Gorter and Grendel's classic experiment allowed them to observe that the erythrocyte plasma membrane contains _______ the surface area of the erythrocytes.
a. enough lipid to occupy a monolayer equal to
b. enough lipid to occupy a monolayer equal to twice
c. less lipid than would occupy a monolayer equal to
d. enough lipid to occupy a monolayer equal to one-half
Ans: b. enough lipid to occupy a monolayer equal to twice
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Many animals have a mutually-beneficial, symbiotic relationship with bacteria that reside in their guts. To study the effects of these relationships in more detail, research organisms such as fish and mice have been raised under germ-free conditions. What important process do you predict is compromised in germ-free mice?
A. synthesis of essential amino acids B. vitamin C synthesis C. leptin synthesis D. vitamin D synthesis E. vitamin K synthesis Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about essential nutrients can be made by bacteria in the intestines? What other information is related to the question? Choose Answer · Given what you now know, what information 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?
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A. hypersalinic archaea B. autotrophic archaea C. psychrophile archaea D. hyperthermophilic archaea
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A) limbic system B) hypothalamus C) thalamus D) pineal gland
How many unique haploid gametic genotypes could be produced through independent assortment by an organism with the diploid genotype AABbCCDdEe?
A. 2 B. 4 C. 8 D. 16