Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Chapter 2, Problem 13CYU
Which reaction type-synthesis, decomposition, or exchange-occurs when fats are digested in your small intestine?
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Please help with question. thank you
You are studying the expression of the lac operon. You have isolated mutants as described below. In the presence of glucose, explain/describe what would happen, for each mutant, to the expression of the lac operon when you add lactose AND what would happen when the bacteria has used up all of the lactose (if the mutant is able to use lactose).5. Mutations in the lac operator that strengthen the binding of the lac repressor 200 fold
6. Mutations in the promoter that prevent binding of RNA polymerase
7. Mutations in CRP/CAP protein that prevent binding of cAMP8. Mutations in sigma factor that prevent binding of sigma to core RNA polymerase
Molecular Biology
Please help and there is an attached image. Thank you.
A bacteria has a gene whose protein/enzyme product is involved with the synthesis of a lipid necessary for the synthesis of the cell membrane. Expression of this gene requires the binding of a protein (called ACT) to a control sequence (called INC) next to the promoter.
A. Is the expression/regulation of this gene an example of induction or repression?Please explain:B. Is this expression/regulation an example of positive or negative control?C. When the lipid is supplied in the media, the expression of the enzyme is turned off.Describe one likely mechanism for how this “turn off” is accomplished.
Chapter 2 Solutions
Anatomy & Physiology
Ch. 2 - What form of energy is found in the food we eat?Ch. 2 - What form of energy is used to transmit messages...Ch. 2 - What type of energy is available when we are...Ch. 2 - What two elements besides H and N make up the bulk...Ch. 2 - An element has a mass of 207 and has 125 neutrons...Ch. 2 - How do the terms atomic mass and atomic weight...Ch. 2 - What is the meaning of the term molecule?Ch. 2 - Why is sodium chloride (NaCl) considered a...Ch. 2 - Blood contains a liquid component and living...Ch. 2 - What kinds of bonds form between water molecules?
Ch. 2 - Oxygen (8O) and argon (18A) are both gases. Oxygen...Ch. 2 - Assume imaginary compound XY has a polar covalent...Ch. 2 - Which reaction type-synthesis, decomposition, or...Ch. 2 - Why are many reactions that occur in living...Ch. 2 - What specific name is given to decomposition...Ch. 2 - Water makes up 6080% of living matter. What...Ch. 2 - Salts are electrolytes. What does that mean?Ch. 2 - Which ion is responsible for increased acidity?Ch. 2 - To minimize the sharp pH shift that occurs when a...Ch. 2 - Prob. 23CYUCh. 2 - What are the monomers of carbohydrates called?...Ch. 2 - What is the animal form of stored carbohydrate...Ch. 2 - Prob. 22CYUCh. 2 - What does the name amino acid tell you about the...Ch. 2 - What is the primary structure of proteins?Ch. 2 - What are the two types of secondary structure in...Ch. 2 - What is the main event that molecular chaperones...Ch. 2 - How do enzymes reduce the amount of activation...Ch. 2 - How do DNA and RNA differ in the bases and sugars...Ch. 2 - What are two important roles of DNA?Ch. 2 - Glucose is an energy-rich molecule. So why do body...Ch. 2 - What change occurs in ATP when it releases energy?Ch. 2 - Which of the following forms of energy is the...Ch. 2 - All of the following are examples of the four...Ch. 2 - The mass number of an atom is (a) equal to the...Ch. 2 - A deficiency in this element can be expected to...Ch. 2 - Which set of terms best describes a proton? (a)...Ch. 2 - The subatomic particles responsible for the...Ch. 2 - Prob. 7MCCh. 2 - Which of the following does not describe a...Ch. 2 - In a beaker of water, the water-water bonds can...Ch. 2 - When a pair of electrons is shared between two...Ch. 2 - Molecules formed when electrons are shared...Ch. 2 - Which of the following covalently bonded molecules...Ch. 2 - Prob. 13MCCh. 2 - Factors that accelerate the rate of chemical...Ch. 2 - Prob. 15MCCh. 2 - Waters importance to living systems reflects (a)...Ch. 2 - Acids (a) release hydroxyl ions when dissolved in...Ch. 2 - Prob. 18MCCh. 2 - Prob. 19MCCh. 2 - A chemical has an amine group and an organic acid...Ch. 2 - Prob. 21MCCh. 2 - Enzymes are organic catalysts that (a) alter the...Ch. 2 - Define or describe energy, and explain the...Ch. 2 - Some energy is lost in energy energy conversion....Ch. 2 - Provide the atomic symbol for each of the...Ch. 2 - Consider the following information about three...Ch. 2 - How many moles of aspirin, C9H8O4, are in a bottle...Ch. 2 - Given the following types of atoms, decide which...Ch. 2 - What are hydrogen bonds and how are they important...Ch. 2 - Prob. 30SAQCh. 2 - Differentiate clearly between primary, secondary,...Ch. 2 - Prob. 32SAQCh. 2 - Describe the mechanism of enzyme action.Ch. 2 - Explain the importance of molecular chaperones.Ch. 2 - Explain why, if you pour water into a glass very...
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