Integrating Concepts in Biology

PowerPoint Slides for Chapter 23:Homeostasis at the Organismal Level

byA. Malcolm Campbell, Laurie J. Heyer, and

Chris Paradise

Section 23.1

Title Page

Opening Figure

Homeostasis of Morphology

Body Temperature Homeostasis

Fig. 23.1

Season Dimorphism in Arctic Fox

Fig. 23.2

Fur Adjusts to Seasonal Weather

Fig. 23.3

cha

nge

(% o

f A

ugus

t)

Fig. 23.4

Season Dimorphism in Camels

Core Body Temperature Variations

Fig. 23.5

Loss of Cat Temperature Regulation

Fig. 23.6

Temperature Responsive Neurons

Fig. 23.7

Horse Anatomy Helps Thermoregulation

Fig. 23.8

Human Thermostat Maintains 37° C

Fig. 23.9

2009 Paper Gender Distribution

Fig. ELSI 23.1

Obesity Epidemic in America

Fig. 23.10

Physiology of Body Fat Homeostasis

Fig. 23.11

Parabiotic Mice & Two Obesity Genes

Fig. 23.12

Table 23.1

Table 23.1

compare wt and ob rats

Table 23.2

Table 23.2

compare wt, ob and db mice

Cloning and Sequencing ob Gene

Fig. 23.13

Molecular Cause of ob and db Alleles

Fig. 23.14

Functional Verification of Leptin

Fig. 23.15

Leptin Receptor Distribution

Fig. 23.16

wt and db Gene Structure

Fig. 23.17

Lipostat Maintains Fat Homeostasis

Fig. 23.18

Human Variation of Leptin Levels

Fig. 23.19

Leptin Affects More than Fat

Fig. 23.20

Table 23.3

Table 23.3

fertility of ob males +/- leptin injections

Table 23.3 Mouse litter sizes from wt females mated with ob males.

Male Sterility in ob Mice

Fig. 23.21

High Fat Diets Affects Lipostat

Fig. ELSI 23.2

Plants Must Survive Environmental Stress

Fig. 23.22

Genes Respond to Environmental Stress

Fig. 23.23

Correlation of Gene Responses and Time

Fig. 23.24

Table 23.4

Table 23.4

Table 23.4 Number of genes that responded to only one environmental stress.

Table 23.5

Table 23.5

Table 23.5 Current estimated number of genes for plants and animals.

Fig. 23.25

Specific Responses to Stresses

Homeostasis of Apple Genome

Fig. 23.26

Evolutionary History of Apple Genome

Fig. 23.27

Tetraploid Plants from Diploid Parents

Fig. 23.28

Non-Random Inhibition of Alleles

Fig. 23.29