A student prepares a cell homogenate from spinach leaves. She performs a cellfractionation experiment to determine the centrifugal force (g-force) that will yield thehighest percentage of chloroplasts in the pellet fraction. She splits the spinachhomogenate into 5 equal parts and centrifuges the parts for 10 min. at 500xg,1000xg, 1500xg, 2000xg, or 2500xg. She then determines the proportion ofchloroplasts in the supernatant and pellet fractions.The dependent variable in the student's experiment is:O centrifugal force (x g)O time of centrifugationO proportion of chloroplasts in pelletO spinach lcaves

Answered: A student prepares a cell homogenate…

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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A student prepares a cell homogenate from spinach leaves. She performs a cell
fractionation experiment to determine the centrifugal force (g-force) that will yield the
highest percentage of chloroplasts in the pellet fraction. She splits the spinach
homogenate into 5 equal parts and centrifuges the parts for 10 min. at 500xg,
1000xg, 1500xg, 2000xg, or 2500xg. She then determines the proportion of
chloroplasts in the supernatant and pellet fractions.
The dependent variable in the student's experiment is:
O centrifugal force (x g)
O time of centrifugation
O proportion of chloroplasts in pellet
O spinach lcaves

Expert Solution

Step 1

The dependent variable, as its name suggests, is a variable that is influenced by other factors, most notably the independent variable (s). The independent variable, on the other hand, is the variable that determines the value of the dependent variable.

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