AP BIO THINGY
Study online at https://quizlet.com/_9lduvi
1. 1. Which of the following research questions was best addressed by the
experiment?: How did the chemical messengers affect the transitions of the cell cycle
2. 2. Which of the following research questions would guide an investigation
of the link between the structure of the signaling molecules and evolution of
quorum sensing?: common ancestor with similar signaling molecule
3. 3. Which of the following best describes the hydrolysis of carbohydrates?: The
addition of a water molecule breaks a bond between sugar monomers.
4. 4. UV radiation can damage DNA by breaking weak bonds. Which of the
following best explains how this occurs?: UV radiation disrupts the double helix structure by
breaking the hydrogen bonds between the nitrogenous base pairs
5. 5. Which of the following describes the most likely location of cholesterol in
an animal cell: Embedded in the plasma membrane
6. 6. Which of the following best explains the most likely method by which this
anti tumor drug works?:
7. 7. Which of the following best illustrates the flow of info required for the
synthesis of proteins encoded in the genome of a retrovirus?: RNA-DNA-RNA-Protein
8. 8. Figure 1 shows a model of the endocrine signaling pathway that regulates
ovulation which of the following observations would provide evidence of a pos-
itive feedback mechanism in this system?: Estrogen from the ovaries stimulates the hypothalamus
and anterior pituitary to secrete more GnRH, LH, and FSH.
9. 9. Two types of cells, alpha and beta cells, produce signaling molecules that
affect blood sugar levels in opposite ways. Based on figure 1, which of the fol-
lowing best explains how exercise causes blood glucose levels to rise?: Epinephrine
activates alpha cells, causing the release of glucagon, and inhibits beta cells, blocking the release of insulin.
10. 10. Which of the following explains the connection between energy, growth.
And the maintenance of an ordered system in the experiment. (grass with 3
sections): Energy input from light maintained order system.
11. 11. In which of the following tubes did the greatest reduction of DCPIP occur
over 60 min?: Tube 2
12. 12. Which of the following chains is best supported by the experimental
results?: Light is required for the electron transport chain to transfer electrons.
1/9
, AP BIO THINGY
Study online at https://quizlet.com/_9lduvi
13. 13. Which of the following best explains how DCMU affects the reaction?: -
DCMU acts as an inhibitor to the movement of electrons within the light reaction of photosynthesis.
14. 14. DCPIP is a chemical dye. When DCPIP is chemically reduced, it changes
color from blue to clear. Which of the following best justifies the use of tube 2
as a control treatment?: It was a positive control for measuring the effect of DCMU on the reaction.
15. 15.Scientists were interested in testing the effects of a rotenone, a broad
spectrum pesticide, or a cell structure.Based on the data in the table, which of
the following best explains the effects of rotenone on cellular respiration?: Treat-
ed cells are not able to break down NADH because certain enzymes of the electron transport chain are inhibited.
16. 16. On average more ATP can be produced from an NADH molecule than can
be produced from a molecule of FADH2: NADH goes through 4 protein complexes, whereas FADH2
goes through 3 protein complexes.
17. 17. A typical bag of fertilizer contains high levels of nitrogen, phosphorus,
potassium but trace amounts of magnesium and calcium. Which of the follow-
ing best matches the fertilizer component with the molecule in which it will be
incorporated by organisms in the area?: Nitrogen to nucleic acids
18. 18. Which of the following was the dependent variable in the researchers
experiment?: pH
19. 19. Which of the following best describes the process by which the bacteria
are breaking down the glucose to produce lactic acid?: bacteria break down sugars in
absence of oxygen
20. 20. Which of the following graphs best represents the data in table 1?: line graph
21. 21. According to the data, which of the following best explains the results of
the experiment?: pH of the treatment culture was lower that pH of control because the chemical increased the
bacterial metabolic rate.
22. 22. 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 control
and treatment groups?: 35 minutes
23. 23. Which of the following best explains how water is able to move upward
from the roots of a plant through its xylem in the stem and out to the leaves?-
: Water molecules and xylem are both polar.
2/9
Study online at https://quizlet.com/_9lduvi
1. 1. Which of the following research questions was best addressed by the
experiment?: How did the chemical messengers affect the transitions of the cell cycle
2. 2. Which of the following research questions would guide an investigation
of the link between the structure of the signaling molecules and evolution of
quorum sensing?: common ancestor with similar signaling molecule
3. 3. Which of the following best describes the hydrolysis of carbohydrates?: The
addition of a water molecule breaks a bond between sugar monomers.
4. 4. UV radiation can damage DNA by breaking weak bonds. Which of the
following best explains how this occurs?: UV radiation disrupts the double helix structure by
breaking the hydrogen bonds between the nitrogenous base pairs
5. 5. Which of the following describes the most likely location of cholesterol in
an animal cell: Embedded in the plasma membrane
6. 6. Which of the following best explains the most likely method by which this
anti tumor drug works?:
7. 7. Which of the following best illustrates the flow of info required for the
synthesis of proteins encoded in the genome of a retrovirus?: RNA-DNA-RNA-Protein
8. 8. Figure 1 shows a model of the endocrine signaling pathway that regulates
ovulation which of the following observations would provide evidence of a pos-
itive feedback mechanism in this system?: Estrogen from the ovaries stimulates the hypothalamus
and anterior pituitary to secrete more GnRH, LH, and FSH.
9. 9. Two types of cells, alpha and beta cells, produce signaling molecules that
affect blood sugar levels in opposite ways. Based on figure 1, which of the fol-
lowing best explains how exercise causes blood glucose levels to rise?: Epinephrine
activates alpha cells, causing the release of glucagon, and inhibits beta cells, blocking the release of insulin.
10. 10. Which of the following explains the connection between energy, growth.
And the maintenance of an ordered system in the experiment. (grass with 3
sections): Energy input from light maintained order system.
11. 11. In which of the following tubes did the greatest reduction of DCPIP occur
over 60 min?: Tube 2
12. 12. Which of the following chains is best supported by the experimental
results?: Light is required for the electron transport chain to transfer electrons.
1/9
, AP BIO THINGY
Study online at https://quizlet.com/_9lduvi
13. 13. Which of the following best explains how DCMU affects the reaction?: -
DCMU acts as an inhibitor to the movement of electrons within the light reaction of photosynthesis.
14. 14. DCPIP is a chemical dye. When DCPIP is chemically reduced, it changes
color from blue to clear. Which of the following best justifies the use of tube 2
as a control treatment?: It was a positive control for measuring the effect of DCMU on the reaction.
15. 15.Scientists were interested in testing the effects of a rotenone, a broad
spectrum pesticide, or a cell structure.Based on the data in the table, which of
the following best explains the effects of rotenone on cellular respiration?: Treat-
ed cells are not able to break down NADH because certain enzymes of the electron transport chain are inhibited.
16. 16. On average more ATP can be produced from an NADH molecule than can
be produced from a molecule of FADH2: NADH goes through 4 protein complexes, whereas FADH2
goes through 3 protein complexes.
17. 17. A typical bag of fertilizer contains high levels of nitrogen, phosphorus,
potassium but trace amounts of magnesium and calcium. Which of the follow-
ing best matches the fertilizer component with the molecule in which it will be
incorporated by organisms in the area?: Nitrogen to nucleic acids
18. 18. Which of the following was the dependent variable in the researchers
experiment?: pH
19. 19. Which of the following best describes the process by which the bacteria
are breaking down the glucose to produce lactic acid?: bacteria break down sugars in
absence of oxygen
20. 20. Which of the following graphs best represents the data in table 1?: line graph
21. 21. According to the data, which of the following best explains the results of
the experiment?: pH of the treatment culture was lower that pH of control because the chemical increased the
bacterial metabolic rate.
22. 22. 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 control
and treatment groups?: 35 minutes
23. 23. Which of the following best explains how water is able to move upward
from the roots of a plant through its xylem in the stem and out to the leaves?-
: Water molecules and xylem are both polar.
2/9
