Igure Q15-57 shows the orientation of the Krt1 protein on the membrane of a Golgi-derived vesicle that will fuse with the plasma membrane. Figure Q15-57Given this diagram, which of the following statements is true?

a. When this vesicle fuses with the plasma membrane, the C-terminus of Krt1 will be inserted into the plasma membrane. b. When this vesicle fuses with the plasma membrane, the entire Krt1 protein will be secreted into the extracellular space. c. When this vesicle fuses with the plasma membrane, the N-terminus of Krt1 will be in the extracellular space. d. When this vesicle fuses with the plasma membrane, the N-terminus of Krt1 will be cytoplasmic.

Mouse liver cells were homogenized and the homogenate subjected to equilibrium density-gradient centrifugation with sucrose gradients. fractions obtained from these gradients were assayed for marker molecules (i. e., molecules that are limited to specific organelles). the results of these assays are shown in the figure. the marker molecules have the following functions: cytochrome oxidase is an enzyme involved in the process by which atp is formed in the complete aerobic degradation of glucose or fatty acids; ribosomal rna forms part of the protein-synthesizing ribosomes; catalase catalyzes decomposition of hydrogen peroxide; acid phosphatase hydrolysis monophosphoric esters at acid ph; cytidylyltransferase is involved in phospholipid biosynthesis; and amino acid permease aids in transport of amino acids across membranes. a) name the marker molecule and give the number of the fraction that is most enriched for each of the following cell components: lysosomes; peroxisomes; mitochondria; plasma membrane; rough endoplasmic reticulum; smooth endoplasmic reticulum.

Which is the most likely reason the writer of the play pygmalion chose to change the character of galatea from a statue to working-class woman?

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