Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 6.2, Problem 2CC
DRAW IT Ø Draw a simplified elongated cell that measures 125×1×1 arbitrary units. A nerve cell would be roughly this shape. Predict how its surface-to-volume ratio would compare with those in Figure 6.7. Then calculate the ratio and check your prediction.
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Chloride ions (Cl-) are in higher concentration outside of the cell compared to the intracellular fluid (ICF). If a cell is at rest and chloride-specific ion channels open, identify what would happen. Choose ALL of the correct answers.
1 Some chloride will enter the cell, but the concentration gradient for chloride will not change much.
2 The membrane will hyperpolarize
3 Chloride will come into the cell until it reaches chemical equilibrium.
4 The membrane potential won't change.
5 The membrane will depolarize
6 Some chloride will leave the cell, but the concentration gradient for chloride will not change much
Match the following
Actin filaments
Intermediate filaments
Microtubules
[Choose ]
Most concentrated just under the cell membrane and help maintain the shape of cellular projections
✓ Support cell shape and fix organelles in place
Act as track for organelles and other materials to move
Most concentrated just u
[Choose ]
Left Compartment Right Compartment
7 grams of Z per liter solution 4 grams of XY per liter of solution
total volume = 1 liter total volume = 1 liter
Solute Z has a molecular weight of 20 (non-dissociable)
Solute XY has a molecular weight of 10 (dissociates into X+ and Y-)
If X+ and Y- are ions, which are permeable through the membrane, and Z is not, what will happen and why?
Chapter 6 Solutions
Campbell Biology
Ch. 6.1 - Prob. 1CCCh. 6.1 - Prob. 2CCCh. 6.2 - Briefly describe the structure and function of the...Ch. 6.2 - DRAW IT Draw a simplified elongated cell that...Ch. 6.3 - What role do ribosomes play in carrying out...Ch. 6.3 - Describe the molecular composition of nucleoli and...Ch. 6.3 - Prob. 3CCCh. 6.4 - Describe the structural and functional...Ch. 6.4 - Describe how transport vesicles integrate the...Ch. 6.4 - WHAT IF? Imagine a protein that functions in the...
Ch. 6.5 - Describe two characteristics shared by...Ch. 6.5 - Prob. 2CCCh. 6.5 - Prob. 3CCCh. 6.6 - Prob. 1CCCh. 6.6 - WHAT IF? Males afflicted with Kartagener's...Ch. 6.7 - In what way are the cells of plants and animals...Ch. 6.7 - Prob. 2CCCh. 6.7 - MAKE CONNECTIONS The polypeptide chain that makes...Ch. 6.8 - Prob. 1CCCh. 6 - Prob. 6.1CRCh. 6 - Explain how the compartmental organization of a...Ch. 6 - Describe the relationship between the nucleus and...Ch. 6 - Describe the key role played by transport vesicles...Ch. 6 - What does the endosymbiont theory propose us the...Ch. 6 - Describe the role of motor proteins inside the...Ch. 6 - Prob. 6.7CRCh. 6 - When a cell ingests a bacterium, what role does...Ch. 6 - Prob. 1TYUCh. 6 - Prob. 2TYUCh. 6 - Which of the following is present in a prokaryotic...Ch. 6 - Prob. 4TYUCh. 6 - Which cell would be best for studying lysosomes?...Ch. 6 - Prob. 6TYUCh. 6 - EVOLUTION CONNECTION (a) What cell structures best...Ch. 6 - SCIENTIFIC INQUIRY Imagine protein X, destined to...Ch. 6 - WRITE ABOUT A THEME: ORGANIZATION Considering some...Ch. 6 - SYNTHESIZE YOUR KNOWLEDGE The cells in this SEM...
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