SCCS AP Biology
Name:
FRQ 4.1
Outline and answer each of the following questions on a separate sheet of paper.
Remember to read each question carefully and answer every part of each question.
1. (1) According to the endosymbiotic theory, mitochondria and chloroplasts evolved from
aerobic and photosynthetic bacteria that were engulfed and ‘took up' residence in a host
prokaryotic cell. Use your knowledge of how plant and animal cells differ to answer the
following questions:
A. Did the ancestral plant cell engulf both types of bacteria ? Cite evidence to justify your
answer.
B. Did the ancestral animal cell engulf both types of bacteria? What evidence can you cite
to justify your answer. Cite evidence to justify your answer.
C. If the answer to either A or B is yes, then which type of bacteria would have been
engulged first? Cite evidence to justify your answer.
2. (1) What organelle would be found in increased quantities in the liver cells of a person who
abuses alcohol and/or other drugs on a regular basis?
SCCS AP Biology
Name:
FRQ 4.2
3. (1) If you were to design a structure that would have the greatest potential to interact with the
environment through surface area contact, would you design a structure similar to Figure A,
B or C? Explain your answer.
4. (1) You are a scientist who wants to produce large amounts of the protein insulin that is used to
facilitate the entry of glucose into cells. You know that insulin genes may be introduced
into bacteria by way of a plasmid vector. These bacteria may then be used as ‘micromanufacturers' of insulin. Your laboratory technicians explore various methods of
producing the desired bacteria, but you are not sure how many and which of the bacterial
cells have been transfected (have the plasmid with the insulin gene). Propose a way to
determine which bacterial cells have been transfected with the engineered plasmid and are
able to produce insulin.