A tomato plant is mutated with gamma radiation. A cellular analysis reveals that ATP synthase complexes found in the thylakoid membrane are inserted backwards into the membrane. What is the most likely outcome of this error?
A. A proton gradient will not be established in the thylakoid space in response to the activation of photosystem II
B. The proton gradient in the thylakoid space will not be able to be used to generate ATP
C. The thylakoid membrane will become permeable to protons as a result of this change
D. The ATP synthase will pump protons into the stroma in this orientation
E. This change is not likely to have any effect on the function of the ATP synthase enzyme with respect to its role in photosynthesis
B. The proton gradient in the thylakoid space will not be able to be used to generate ATP
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If orange juice has a pH of 4 then
A. the H+ concentration is 4. B. it is an acidic solution. C. it is an alkaline solution. D. it is an acidic solution with a H+ concentration of 4. E. None of these choices are correct.
Choose the evidence supporting the argument that a small number of changes in developmental regulatory genes can result in large phenotypic changes.(choose all that apply)
_____ Closely related animals can have very different patterns of development. _____ Most developmental genes are highly conserved. _____ Much of phenotypic variation is environmentally caused. _____ The developmental "toolkit" consists of a large number of genes. 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 developmental regulatory genes? Consider Possibilities · Consider the different answer options. Which can you rule out? 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 is the least successful method of birth control?
a. withdrawal method b. a condom c. a diaphragm d. tubal ligation e. oral contraceptives
The human body is typically free of archaeal species
Indicate whether the statement is true or false