Cambell Biology 11e Vol1 For Utah Valley University Ch 1-25
11th Edition
ISBN: 9781323691519
Author: Urry
Publisher: PEARSON
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Chapter 8, Problem 8.4CR
How do both activation energy barriers and enzymes help maintain the structural and
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Chapter 8 Solutions
Cambell Biology 11e Vol1 For Utah Valley University Ch 1-25
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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- Would you describe metabolic pathways as inherently wasteful or inherently economical, and why?arrow_forwardHow does energy flow in biologicalsystems?arrow_forwardThe figure above represents changes in different types of metabolic pathways (y-axis) as energy charge in a cell (x-axis) changes. What is the best description of the types of reactions shown by the green line labeled "A"? a) Catabolic, energy-consuming pathways b) Anabolic, energy-consuming pathways c) Anabolic, energy-producing pathways d) Catabolic, energy-producing pathwaysarrow_forward
- Which type of enzyme regulation is best for the following situations?(a) An enzyme that becomes overactive during a disease(b) An enzyme needed only when there is low blood glucose(c) An enzyme that springs into action when a traumatic injury occurs(d) An enzyme needed only during adolescencearrow_forwardIs it likely that any metabolic pathway can exist without control mechanisms?arrow_forwardWhich of the following does not occur in the mitochondria? A) Krebs cycle C) glycolsis D) electron transportarrow_forward
- Therefore the role of the enzyme is to circle one: (regulate / speed up /inhibit) a reaction by circle one: (INCREASING / DECREASING) the Does the forward reaction require an input of cellular energy? circde one: (YES / NO) If yes, where does that energy come from? Does the forward reaction release energy? circle one: (YES / NO) If yes, what is that energy used to make? Is the activation energy provided by ATP circle one: (YES / NO). It is provided by physical strain on the bond from how the holds the c. The reverse reaction would be written as: Please select the correct letters from graph (a-e) to match the description for the reverse Activation energy without an enzyme. Activation energy with an enzyme. AG (change in free energy). reaction. Does the reverse reaction require an input of cellular energy (ATP) ? circle one: (YES / NO) If yes, where does that energy come from? Does the reverse reaction release energy? circle one: (YES / NO) If yes, what is that energy used to make?arrow_forwardWhat is the enzymatic activity of sodium-potassium ATPase (pump)? binds to and hydrolyzes ATP; binds to 3 Na+ in cytoplasm and releases outside cell; binds to 2 K+ outside cell and releases into cytoplasm binds to and hydrolyzes ATP; binds to 2 Na+ in cytoplasm and releases outside cell; binds to 3 K+ outside cell and releases into cytoplasm binds to and hydrolyzes GTP; binds to 3 Na+ in cytoplasm and releases into nucleus; binds to 2 K+ inside cell and releases into lysosome binds to and hydrolyzes 3 ATP; binds to 1 Na+ in cytoplasm and releases outside cell; binds to 1 K+ outside cell and releases into cytoplasmarrow_forwardQ1: Why is it important that enzymes are not permanently altered when they bind with substrate molecules? Q2: How would a higher temperature or higher salt concentration make it more difficult for an enzyme to function effectively? Q3: If a cell was unable to produce a particular enzyme necessary for a metabolic pathway, describe how the absence of that enzyme would affect the cell.arrow_forward
- A cell uses ATP to carry energy, which is released as needed to drive chemical reactions and work. A mutation is found that prevents #2 but not #1. Which of the following is the best hypothesis for which protein is mutated? ATP cannot be synthesized from ADP and Pἰ due to a mutation in ATP synthase. Covalently bound Pἰ cannot be removed from molecules due to a mutation in phosphatase. Non-covalently bound ATP cannot be split into ADP and Pἰ due to a mutation in ATP hydrolase. ATP cannot bind covalently to molecules and split into a bound Pἰ and free-floating ADP due to a mutation in a kinase.arrow_forwardDuring cellular respiration, which of the following diffuses through ATP synthase? A)Phosphates B)Electrons C)Carbon dioxide (CO2) D)Protons (H+ ions) E)ATP 15arrow_forwardThere are many metabolic pathways in a biological system, and it is critical to regulate these pathways so that only particular pathways are active at a single time. Which enzyme would be in the regulation point in the hypothetical pathway shown below. A¹B 2C 3 D4E A) A → B B) B-C C) C-D D) D→ E E) The regulation point is highly dependent upon the metabolic pathway.arrow_forward
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