Bacteria that can grow in the presence or absence of oxygen (O2) are called __________.
a. facultative anaerobes
b. microaerophiles
c. obligate aerobes
d. obligate anaerobes
Answer: a. facultative anaerobes
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Amanda was studying turtles based on DNA analysis. Under the current classification scheme, which of the following turtle species are thought to be most closely related? (1) Graptemys ouachitensis, (2) Trachemys scripta, (3) Apalone spinifera, (4) Graptemys kohni
A. 1 and 3 due to inductive reasoning B. 1 and 3 due to deductive reasoning C. 2 and 3 due to inductive reasoning D. 1 and 4 due to inductive reasoning E. 2 and 3 due to deductive reasoning F. 1 and 4 due to deductive reasoning
During electron transport reactions,
A) OH- accumulates on the outside of the membrane while H+ accumulates on the inside. B) OH- accumulates on the inside of the membrane while H+ accumulates on the outside. C) both OH- and H+ accumulate on the inside of the membrane. D) both OH- and H+ accumulate on the outside of the membrane.
The processes listed below represent major chemical pathways in
photosynthesis. Respond to statements 80–84 with reference to these five processes. a. light-dependent reactions b. chemosynthetic reactions c. carbon dioxide fixation d. Calvin-Benson cycle e. C4 pathway D 80. This leads to the formation of a glucose-6-phosphate from two molecules of phosphoglyceraldehyde. M 81. In this process carbon dioxide is incorporated first into an unstable intermediate compound and then into phosphoglycerate. E 82. This yields NADPH as well as ATP. M 83. This is a carbon-fixing system that precedes the Calvin-Benson cycle in some plants. M 84. PGAL molecules are formed from the reaction of PGA molecules with ATP and NADPH in this pathway.
Explain the importance of information transfer in living systems. Include three specific examples. What will be an ideal response?