Answered: From the experiment, what are the…

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. From the experiment, what are the approximate optimal temperatures of organisms A-D? Please report temperature ranges wherever applicable. Classify these organisms based on their temperature requirements.

B. While doing this experiment, your friend dropped a tube of organism B on herself by accident. Although the spill was cleaned, she is worried about catching an infection. What would your advice to her be based on the data that you have generated in the experiment?

C. Three out of four organisms did not grown on the plates incubated at 680C. What is the likely molecular explanation for this? Hint: What cellular structures are affected at this temperature?

In this experiment, 4 different organisms (A, B, C and D) were streaked on nutrient agar plates
and incubated at different temperatures of 68, 40, 25 and 4 °C. After incubation at selected
temperature, an increase in cell density is indicative of cell growth. For comparison, a control
plate without any bacterial growth is shown. By this method optimal temperature range of an
organism can be estimated. Read the results below and answer questions.
(A)
(C)
68°C
(B)
(D)
(A)
(C)
(A)
(C)
40°C
4°C
(B)
MOR
(D)
(B)
(D)
(A)
(C)
(A)
(C)
25°C
Control
(B)
(D)
(B)
(D)

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