Which of the following is the correct path in the endomembrane system for a protein synthesized on a ribosome attached to the rough ER?
a. rough ER ? smooth ER ? Golgi complex ? plasma membrane
b. rough ER ? vesicle ? smooth ER ? plasma membrane
c. rough ER ? vesicle ? lysosome ? plasma membrane
d. rough ER ? Golgi complex ? vesicle ? plasma membrane
Ans: d. rough ER ? Golgi complex ? vesicle ? plasma membrane
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All of the following are true about prosimians except
A. they are big-eyed mammals with increased visual acuity. B. only two lineages survive today. C. they are nocturnal. D. they are widespread.
A major genetic cause of emphysema is deficiency of the protein alpha-1 anti-trypsin (AAT). AAT is an enzyme that inhibits the activity of another protein. What protein is most likely the normally-inhibited target of AAT?
A. elastin-specific protease B. hemocyanin C. hemoglobin D. collagen E. myoglobin F. carbonic anhydrase Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about emphysema? 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?
Ionotropic receptors act by activating G proteins in target cells.
Answer the following statement true (T) or false (F)
Which of the following is one of Mendel's three hypotheses for explaining his observations?
a. The pairs of alleles remain together in the formation of gametes so that each gamete gets both alleles. b. Adult plants always have traits that are governed by a single pair of alleles, but the number of possible alleles varies with each trait. c. Adult plants carry a trio of genes that will determine the inheritance of each allele. d. If an adult plant has two different alleles, the alleles blend.