2020 Practice Exam 2 Mcq Ap Bio

Question: Which of the following best describes the hydrolysis of carbohydrates?

Answer: The addition of a water molecule breaks a covalent bone between sugar monomers

Question: Which of the following best describes a characteristic of DNA that makes it useful as hereditary material?

Answer: Nucleotide bases in one strand can only be paired with specific bases in the other strand

Question: Based on the pedigrees in Figure 1, which of the following best explains the observed pattern of inheritance?

Answer: The trait is an autosomal recessive, because the cross between individuals I-1 and I-2 produced an affected offspring

Question: Which of the following best describes the process by which the bacteria are breaking down the glucose to produce lactic acid?

Answer: The bacteria are breaking down sugars in the absence of oxygen

Question: Which of the following was the dependent variable in the researcher’s experiment?

Answer: pH

Question: Based on the data in Table 1, which of the following is the earliest time point at which there is a statistical difference in average pH between the control and the treatment group?

Answer: 35 minutes

Question: According to the data, which of the following best explains the results of the experiment?

Answer: The pH of the treatment culture was lower than the pH of the control because the chemical increased the bacterial metabolic rate

Question:

Answer: The substitution altered the secondary and tertiary structure of the enzyme so that the mutated enzyme folds into a different shape than the normal enzyme does

Question:

Answer: The relationship is mutualistic because both the plant and the bat benefit

Question:

Answer: 0.02430