What is the path of an excreted water molecule as it moves from the glomerulus to collecting duct?
A. distal convoluted tubule-glomerular capsule-proximal convoluted tubule-loop of nephron--collecting duct
B. glomerular capsule-proximal convoluted tubule-loop of nephron-distal convoluted tubule-collecting duct
C. proximal convoluted tubule-glomerular capsule-loop of nephron-distal convoluted tubule-collecting duct
D. glomerular capsule-proximal convoluted tubule-distal convoluted tubule-loop of nephron-collecting duct
E. loop of nephron-glomerular capsule-proximal convoluted tubule-distal convoluted tubule-collecting duct
Answer: B
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Cytochromes contain a heme group similar to that in hemoglobin. The iron atom (Fe) in the center of the group can be oxidized and reduced. If someone was suffering from iron deficiency anemia, what stage of cellular respiration would be most affected?
A. Glycolysis B. The Krebs cycle C. The electron transport chain D. Fermentation Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about redox reactions and when they take place during cellular respiration? What other information is related to the question? Choose Answer Do you have all the information needed to determine which stage of cellular respiration would be most affected by an iron deficiency? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
At some point in their life cycle, amphibians may respire via all of the following except:a
gills. b. lungs. c. swim bladder. d. skin. e. book lungs
You are breeding different varieties of roses in your garden. When you cross a true-breeding yellow "Texas Beauty" rose with a true-breeding "Ruby" red rose, you get all red roses. But when you cross a "Texas Beauty" yellow with the yellow variety "Jealousy," you get a 9:7 ratio of red to yellow flowers! What can you conclude from these results?
A. There is no recessive allele for the red pigment gene. B. There is a mutation in the gene for yellow pigment in the "Jealousy" variety. C. The environment, and not genes, influences pigment in these rose varieties. D. There are epistatic interactions between at least two genes for rose pigment. E. The red allele is dominant to the yellow allele.
Which of the following sequences of DNA would most likely be damaged by UV radiation?
A. AGTTCGCTT B. ATAGAGCGC C. AGAGCGCAT D. AGTACGCAT