Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Chapter 2, Problem 20MC
A chemical has an
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Students have asked these similar questions
What do all fats have in common?
A) they all have identical hydrocarbon chains
B) they are acidic
C) they are all unsaturated molecules
D) they are all formed from glycerol
E) all of the above
(I know it is not A, because I got it wrong. Need to know the correct answer for study purposes. Thanks in advance!)
Polyunsaturated fatty acids
a). are solid at room temperature
b). have carbon-carbon double bonds
c). are polar
d). have high melting points
How many amino acids and peptide bonds does a tetrapeptide have?
A) four amino acids and three peptide bonds
B) four amino acids and four peptide bonds
C) three amino acids and four peptide bonds
D) four amino acids and two peptide bonds
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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- As the smallest unit of lipids is a glycerol, whereas, the amino acid is the smallest unit for protein, there are two questions (1) identify which molecule connects together two amino acids and (2) explain if there is a need to connect two different lipids, explain why.arrow_forwardAmino acids show unusual chemical behavior especially because they A) are all found in living organisms. B) contain the amide functional group. C) are chiral. D) contain both an acidic and a basic functional group on the same molecule. E) contain the elements carbon, hydrogen, oxygen and nitrogen.arrow_forwardWhich of the following statements is TRUE? A) Monosaccharides are the building blocks of polypeptides.B) Nucleotides are the building blocks of saccharides.C) Carbohydrates are water soluble and responsible for short term energy storage.D) Amino acids are made of peptides.E) Fatty acids are responsible for DNA replicationarrow_forward
- A triglyceride consists of (a) glycerol plus three fatty acids, (b) a sugar-phosphate backbone to which two amino groups are attached, (c) two to several hexoses, (d) amino acids that have been thoroughly saturated with hydrogen.arrow_forwardWhich of the following is a carbohydrate? a). cholesterol c). wax d). amylopectin e). prostaglandinarrow_forwardThe lipid(s) used as the basis of vitamin D, sex hormones, and bile salts is/are (a) triglycerides, (b) cholesterol, (c) phospholipids, (d) prostaglandinarrow_forward
- Myristic, lauric and palmitic acids are fatty acids of, respectively: A) 13, 14, 15 carbons B) 12, 14, 16 carbons C) 14, 18, 20 carbons D) 14, 12, 16 carbons E) 16, 14, 12 carbonsarrow_forwardWhich of the following is NOT a carbohydrate? 1) polysaccharide 2) monosaccharide 3) glucose 4) triglyceride 5) starcharrow_forwardLipids are a class of macromolecules that can be found in which of the following places? a) lipids can be found in all of these places b) in hormones such as testosterone c) in the plasma membrane of cells d) surround organsarrow_forward
- Several substances found in nature or within living organisms themselves are essential to the life. Thus, for each of the following substances, please give a concrete example briefly describing how their properties make them essential to life. A) Acid (pH below 7) B) Lipidarrow_forwardWhich of the following is NOT a function of carbohydrates? A Structural support B) Speeds up chemical reactions C) Energy source D) Acts as cell receptorsarrow_forward(a) What type of linkage is present in disaccharides?(b) Write one source and deficiency disease of vitamin B12.(c) Write the difference between DNA and RNA.arrow_forward
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