Defend the argument that seedless vascular plants are among the most economically important plants that have ever
lived.
What will be an ideal response?
ANSWER: When leaves, branches, and other parts of seedless vascular plants fell to the ground in the
swampy landscape of the Carboniferous period, they became buried in anaerobic
sediments. Over geological time, these buried remains were compressed and modified,
forming deposits of coal, oil, and natural gas that have been major global energy sources
since the Industrial Revolution.
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An organelle that finishes a protein and
packages it for export is a
a. lysosome b. Golgi body c. peroxisome d. smooth ER e. rough ER
The double membrane of mitochondria contains the ATP-making machinery; therefore, this is where ____ would be
found.
a. proteins and enzymes required for aerobic respiration b. DNA c. ribosomes d. plasmids e. vesicles
Each round of reactions in PCR ____ the number of DNA molecules from the target site
a. doubles b. triples c. quadruples d. quintuples e. does not affect
What parts of the transformation procedure are done to increase the competence of the bacterial cells?
a. treatment with calcium b. brief heat shock c. Using a microcentrifuge d. Adding LB to the tube