The synthesis of ATP by oxidative phosphorylation, using the energy released by movement of protons across the membrane down their electrochemical gradient, is an example of _____
A) active transport
B) an endergonic reaction coupled to an exergonic reaction
C) a reaction with a positive ?G
D) osmosis
E) allosteric regulation
Answer: B
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The enzyme catalase functions in the breakdown of hydrogen peroxide, a toxic by-product of fatty acid digestion. In
which cellular organelle is catalase found?
a. Golgi body b. peroxisome c. lysosome d. ribosome e. mitochondrion
The type of succession that occurs in an area where no community previously existed is succession.
A. tertiary B. primary C. climax D. keystone E. secondary
Which of the following is TRUE of fetal circulation?
a. The allantois carries fetal blood to the placenta. b. Fetal hemoglobin binds oxygen more easily than the adult form. c. Fetal blood mixes with maternal blood to ensure proper gas exchange. d. Blood flow into the lungs is 50% of adult flow. e. The liver, heart and lungs receive the majority of blood flow.
A one-year-old child is brought to the hospital with high fever and limited range of motion of the head. The child frequently rubs her head. A recent history is not immediately available due to a language barrier on the part of the parent. The attending
physician suspects meningitis and orders a sample of CFS be collected. Describe the various diagnoses possible based on the results with the CSF. What will be an ideal response?