If one homogenizes liver cells, separates the membranes from the cytoplasm, and then adds epinephrine to only the cytoplasmic portion,
A) cAMP will be produced.
B) G-proteins will be activated.
C) adenylyl cyclase will be activated.
D) calcium ions will be released.
E) none of the above
E) none of the above
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The animal labeled "E" is a
a. mosquito of the genus Aedes. b. mosquito of the genus Anopheles. c. mosquito of the genus Culex. d. fly of the genus Musca. e. tick of the genus Amblyoma.
A gene in a sheep-like species has been found to differ from that in related species by the inclusion of a variable number of tandem repeats of a short sequence. These repeats or duplications arise from what process?
What will be an ideal response?
Some people trying to lose weight have gone on the Atkins diet, in which they eat mostly high-protein, low-carbohydrate foods such as meat, cheese, and eggs
The amino acids in these protein-rich diets, such as alanine, glycine, and serine, can be converted to pyruvate by deamination (removal of the amino group). Based on this scenario as well as your knowledge of cellular respiration, how many ATP, NADH, and FADH2 molecules will be generated from one molecule of alanine during the mitochondrial matrix reactions? Hint: Only consider the reactions from the point at which the alanine carbons enter cellular respiration. A) 2 FADH2, 6 NADH, and 2 ATP B) 1 FADH2, 1 NADH, and 1 ATP C) 2 FADH2, 3 NADH, and 2 ATP D) 0 FADH2, 1 NADH, and 2 ATP E) 1 FADH2, 4 NADH, and 1 ATP
The mucous sheet produced by the endostyle traps the microscopic food particles in the water. This sheet is located in the pharynx of what animal?
A. lancelet B. crinoid C. arrow worm D. acorn worm E. tunicate