Campbell Biology with MasteringBiology Canvas Direct Integration for BSC 2011 University of South Florida, 1/e
1st Edition
ISBN: 9781323442982
Author: Reece
Publisher: Pearson Education
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Chapter 8.4, Problem 4CC
Summary Introduction
To draw: A graph depicting the
Introduction: Lysosomes are the enzymes that are present in the cytoplasm and are used in breaking down of molecules such as carbohydrates. It also digests foreign agents during phagocytosis mechanism in many cellular organisms. It is also released during apoptotic reactions.
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Chapter 8 Solutions
Campbell Biology with MasteringBiology Canvas Direct Integration for BSC 2011 University of South Florida, 1/e
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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- Watch this video (http://openstaxcollege.org/l/ribosome) to learn about ribosomes. The ribosome binds to the mRNA molecule to start translation of its code into a protein. What happens to the small and large ribosomal subunits at the end of translation?arrow_forwardRIPs as Cancer Drugs Researchers are taking a page from the structure-function relationship of RIPs in their quest for cancer treatments. The most toxic RIPs, remember, have one domain that interferes with ribosomes, and another that carries them into cells. Melissa Cheung and her colleagues incorporated a peptide that binds to skin cancer cells into the enzymatic part of an RIP, the E. coli Shiga-like toxin. The researchers created a new RIP that specifically kills .skin cancer cells, which are notoriously resistant to established therapies. Some of their results are shown in FIGURE 9.17. FIGURE 9.17 Effect of an engineered RIP on cancer cells. The model on the left shows the enzyme portion of E. coli Shiga-like toxin engineered to carry a small sequence of amino acids (in blue) that targets skin cancer cells. (Red indicates the active site.) The graph on the right shows the effect of this engineered RIP on human cancer cells of the skin (); breast () liver (); and prostate (). Which cells had the greatest response to an increase in concentration of the engineered RIP?arrow_forwardRIPs as Cancer Drugs Researchers are taking a page from the structure-function relationship of RIPs in their quest for cancer treatments. The most toxic RIPs, remember, have one domain that interferes with ribosomes, and another that carries them into cells. Melissa Cheung and her colleagues incorporated a peptide that binds to skin cancer cells into the enzymatic part of an RIP, the E. coli Shiga-like toxin. The researchers created a new RIP that specifically kills .skin cancer cells, which are notoriously resistant to established therapies. Some of their results are shown in FIGURE 9.17. FIGURE 9.17 Effect of an engineered RIP on cancer cells. The model on the left shows the enzyme portion of E. coli Shiga-like toxin engineered to carry a small sequence of amino acids (in blue) that targets skin cancer cells. (Red indicates the active site.) The graph on the right shows the effect of this engineered RIP on human cancer cells of the skin (); breast () liver (); and prostate (). At what concentration of RIP did all of the different kinds of cells survive?arrow_forward
- RIPs as Cancer Drugs Researchers are taking a page from the structure-function relationship of RIPs in their quest for cancer treatments. The most toxic RIPs, remember, have one domain that interferes with ribosomes, and another that carries them into cells. Melissa Cheung and her colleagues incorporated a peptide that binds to skin cancer cells into the enzymatic part of an RIP, the E. coli Shiga-like toxin. The researchers created a new RIP that specifically kills skin cancer cells, which are notoriously resistant to established therapies. Some of their results are shown in FIGURE 9.17. FIGURE 9.17 Effect of an engineered RIP on cancer cells. The model on the left shows the enzyme portion of E. coli Shiga-like toxin engineered to carry a small sequence of amino acids (in blue) that targets skin cancer cells. (Red indicates the active site.) The graph on the right shows the effect of this engineered RIP on human cancer cells of the skin (); breast () liver (); and prostate (). Which cells survived best at 1 microgram per liter RIP?arrow_forwardRIPs as Cancer Drugs Researchers are taking a page from the structure-function relationship of RIPs in their quest for cancer treatments. The most toxic RIPs, remember, have one domain that interferes with ribosomes, and another that carries them into cells. Melissa Cheung and her colleagues incorporated a peptide that binds to skin cancer cells into the enzymatic part of an RIP, the E. coli Shiga-like toxin. The researchers created a new RIP that specifically kills skin cancer cells, which are notoriously resistant to established therapies. Some of their results are shown in FIGURE 9.17. FIGURE 9.17 Effect of an engineered RIP on cancer cells. The model on the left shows the enzyme portion of E. coli Shiga-like toxin engineered to carry a small sequence of amino acids (in blue) that targets skin cancer cells. (Red indicates the active site.) The graph on the right shows the effect of this engineered RIP on human cancer cells of the skin (); breast () liver (); and prostate (). Why are some of the data points linked by curved lines?arrow_forwardThe biological process shown in Figure 1 occurs in a eukaryotic cell’s nucleus. d) Name X and state how it functions in a protein synthesis. e) Give three differences between molecules X and Y.arrow_forward
- 1)You add a drug to cells that can pass through hydrophilic or hydrobic environments (e.g., membranes & cytosol). The drug specifically prevents the binding of KDEL (ER retention signal) to any other molecules. In the short term, what would happen to the synthesis and localization of translocon proteins? a. New complete translocon proteins would be made, but they would end up in the golgi apparatus. b. New complete translocon proteins would be made, but they would end up at the plasma membrane c. No new intact translocon proteins would be synthesized d. New complete translocon proteins would be made, but they would be secreted e. New complete translocon proteins would be made and localized normallyarrow_forward_______ side is oriented towards the RER (transition vesicles with newly synthesized protein arrive continuously from the ER)arrow_forwardYou have genetically modified a cell to have a thicker membrane than normal (25nm). To keepyour cells alive, you need to understand how diffusion of nutrients works. What is the flux ofglucose through the cell membrane given that: -The concentration of glucose in the media is 10mM -The concentration of glucose inside the cell is 2mM -The diffusivity of glucose is 6x10-10m2/sarrow_forward
- A typical human hepatocyte (liver cell), a widely studied eukaryotic cell, has a diameter of about 20 μm. Calculate the volume of both a prokaryotic and a eukaryotic cell. To appreciate the magnitude of the size difference between the two cell types, estimate how many bacterial cells would fit inside the liver cell. (Hint: Use the expression V = πr 2h for the volume of a cylinder and V = (4/3)π r 3 .arrow_forwardMost of the volume of T. namibiensis cells (The bacterium Thiomargarita namibiensis—at about 0.1 to 0.3 mm in diameter—is visible to the human eye.) is occupied by a large central vacuole. Why were scientists surprised to discover a bacterial cell containing a vacuole?arrow_forwardIn the absence of tension, MscL channel has an energy gap separating the closed and open states Eo = 50 kT. MscL opening is associated with a 20 nm2 in-plane protein expansion (DA). Using Excel plot its open probability (Po) as a function of membrane tension and paste the graph below. What will be the open probabilities of two MscL channels if one situates at the pole of the bacterial cell above, another in the middle?arrow_forward
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