BIOLOGY DUAL ENROLLMENT VERSION
12th Edition
ISBN: 9780136681311
Author: Urry
Publisher: PEARSON
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Chapter 41.4, Problem 3CC
WHAT IF? → "Lactose-intolerant" people have a shortage of lactase, the enzyme that breaks down lactose in milk. As a result, they sometimes develop cramps, bloating, or diarrhea after consuming dairy products. Suppose such a person ate yogurt that contains bacteria that produce lactase. Why would eating yogurt likely provide at best only temporary relief of the symptoms?
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B) Read the situations below and indicate which of the four methods of enzyme regulation is
occurring for each.
a) The energy-carrying molecule ATP is made by the enzyme ATP synthase. Muscle cells use a
lot of energy and also have higher amounts of the ATP synthase enzyme than many ouier cem
types.
General mechanism of enzyme regulation:
/1
b) Prostaglandins are messenger molecules involved in the inflammatory response, as well as th
perception of pain. They are synthesized from polyunsaturated fatty acid substrates by an enzyn
called cyclo-oxygenase. "Ibuprofen" is the active ingredient in a variety of anti-inflammatory
medications such as Motrin® and Advil®. It reduces pain and swelling by binding to a
hydrophobic channel in the active site of cyclo-oxygenase, blocking the polyunsaturated fatty
acids from binding to the enzyme, and therefore stopping production of prostaglandins.
General mechanism of enzyme regulation:
a) In point form, describe the steps by which ATP is produced…
3) Read the situations below and indicate which of the four methods of enzyme regulation is
occurring for each.
a) The energy-carrying molecule ATP is made by the enzyme ATP synthase. Muscle cells use a
lot of energy and also have higher amounts of the ATP synthase enzyme than many other cell
types.
General mechanism of enzyme regulation: S
b) Prostaglandins are messenger molecules involved in the inflammatory response, as well as the
perception of pain. They are synthesized from polyunsaturated fatty acid substrates by an enzym
called cyclo-oxygenase. "Ibuprofen" is the active ingredient in a variety of anti-inflammatory
medications such as Motrin® and Advil®. It reduces pain and swelling by binding to a
hydrophobic channel in the active site of cyclo-oxygenase, blocking the polyunsaturated fatty
acids from binding to the enzyme, and therefore stopping production of prostaglandins.
General mechanism of enzyme regulation:
pls help
Chapter 41 Solutions
BIOLOGY DUAL ENROLLMENT VERSION
Ch. 41.1 - An animal requires 20 amino acids to make...Ch. 41.1 - Prob. 2CCCh. 41.1 - WHAT IF? If a zoo animal eating ample food shows...Ch. 41.2 - Prob. 1CCCh. 41.2 - In what sense are nutrients from a recently...Ch. 41.2 - Prob. 3CCCh. 41.3 - Explain why a proton pump inhibitor, such as the...Ch. 41.3 - Prob. 2CCCh. 41.3 - Prob. 3CCCh. 41.4 - Prob. 1CC
Ch. 41.4 - What features of a mammal's digestive system make...Ch. 41.4 - WHAT IF? "Lactose-intolerant" people have a...Ch. 41.5 - Explain how people can become obese even if their...Ch. 41.5 - WHAT IF? Suppose you were studying two groups of...Ch. 41.5 - Prob. 3CCCh. 41 - Prob. 41.1CRCh. 41 - Propose an artificial diet that would eliminate...Ch. 41 - Prob. 41.3CRCh. 41 - How does human anatomy indicate that our primate...Ch. 41 - Prob. 41.5CRCh. 41 - Fat digestion yields fatty acids and glycerol....Ch. 41 - The mammalian trachea and esophagus both connect...Ch. 41 - Prob. 3TYUCh. 41 - Prob. 4TYUCh. 41 - Prob. 5TYUCh. 41 - After surgical removal of the gallbladder, a...Ch. 41 - If you were to jog 1 km a few hours after lunch,...Ch. 41 - DRAW IT Create a flowchart to summarize the events...Ch. 41 - EVOLUTION CONNECTION Lizards and snakes cannot...Ch. 41 - SCIENTIFIC INQUIRY In human populations of...Ch. 41 - WRITE ABOUT A THEME: ORGANIZATION Hair is largely...Ch. 41 - SYNTHESIZE YOUR KNOWLEDGE Hummingbirds are well...
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