AP Biology Final Exam: 100 % Verified Questions & Answers: Latest Updated

Which of the following claims is best supported by the experimental results? (Ans- Light is required for the electron transport chain to transfer electrons Which of the following best explains how DCMU affected the reaction? (Ans- DCMU acts as an inhibitor to the movement of electrons within the light reaction of photosynthesis Which of the following best justifies the use of tube 2 as a control treatment? (Ans- It was a positive control for measuring the effect of DCMU on the reaction A scientist designed an experiment to test an artificial membrane that mimics the phospholipid bilayer of a cell. The scientist built a tube that was divided by an artificial membrane and filled with distilled water. The scientist put a known amount of a protein into the water on one side of the membrane. After some time, the scientist measured the concentration of the protein on either side of the membrane but found that there had been no change. Which of the following experimentalchanges would allow the scientist to observe transport of a solute across the artificial membrane? (Ans- Use a small, nonpolar solute instead of a protein Which of the following best illustrates the flow of information required for the synthesis of proteins encoded in the genome of a retrovirus? (Ans- RNA-->DNA-->RNA-->Protein Which of the following best describes the process by which gas from the atmosphere is obtained by plants and used to build lipids? (Ans- Gas is directly obtained by plants as part of the carbon cycle Which of the following best explains how the phospholipid bilayer of a transport vesicle contributes to cellular functions? (Ans- The phospholipid bilayer allows the vesicle to fuse with the Golgi apparatus and the plasma membrane, allowing the exocytosis of proteins The diploid number of chromosomes in the cell of a domesticated dog is 78. Which of the following options includes the correct number of chromosomes in a cell after each cellular process (G2 checkpoint, meiosis, and fertilization, respectively)? (Ans- After G2 checkpoint: 78, After Meiosis: 39, After Fertilization: 78Based on the data in the table, which of the following best explains the effects of rotenone on cellular respiration? (Ans- Treated cells are not able to break down NADH because certain enzymes of the electron transport chain are inhibited Which of the following best explains why triploid bananas do not produce seeds? (Ans- The production of gametes is disrupted because of unequal pairing of homologous chromosomes during meiosis Which of the following best explains why the polymerase from the species T. aquaticus is often used for PCR ? (Ans- T. aquaticus polymerase does not denature at high temperatures A researcher is studying two different species. Which of the following sets of observations would best support the claim that the two species have structural similarities as a result of convergent evolution? (AnsGenetic similarity: low, Function of structure: same, Form of structure: differentBased on the cladogram, which of the following are the traits shared between ferns and pines? (Ans- Embryo and xylem only The researchers performed a chi-square analysis to test their hypothesis. Assuming the researchers use a significance level of 0.05, which of the following is closest to the critical value the researchers should use in the chi-square analysis? (Ans- 3.84 Which of the following best describes what happened to the otter population between 1750 and 1850 ? (Ans- The population lost genetic diversity as a result of a bottleneck effect Based on the information provided in the passage, which of the following best describes the effect of harmful algal blooms on otter populations? (Ans- They are a density-independent factor that negatively affects the otter population regardless of its size As otters were removed during the hunting years, there was a large decrease in the catches of fish species from the eelgrass habitats. Which of the following best explains why this decrease happened?