Which of the following is an example of a disaccharide that is produced by mammals?
a. Chitin
b. Sucrose
c. Cellulose
d. Lactose
e. Starch
d
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You are asked to give a classroom demonstration of DNA supercoiling. To do so, you take two different colored pieces of rubber tubing, twist them very tightly and excessively around each other and join the ends of the tubing appropriately. Next, you relieve the supercoiling by breaking one strand and unwinding it. In this demonstration, the breaking and unwinding to relieve the supercoiling simulates the action of
A. exonucleases. B. polymerases. C. ligases. D. topoisomerases. E. primases. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about supercoiling? 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?
Which one of the following would most likely be a product of a catabolic reaction?
A. a complex carbohydrate like cellulose B. a nucleic acid like RNA C. a motor protein like myosin D. a lipid like cholesterol E. an amino acid like tryptophan
Amoebozoans are heterotrophic protists with cells that lack ____; therefore, they can constantly change shape
a. cell junctions b. a cytoskeleton c. a cell membrane d. a cell wall or pellicle e. pseudopods
You have discovered a new cytoskeletal element and need to identify and characterize it for further work. How would you go about examining this protein to ultimately classify it as a cytoskeletal element?
What will be an ideal response?