How do phospholipids interact with water molecules?
A) The polar heads avoid water; the nonpolar tails attract water (because water is polar and opposites attract).
B) Phospholipids do not interact with water because water is polar and lipids are nonpolar.
C) The polar heads interact with water; the nonpolar tails do not.
D) Phospholipids dissolve in water.
C
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Abscisic acid synthesized in the root travels to different parts of the shoot where it regulates transpirational water loss. What is the most likely way that ABA travels from the root to the various locations within the shoot?
A. vessels and tracheids B. sieve tubes C. between cell walls D. from cell to cell through the plasmodesmata 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 transportation of materials within 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?
all organs must use _______ primarily for energy
Fill in the blank(s) with the appropriate word(s).
The influence of genetic drift on allele frequencies
increases as a. gene flow increases. b. population size decreases. c. mutation rate decreases. d. the number of heterozygous loci increases. e. random mating increases.
If a cell was capable of bypassing metaphase and going directly from prometaphase to anaphase, what is the most likely consequence of this?
A. The resulting daughter cells would be completely normal. B. The resulting daughter cells would have different numbers of chromosomes. C. The resulting daughter cells would not have a nuclear envelope. D. The resulting daughter cells would have significantly different quantities of cytoplasmic materials.