EBK CAMPBELL BIOLOGY
10th Edition
ISBN: 9780136539414
Author: Reece
Publisher: VST
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Chapter 7, Problem 10TYU
WRITE ABOUT A THEME: INTERACTIONS A human pancreatic cell obtains O2—and necessary molecules such as glucose, amino acids, and cholesterol—from its environment, and it releases CO2 as a waste product. In response to hormonal signals, the cell secretes digestive enzymes. It also regulates its ion concentrations by exchange with its environment. Based on what you have just learned about the structure and function of cellular membranes, write a short essay (100-150 words) to describe how such a cell accomplishes these interactions with its environment.
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Students have asked these similar questions
. Diatomic oxygen (O2) exhibits which of the following membrane transport movements?
A. it is not able to cross the membrane by passive transport, because it is big, polar, and inorganic
it is not able to cross the membrane by active transport, because it is big, polar, and inorganic
it is able to cross the membrane by facilitated diffusion, because it is small, polar, and organic
it is able to cross the membrane by active transport, because it is big, nonpolar, and organic
it is able cross the membrane by simple diffusion, because it is small, nonpolar, and inorganic
Discuss the permeability of the phospholipid bilayer to the
molecules and ions listed below. Is the bilayer freely permeable,
somewhat permeable, or impermeable to each of these?
1. OH-
2. H*
3. 0₂
4. C6H12O6
5. H₂O
6. CO₂
Which is not a major function of the protein in cell membranes?
They are important for membrane transport
They are important for cell-to-cell joining
They function as enzymes
They regulate membrane fluidity
Which is not true about cell membranes?
They frequently flip-flop from one side of the membrane to
the other
-
They can move freely within one side of the bilayer
Fatty acid tails of phospholipids form the membrane interior
The interior of the bilayer is hydrophoic
Answer the two questions! Will dislike if incomplete
Chapter 7 Solutions
EBK CAMPBELL BIOLOGY
Ch. 7.1 - VISUAL SKILLS Carbohydrates are attached to...Ch. 7.1 - WHAT IF? How would the membrane lipid composition...Ch. 7.2 - What property allows O2 and CO2 to cross a lipid...Ch. 7.2 - VISUAL SKILLS Examine Figure 7.2. Why is a...Ch. 7.2 - MAKE CONNECTIONS Aquaporins exclude passage of...Ch. 7.3 - How do you think a cell performing cellular...Ch. 7.3 - WHAT IF? If a Paramecium swims from a hypotonic...Ch. 7.4 - Sodium-potassium pumps help nerve cells establish...Ch. 7.4 - VISUAL SKILLS Compare the sodium-potassium pump...Ch. 7.4 - MAKE CONNECTIONS Review the characteristics of...
Ch. 7.5 - As a cell grows, its plasma membrane expands. Does...Ch. 7.5 - DRAW IT Return to Figure 7.9, and circle a patch...Ch. 7.5 - Prob. 3CCCh. 7 - In what ways are membranes crucial to life?Ch. 7 - How do aquaporins affect the permeability of a...Ch. 7 - What happens to a cell placed in a hypertonic...Ch. 7 - ATP is not directly involved in the functioning of...Ch. 7 - Which type of endocytosis involves the binding of...Ch. 7 - In what way do the membranes of a eukaryotic Cell...Ch. 7 - According to the fluid mosaic model of membrane...Ch. 7 - Which of the following factors would tend to...Ch. 7 - Which of the following processes includes all the...Ch. 7 - Prob. 5TYUCh. 7 - DRAW IT An artificial "cell" consisting of an...Ch. 7 - EVOLUTION CONNECTION Paramecium and other...Ch. 7 - Prob. 8TYUCh. 7 - SCIENCE, TECHNOLOGY, AND SOCIETY Extensive...Ch. 7 - WRITE ABOUT A THEME: INTERACTIONS A human...Ch. 7 - SYNTHESIZE YOUR KNOWLEDGE In the supermarket,...
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