Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134298924
Author: Marieb
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 2SAQ
Some energy is lost in energy energy conversion. Explain the meaning of this statement. (Direct your response to answering the question: Is it really lost? If not, what then?)
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Energy in ATP is used to power skeletal muscle contraction. This is an example of what type of energy conversion? a. chemical energy to mechanical energy b. light energy to mechanical energy c. chemical energy to light energy d. electrical energy to chemical energy.
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In glycolysis and the Krebs cycle, electrons are removed from glucose and taken up by molecules + like NAD In such a reaction, glucose is being ______ and NAD is being ____
Chapter 2 Solutions
Anatomy & Physiology (6th Edition)
Ch. 2.1 - What form of energy is found in the food we eat?Ch. 2.1 - What form of energy is used to transmit messages...Ch. 2.1 - What type of energy is available when we are...Ch. 2.2 - What two elements besides H and N make up the bulk...Ch. 2.2 - An element has a mass of 207 and has 125 neutrons...Ch. 2.2 - How do the terms atomic mass and atomic weight...Ch. 2.3 - What is the meaning of the term molecule?Ch. 2.3 - Why is sodium chloride (NaCl) considered a...Ch. 2.3 - Blood contains a liquid component and living...Ch. 2.4 - What kinds of bonds form between water molecules?
Ch. 2.4 - Oxygen (8O) and argon (18A) are both gases. Oxygen...Ch. 2.4 - Assume imaginary compound XY has a polar covalent...Ch. 2.5 - Which reaction type-synthesis, decomposition, or...Ch. 2.5 - Why are many reactions that occur in living...Ch. 2.5 - What specific name is given to decomposition...Ch. 2.6 - Salts are electrolytes. What does that mean?Ch. 2.6 - Which ion is responsible for increased acidity?Ch. 2.6 - To minimize the sharp pH shift that occurs when a...Ch. 2.6 - Prob. 19CYUCh. 2.7 - Prob. 20CYUCh. 2.8 - What are the monomers of carbohydrates called?...Ch. 2.8 - What is the animal form of stored carbohydrate...Ch. 2.9 - Prob. 23CYUCh. 2.10 - What does the name amino acid tell you about the...Ch. 2.10 - What is the primary structure of proteins?Ch. 2.10 - What are the two types of secondary structure in...Ch. 2.10 - How do enzymes reduce the amount of activation...Ch. 2.11 - How do DNA and RNA differ in the bases and sugars...Ch. 2.11 - What are two important roles of DNA?Ch. 2.12 - Glucose is an energy-rich molecule. So why do body...Ch. 2.12 - 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. 8SAQCh. 2 - Differentiate clearly between primary, secondary,...Ch. 2 - Prob. 10SAQCh. 2 - Describe the mechanism of enzyme action.Ch. 2 - Explain why, if you pour water into a glass very...
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- Cells expend energy on what three categories of activities?arrow_forwardEnergy is stored long-term in the bonds of _____ and used short-term to perform work from a(n)_____molecule. a. ATP : glucose b. an anabolic molecule : catabolic molecule c. glucose: ATP d. a catabolic molecule : anabolic moleculearrow_forwardWhich of the following statements is not correct? a. Energy cannot be created or destroyed. b. Energy cannot change from one form to another. c. Energy tends to disperse spontaneously. d. Energy can be transferred.arrow_forward
- During glycolysis, is all of the energy of glucose converted to energy in ATP? Why do compost piles become warm?arrow_forwardWhich of the following statement about ATP formation in Glycolysis is True? a. Four ATP molecules are used in the Glycolysis of one molecule of Glucose b. Three ATP molecules are formed in the Glycolysis of one molecule of Glucose c. Two ATP molecules are used in the Glycolysis of one molecule of Glucose d. Two ATP molecules are formed in the Glycolysis of one molecule of Glucosearrow_forwardThe energetic equivalent of two molecules of ATP is used to activate an amino acid, yet only one molecule of ATP is used. Explain.arrow_forward
- Which electron carrier would have the greatest negative impact on ATP production during oxidative phosphorylation if its production was inhibited? answer choices A.) Water B.) FADH2 C.) Oxygen D.) NADHarrow_forwardSelect the correct answer to fill in the blank. If glucose was no longer available, the electron transport chain would be (__________) and would not regenerate NAD+ and FAD+ nor supply electrons for the synthesis of ATP. a. inactive b. activearrow_forwardWhich of the following food molecules would generate the most ATP molecules, assuming that glycolysis, the Krebs cycle, and the electron transport chain were all functioning and that the foods were consumed in equal amounts: carbohydrates, proteins, or fats? Explain your answer.arrow_forward
- Select the best answer or answers from the choices given: Which of the following reactions would liberate the most energy? (a) complete oxidation of a molecule of sucrose to CO2 and water, (b) conversion of a molecule of ADP to ATP, (c) respiration of a molecule of glucose to lactic acid, (d) conversion of a molecule of glucose to carbon dioxide and water.arrow_forwardWhat would the consequences be if the cells of your body could convert the energy in food substances with only 20% efficiency? Would your body—as it is presently constructed—work just fine, overheat, or freeze?arrow_forwardWhich of the following reactions is the most exergonic? a Conversion of PEP to Pyruvate b Conversion of Glucose-6-phosphate to Glucose c All of the reactions are equally exergonic. d Hydrolysis of ATParrow_forward
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