after it catalyzes a chemical reaction?

(02.03 MC)The quantity of each type of organelle in a cell varies depending on the tasks the individual cell must perform. If a scientist needed to find cells that contained a large number of chloroplasts, where would be the best place to look?

(02.02 MC)Which type of microscope has the lowest magnification power?

  (03.03 MC)A forensic scientist shines UV light on a sample and sees no glowing reaction. What can you conclude about the test?

(01.03 MC)In which of the following ways is the function of the surface of a microsphere similar to the function of an actual cell membrane?