Answered: which of the following method(s) will…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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In the lab you will prepare a dye solution to test transmembrane transport into yeast cells. The dye stock solution has a concentration of 5 mM. For your experiment, you want the dye concentration to be at 0.25 mM. You do the dilution with water. Select among the following, which of the following method(s) will give you the correct final concentration of dye?

1) adding 1 ml of stock solution to 19 ml of water.
2) making a 25-fold dilution.
3) adding 100 ml of water to 5 ml of dye stock solution.
4) diluting 3 ml of concentrated dye with water to a final volume of 60 ml.

A. All methods are accurate
B. only methods 1, 2 and 3 are accurate
C. only methods 1, 3 and 4 are accurate
D. only methods 1 and 4 are accurate
E. only method 3 is accurate
F. None of the methods reflect the proper dilution method.(edited)

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