Modified Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321939050
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 8, Problem 8TYU
EVOLUTION CONNECTION Some people argue that biochemical pathways are too complex to have evolved because all intermediate steps in a given pathway must be present to produce the final product. Critique this argument. How could you use the diversity of
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Chapter 8 Solutions
Modified Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Biology (10th Edition)
Ch. 8.1 - MAKE CONNECTIONS How does the second law of...Ch. 8.1 - Describe the forms of energy found in an apple as...Ch. 8.1 - WHAT IF? If you place a teaspoon of sugar in the...Ch. 8.2 - Cellular respiration uses glucose and oxygen,...Ch. 8.2 - VISUAL SKILLS How would the processes of...Ch. 8.2 - WHAT IF? Some nighttime partygoers wear glow-in-...Ch. 8.3 - How does ATP typically transfer energy from an...Ch. 8.3 - Prob. 2CCCh. 8.3 - MAKE CONNECTIONS Does Figure 8.11a show passive...Ch. 8.4 - Many spontaneous reactions occur very slowly. Why...
Ch. 8.4 - Prob. 2CCCh. 8.4 - WHAT IF? Malonate is an inhibitor of the enzyme...Ch. 8.4 - Prob. 4CCCh. 8.5 - How do an activator and an inhibitor have...Ch. 8.5 - Prob. 2CCCh. 8 - Explain how the highly ordered structure of a cell...Ch. 8 - Explain the meaning of each component in the...Ch. 8 - Describe the ATP cycle: How is ATP used and...Ch. 8 - How do both activation energy barriers and enzymes...Ch. 8 - Prob. 8.5CRCh. 8 - Choose the pair of terms that correctly completes...Ch. 8 - Prob. 2TYUCh. 8 - Which of the following metabolic processes can...Ch. 8 - Prob. 4TYUCh. 8 - Some bacteria art metabolically active in hot...Ch. 8 - If an enzyme is added to a solution where its...Ch. 8 - Prob. 7TYUCh. 8 - EVOLUTION CONNECTION Some people argue that...Ch. 8 - Prob. 9TYUCh. 8 - WRITE ABOUT A THEME: ENERGY AND MATTER Life...Ch. 8 - Prob. 11TYU
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- A dichotomous key works by determining positive and negative reactions to different biochemicals. Why does this method allow us to identify one species of organism from another? For this question, do not describe the dichotomous key procedure, think about why it works, what are biochemical reactions based on? Think enzymatic pathways, what are enzymes, what are they a reflection of?arrow_forwardThe function of a biochemical pathway is to (a) supply energy to reactions (b) drive a sequence of reactions in a particular direction (c) maintain chemical equilibrium (d) make energy available to endergonic reactions (e) any of the preceding, depending on the pathwayarrow_forwardUsing good details, compare and contrast the pairs of different biochemical reactions. Create your own comparing and contrasting map similar to the one below to show your understanding. Phosphorylation vs Hydrolysis Phosphorylation vs Decarboxylation Oxidation vs Reduction.arrow_forward
- Using good details, compare and contrast the pairs of different biochemical reactions. Create your own comparing and contrasting map similar to the one below to show your understanding. Dehydration Synthesis vs. Hydrolysis Phosphorylation vs Hydrolysis Phosphorylation vs Decarboxylation Oxidation vs Reduction.arrow_forwardA dichotomous key works by determining positive and negative reactions to different biochemicals. Why does this method allow us to identify one species of organism from another? – for this question, do not describe the dichotomous key procedure, think about why it works, what are biochemical reactions based on? Think enzymatic pathways, what are enzymes, what are they a reflection of? Keep the answer between 2-3 sentencesarrow_forwardBen is studying an enzyme-catalyzed reaction. In the reaction, H+ ions are formed. He found that after a specific time, the reaction stopped, even though there was still a lot of substrate available in the mixture. a) Propose a hypothesis to explain why the reaction stopped.arrow_forward
- Metabolic pathways (a) always break down large molecules into smaller units. (b) only link smaller molecules together to create polymers. (c) are often organized as a multistep sequence of reactions. (d) occur only in mitochondria.arrow_forwardHow could you use the diversity of metabolic pathways that produce the same or similar products to critique this argument? Rank the steps from first to last. a. New enzymes cause modification of the pathway in an advantageous way. b. The biochemical pathway is gradually modified. c. A pathway exists and accomplishes some functions. d. An organism with cellular enzymes has mutations that allow new enzymes to arise.arrow_forwardEnzymes increase the rate of biochemical reactions by which process? A) donating electrons to substrates b) removing electrons from substrates c) facilitating the formation of transition states d) Changing single bonds to double bonds Substrates usually bind to enzymes by the following process: a) substrate fits tightly into active site like a lock and key b) substrate binds loosely to the active site at first. Then enzyme molds itself around the substrate to produce a tighter fit c) substrate binds tightly to the active site at first. Then the enzyme relaxes producing a looser fit. D) the substrate binds to a chaperone protein which directs it to the active site Proline racemase catalyzes the conversion of L-Proline to D-proline. It would be classed as: a) a ligase b) a hydrolase c) an isomerase d) an oxidoreductasearrow_forward
- Enzymes work by lowering the activation energy needed to start biochemical reactions and increase the reaction rate. However, increasing the reaction temperature can also help to increase the reaction rate and speed up the reaction. In your opinion, does this mean all enzymes can be operated at an extreme reaction rate at an extremely high temperature?arrow_forwardA group of young researchers was working on a biochemical pathway. At that time, they produced an enzyme having altered active site. Do you think, the activity of the new enzyme would differ from the original one? Why? On a different reaction they found, an enzyme works best at a temperature near about 30 degree Celsius. At 60 degree Celsius, the enzyme becomes inactivated. Briefly explain, why that enzyme is not working at elevated temperature?arrow_forwardWhich of the following statements is false? Enzymesa) bind to substrates.b) lower the energy of activation.c) convert coenzymes to products.d) speed up biochemical reactions.e) can be named after the kinds of reaction they catalyze.arrow_forward
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