Which portion of the nephron is not permeable to water?
a. Bowman’s capsule
b. proximal tubule
c. descending limb of loop of Henle
d. ascending limb of loop of Henle
e. collecting ducts
ANSWER: d
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DNA contains the template needed to copy itself, but it has no catalytic activity in cells. What catalyzes the formation of phosphodiester bonds between adjacent nucleotides in the DNA polymer being formed?
A) ribozymes B) DNA polymerase C) ATP D) deoxyribonucleotide triphosphates
A plant has a mutation in the gene that codes for systemin. What is the likely consequence of this mutation?
A. The plant will have a stronger than normal wound response. B. The mutated form of systemin would be recognized as a pathogen and a hypersensitive response will be initiated. C. The levels of jasmonic acid will build inside the cell creating a toxic environment. D. Systemin receptors will not be activated and proteinase inhibitor will not be transcribed. E. R genes will fail to match up with avr genes. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? does the question contain and what do they mean? Gather Content · What do you already know about about the function of systemin? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? 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?
Antibiotics are used to treat diarrhea caused by shiga toxin-producing E. coli.
Answer the following statement true (T) or false (F)
Members of what group are multicellular producers?
a. animals b. protists c. fungi d. plants e. bacteria