AP BIO THINGY Actual Exam Questions &
Verified Answers /Get It 100% Accurate|Already
Graded A+
1. Which of the following research questions was best addressed by the experiment? -
ANSWER How did the chemical messengers affect the transitions of the cell cycle
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? -
ANSWER common ancestor with similar signaling molecule
3. Which of the following best describes the hydrolysis of carbohydrates? - ANSWER The
addition of a water molecule breaks a bond between sugar monomers.
4. UV radiation can damage DNA by breaking weak bonds. Which of the following best
explains how this occurs? - ANSWER UV radiation disrupts the double helix structure by
breaking the hydrogen bonds between the nitrogenous base pairs
5. Which of the following describes the most likely location of cholesterol in an animal cell -
ANSWER Embedded in the plasma membrane
6. Which of the following best explains the most likely method by which this anti tumor
drug works? - ANSWER
7. Which of the following best illustrates the flow of info required for the synthesis of
proteins encoded in the genome of a retrovirus? - ANSWER RNA-DNA-RNA-Protein
8. Figure 1 shows a model of the endocrine signaling pathway that regulates ovulation
which of the following observations would provide evidence of a positive feedback
, mechanism in this system? - ANSWER Estrogen from the ovaries stimulates the
hypothalamus and anterior pituitary to secrete more GnRH, LH, and FSH.
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 following best explains how
exercise causes blood glucose levels to rise? - ANSWER Epinephrine activates alpha cells,
causing the release of glucagon, and inhibits beta cells, blocking the release of insulin.
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) - ANSWER
Energy input from light maintained order system.
11. In which of the following tubes did the greatest reduction of DCPIP occur over 60 min? -
ANSWER Tube 2
12. Which of the following chains is best supported by the experimental results? - ANSWER
Light is required for the electron transport chain to transfer electrons.
13. Which of the following best explains how DCMU affects the reaction? - ANSWER DCMU
acts as an inhibitor to the movement of electrons within the light reaction of
photosynthesis.
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? -
ANSWER It was a positive control for measuring the effect of DCMU on the reaction.
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? - ANSWER Treated cells are not able
to break down NADH because certain enzymes of the electron transport chain are inhibited.
Verified Answers /Get It 100% Accurate|Already
Graded A+
1. Which of the following research questions was best addressed by the experiment? -
ANSWER How did the chemical messengers affect the transitions of the cell cycle
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? -
ANSWER common ancestor with similar signaling molecule
3. Which of the following best describes the hydrolysis of carbohydrates? - ANSWER The
addition of a water molecule breaks a bond between sugar monomers.
4. UV radiation can damage DNA by breaking weak bonds. Which of the following best
explains how this occurs? - ANSWER UV radiation disrupts the double helix structure by
breaking the hydrogen bonds between the nitrogenous base pairs
5. Which of the following describes the most likely location of cholesterol in an animal cell -
ANSWER Embedded in the plasma membrane
6. Which of the following best explains the most likely method by which this anti tumor
drug works? - ANSWER
7. Which of the following best illustrates the flow of info required for the synthesis of
proteins encoded in the genome of a retrovirus? - ANSWER RNA-DNA-RNA-Protein
8. Figure 1 shows a model of the endocrine signaling pathway that regulates ovulation
which of the following observations would provide evidence of a positive feedback
, mechanism in this system? - ANSWER Estrogen from the ovaries stimulates the
hypothalamus and anterior pituitary to secrete more GnRH, LH, and FSH.
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 following best explains how
exercise causes blood glucose levels to rise? - ANSWER Epinephrine activates alpha cells,
causing the release of glucagon, and inhibits beta cells, blocking the release of insulin.
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) - ANSWER
Energy input from light maintained order system.
11. In which of the following tubes did the greatest reduction of DCPIP occur over 60 min? -
ANSWER Tube 2
12. Which of the following chains is best supported by the experimental results? - ANSWER
Light is required for the electron transport chain to transfer electrons.
13. Which of the following best explains how DCMU affects the reaction? - ANSWER DCMU
acts as an inhibitor to the movement of electrons within the light reaction of
photosynthesis.
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? -
ANSWER It was a positive control for measuring the effect of DCMU on the reaction.
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? - ANSWER Treated cells are not able
to break down NADH because certain enzymes of the electron transport chain are inhibited.
