Hops is the herb that gives beer some of its aroma and flavor.
Answer the following statement true (T) or false (F)
True
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You a given a plant tissue in lab and asked to determine if the tissue is a source or a sink. Microscopic analysis reveals an abundance of colorless parenchyma cells with plastids. Only one biochemical test reacts positively with your sample. In the presence of iodine, the plastids turn a dark purplish color. Based on this information you determine your sample is
A. a source because your sample is rich in carbohydrates. B. a source because your sample contains plastids. C. a sink because your sample is rich in carbohydrates. D. both a source and sink because it contains both plastids and carbohydrates. Clarify Question What is the key concept addressed by the question? What type of thinking is required? What key words does the question contain and what do they mean? Gather Content What do you already know about the function of a sink in a plant? 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?
A reaction involving Substance X yields among its products one denoted as XH. What conclusion can be drawn from this fact?
a. Substance X has absorbed a neutron, becoming an unstable heavy isotope. b. Substance X has been reduced after accepting an electron from another reactant. c. Substance X has formed a hydrogen bond with the other reactants in this reaction. d. The products of this reaction are Substance X and a significant amount of heat.
Enzymes function by
a. being consumed (used up) in the reaction. b. lowering the activation energy of a reaction. c. combining with otherwise toxic substances in the cell. d. adding heat to the cell to speed up the reaction.
James and Sally wanted to have a baby but were not having any luck, so they decided to try an artificial means of conception. They eventually were directed to a laboratory, where sperm and eggs were placed in a dish. This allows a sperm to merge with the
egg as it would in the oviduct. This procedure is called ________. A) surrogate motherhood B) in vitro fertilization C) gamete intrafallopian transfer D) zygote intrafallopian transfer