Imagine you have radioactively labeled a protein in the lumen of the endoplasmic reticulum. Where would you predict the labeled protein might end up?
A. in the lumen of the Golgi apparatus
B. in the lumen of a vesicle
C. outside the cell
D. All of the answer options are correct.
Answer Key: D
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Amoebae move by crawling over a surface (cell crawling), which involves _____
A) growth of actin filaments to form bulges in the plasma membrane B) setting up microtubule extensions that vesicles can follow in the movement of cytoplasm C) reinforcing the pseudopod with intermediate filaments D) cytoplasmic streaming
At the end of glycolysis, the carbon molecules originally found in the starting glucose molecule are in the form of:
A. one pyruvate molecule. B. two pyruvate molecules. C. two ATP molecules. D. two NADH molecules. E. four ATP molecules.
Which of the following is true of eudicots but not monocots?
A. Eudicots have flower parts usually in multiples of 4 or 5. B. Eudicots have true seed leaves but monocots do not. C. Eudicots have vascular bundles scattered in their stems. D. Eudicots have venation that is parallel to the leaf axis. E. Eudicots have stomatal pores but monocots do not.
A population of 100 animals in logarithmic growth has rmax = 0.4 and K = 102. Using the fact that r =
rmax(K ? N)/K, calculate the value of r.
a. 0.0078 b. 0.792 c. ?0.580 d. 0.078 e. 0.99