Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 6.1, Problem 1CC
MAKE CONNECTIONS How does the second law of
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MAKE CONNECTIONS Explain why the set of forces driving ionmovement across the plasma membrane of a cell is described as anelectrochemical (electrical and chemical) gradient (see Concept 7.4).
WHAT IF? Some membrane proteins diffuse faster in the plasma membrane when the cytoskeleton or the extracellular matrix is artificially removed than when cells are unperturbed. Explain why.
. MAKE CONNECTIONS How are the Casparian strip andtight junctions similar (see Figure 6.30)?
Chapter 6 Solutions
Campbell Biology in Focus
Ch. 6.1 - MAKE CONNECTIONS How does the second law of...Ch. 6.1 - Describe the forms of energy found in an apple as...Ch. 6.2 - Cellular respiration uses glucose and oxygen,...Ch. 6.2 - Prob. 2CCCh. 6.2 - Prob. 3CCCh. 6.3 - How does ATP typically transfer energy from...Ch. 6.3 - Prob. 2CCCh. 6.3 - MAKE CONNECTIONS Does Figure 6.10a show passive or...Ch. 6.4 - Many spontaneous reactions occur very slowly. Why...Ch. 6.4 - Why do enzymes act only on very specific...
Ch. 6.4 - WHAT IF? Malonate is an inhibitor of the enzyme...Ch. 6.4 - A mature lysosome has an internal pH of around...Ch. 6.5 - How do an activator and an inhibitor have...Ch. 6.5 - Prob. 2CCCh. 6 - Choose the pair of terms that correctly completes...Ch. 6 - Prob. 2TYUCh. 6 - Which of the following metabolic processes can...Ch. 6 - If an enzyme in solution is saturated with...Ch. 6 - Some bacteria are metabolically active in hot...Ch. 6 - If an enzyme is added to a solution where its...Ch. 6 - DRAW IT Using a series of arrows, draw the...Ch. 6 - Prob. 8TYUCh. 6 - SCIENCE, TECHNOLOGY, AND SOCIETY Organophosphates...Ch. 6 - FOCUS ON EVOLUTION A recent revival of the...Ch. 6 - FOCUS ON ENERGY AND MATTER Life requires energy....Ch. 6 - SYNTHESIZE YOUR KNOWLEDGE Explain what is...
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- Q4: Describe the structure of plasma membrane. Suggest the mechanism(s) by which each of the following substances is transported across cell membranes: a. CO2 b. Glucose c. C1– d. K+ e. Fat moleculesarrow_forwardMAKE CONNECTIONS Is the flow of ions through a ligand-gated channelan example of active or passive transport? (Review Concepts 7.3 and 7.4.)arrow_forwardVISUAL SKILLS Carbohydrates are attached to plasmamembrane proteins in the ER (see Figure 7.9). On whichside of the vesicle membrane are the carbohydrates during transport to the cell surface?arrow_forward
- EXPLORING CATALASE ACTIVITY 1. What happens to a crushed potato when exposed to distilled water for 5 minutes? Will there be bubbles or not? Explain.arrow_forwardQ: Explain how life, which is so organized could have formed when the universe is said to be headed towards more disorder according to thermodynamics. Use what you have learned about thermodynamics to explain this paradox.arrow_forward. WHAT IF? Suppose a cell’s membrane potential shiftsfrom -70 mV to -50 mV. What changes in the cell’spermeability to K+or Na+could cause such a shift?arrow_forward
- Test Your Understanding 4. Diffusion is an (a) endergonic process because free energy increases (b) endergonic process because free energy decreases (c) exergonic process because entropy increases (d) exergonic process because entropy decreases (e) more than one of the preceding options are truearrow_forwardTest Your Understanding 7.In cotransport (indirect active transport) (a) a uniporter moves a solute across a membrane against its concentration gradient (b) the move of one solute down its concentration gradient provides energy for transport of some other solute up its concentration gradient (c) a channel protein moves ions by facilitated diffusion (d) osmosis powers the movement of ions against their concentration gradient (e) sodium is directly transported in one direction, and potassium is indirectly transported in the same directionarrow_forwardMAKE CONNECTIONS Membranes must be fluid tofunction properly (as you learned in Concept 7.1). Howdoes the operation of the electron transport chainsupport that assertion?arrow_forward
- Osmosis Pre-Lab Question Research the structures that protect plant and animal cells from damage resulting from osmotic pressure. Write a few sentences explaining what they are, how they work, and where they are located.arrow_forwardLEARNING O9BJECTIVES 8Define osmosis and solve simple problems involving osmosis; for example, predict whether cells will swell or shrink under various osmotic conditions.arrow_forwardQ1: Define ATP in your own words. Q2: How is ATP involved in anabolism and catabolism? (Hint: Review Figure 5.3.) Q3: Arsenic disrupts ATP production. Why would this characteristic cause it to be a potent poison?arrow_forward
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