Solutions Manual For
Principles of Biology 4 th
Edition By Robert
Brooker, Eric Widmaier,
Linda Graham, Peter
Stiling (All Chapters
100% Original Verified
A+ Grade)
,Brooker Principles of Biology, 4e
Answers to Modeling Challenges
Chapter 2—Figure 2.2
The model will have 17 protons in the nucleus and three electron shells: two electrons in the
first shell, eight electrons in the second, and seven electrons in the third, as shown here.
Chapter 3—Figure 3.9
The modified model (shown here) would be more fluid because the lipid tails do not pack
together as tightly as the model shown in Figure 3.9b.
Chapter 4—Figure 4.22
According to the vesicular transport model, the red color would stay in the cis side of the Golgi.
According to the cisternal transport model, the red color would move from the cis side of the
Golgi, to the medial Golgi, and then to the trans side of the Golgi.
© McGraw Hill LLC. All rights reserved. No reproduction or distribution without the prior written consent of McGraw Hill LLC.
, Chapter 5—Figure 5.17
The model will look like the one in part (b) of figure 5.17, except that it will contain one binding
site for H3O+ (instead of 3 Na+ binding sites) and one binding site for K+ (instead of 2). The
H3O+ should be pumped out of the cell; it is analogous to Na+ . The gastric pump is not
electrogenic.
© McGraw Hill LLC. All rights reserved. No reproduction or distribution without the prior written consent of McGraw Hill LLC.
Principles of Biology 4 th
Edition By Robert
Brooker, Eric Widmaier,
Linda Graham, Peter
Stiling (All Chapters
100% Original Verified
A+ Grade)
,Brooker Principles of Biology, 4e
Answers to Modeling Challenges
Chapter 2—Figure 2.2
The model will have 17 protons in the nucleus and three electron shells: two electrons in the
first shell, eight electrons in the second, and seven electrons in the third, as shown here.
Chapter 3—Figure 3.9
The modified model (shown here) would be more fluid because the lipid tails do not pack
together as tightly as the model shown in Figure 3.9b.
Chapter 4—Figure 4.22
According to the vesicular transport model, the red color would stay in the cis side of the Golgi.
According to the cisternal transport model, the red color would move from the cis side of the
Golgi, to the medial Golgi, and then to the trans side of the Golgi.
© McGraw Hill LLC. All rights reserved. No reproduction or distribution without the prior written consent of McGraw Hill LLC.
, Chapter 5—Figure 5.17
The model will look like the one in part (b) of figure 5.17, except that it will contain one binding
site for H3O+ (instead of 3 Na+ binding sites) and one binding site for K+ (instead of 2). The
H3O+ should be pumped out of the cell; it is analogous to Na+ . The gastric pump is not
electrogenic.
© McGraw Hill LLC. All rights reserved. No reproduction or distribution without the prior written consent of McGraw Hill LLC.
