The green alga Botryococcus braunii is a candidate for production of biofuel due to its ability to produce
A) and withstand large amounts of alcohols.
B) hydrogen gas.
C) long-chain (C30â€"C36) hydrocarbons.
D) short-chain (C8â€"C14) hydrocarbons.
Answer: C
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Molecular sequencing suggests that mitochondria arose from a group of prokaryotic organisms within the
A) Crenarchaeota. B) cyanobacteria. C) iron-oxidizing bacteria. D) Proteobacteria.
Bioenergetics can be simply defined as
A) a subdivision of biology. B) applied thermodynamics. C) the units in which energy is expressed. D) the application of biological principles to physics. E) holding constant the variables in the universe.
Celiac disease is an autoimmune disorder which destroys the microvilli of the small intestine. Vitamin B12 can be absorbed by passive diffusion across the microvilli of the small intestine. Consider a patient who has had 10% of their microvilli destroyed. If the concentration of vitamin B is 0.6 pg/ml inside the lumen of the small intestine and 0.3 pg/ml on the inside of an epithelial cell, how is the diffusion rate of vitamin B altered in this patient?
A. It is increased by 10%. B. It is reduced by .3%. C. It is reduced by .003%. D. It is reduced by 10%. E. It is increased by .3%.
The location on a bacterial chromosome where DNA replication begins is ________, and the binding of ________ opens up the double helix
a. oriC / DnaA b. oriC / DNA gyrase c. oriG / DnaA d. oriG / DNA gyrase