BIOLOGY 12TH ED (LL) W/ CONNECT
12th Edition
ISBN: 9781264898091
Author: Raven
Publisher: MCG
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Textbook Question
Chapter 46, Problem 4U
Which of these pairings is incorrect?
a. Fat transport/lymphatic system
b. Glucose transport/lymphatic system
c. Amino acid transport/circulatory system
d. All of these pairings are correct.
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What will be the effect of the following changes to the protein structure of hemoglobin and its function?
A. Replacement of the proximal histidine residue at the 8thposition of the F helix by asparagine.
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People suffering with sickle cell anemia have a structural defect in hemoglobin (HB). The major reason for this structural change is mutation of glutamic acid to valine. This leads to
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Chapter 46 Solutions
BIOLOGY 12TH ED (LL) W/ CONNECT
Ch. 46.1 - Prob. 1LOCh. 46.1 - Prob. 2LOCh. 46.1 - Prob. 3LOCh. 46.2 - Prob. 1LOCh. 46.2 - Prob. 2LOCh. 46.3 - Prob. 1LOCh. 46.3 - Prob. 2LOCh. 46.4 - Prob. 1LOCh. 46.4 - Explain how absorbed nutrients move into the blood...Ch. 46.5 - Prob. 1LO
Ch. 46.5 - Prob. 2LOCh. 46.5 - Prob. 3LOCh. 46.6 - Prob. 1LOCh. 46.6 - Prob. 2LOCh. 46.7 - Prob. 1LOCh. 46.7 - Prob. 2LOCh. 46.7 - Prob. 3LOCh. 46.8 - Prob. 1LOCh. 46.8 - Describe how rumination works.Ch. 46.8 - Prob. 3LOCh. 46 - Prob. 1DACh. 46 - If you constructed a phylogeny using molecular...Ch. 46 - Prob. 1IQCh. 46 - Prob. 2IQCh. 46 - Prob. 3IQCh. 46 - Prob. 4IQCh. 46 - How is the digestion of fats different from that...Ch. 46 - Although the stomach is normally thought of as the...Ch. 46 - After being absorbed through the intestinal...Ch. 46 - Which of these pairings is incorrect? a. Fat...Ch. 46 - Intestinal microorganisms aid digestion and...Ch. 46 - Prob. 6UCh. 46 - Which of the following represents the action of...Ch. 46 - Prob. 1ACh. 46 - The primary function of the large intestine is to...Ch. 46 - Inactive forms of some molecules are secreted a....Ch. 46 - Prob. 4ACh. 46 - Many birds possess crops, although few mammals do....Ch. 46 - Suppose that you wanted to develop a new treatment...Ch. 46 - How could a drop in plasma proteins and a decrease...Ch. 46 - Unlike many cases of convergence (see section...Ch. 46 - Prob. 5S
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- How does hemoglobin bind O2 cooperatively? A. The binding of one molecule of O2 to one subunit of hemoglobin enhances the assembly of other subunits to form a complete hemoglobin protein. B. The binding of one molecule of O2 to one hemoglobin protein enhances the binding of a molecule of O2 to a different hemoglobin protein. C. The binding of one molecule of O2 to one subunit of hemoglobin enhances the affinity of the same subunit for more molecules of O2. D. The binding of one molecule of O2 to one subunit of hemoglobin enhances the affinity of other subunits for O2.arrow_forwardHemoglobin (Hb) is a blood protein that is responsible for transporting oxygen. It can exist in the protonated form as HbH*. The binding of oxygen can be represented by the simplified equation HbH+ + 02 > ABO2 + Ht A. Excessive vomiting may lead to metabolic alkalosis, in which [H2O*] in blood decreases. How does this condition affect the ability of Hb to transport O2? B.Diabetes mellitus may lead to metabolic acidosis, in which [HgO*] in blood How does this condition affect the ability of Hb to transport O?arrow_forwardWhich statement is true for the heme group present myoglobin: a. Oxygen binding to heme group is influenced by serine residues within proteins’ sequences. b. Oxygen binding to heme can become irreversible as a result of interaction with certain protein residues. c. Oxygen reversibly binds to the heme prostetic group and this binding is influenced by histidine residues within the myoglobin sequence. d. The heme group dissociates from Mb after oxygen is released.arrow_forward
- Which type of transporter chemically alters glucose during passage across the membrane?. a. ABC transporter b. Glucose phosphotransferase system c. hexokinasearrow_forwardWhich of the following is incorrect about membrane transport systems? a. Glucose transport in red blood cells is a uniport system b. The Na+/K+ ATPase is an antiport system c. The H+/K+ ATPase is an active transport system d. The chloride-bicarbonate exchanger in erythrocytes is a uniport systemarrow_forwardIf a membrane protein in an intact erythrocyte reacts with a membrane-impermeable reagent, what can you conclude about the protein? A. It is a transmembrane protein. B. It is a peripheral membrane protein. C. At least one domain of the protein is located on the outer face of the membrane. D. It is not a plasma membrane protein.arrow_forward
- Glucose can be transported into cells with a glucose/sodium symporter. If the extracellular concentration of sodium is always in excess to that of glucose, which of these manipulations would MOST increase the rate of glucose transport into a cell? A. increase in the extracellular concentration of sodium B. increase in the intracellular concentration of sodium C. increase in the extracellular concentration of glucose D. increase in the intracellular concentration of glucosearrow_forwardWhich of the following statements is incorrect?arrow_forwardMyoglobin ... A. has higher affinity for O2 than hemoglobin does. B. consists of four polypeptide chains, just as hemoglobin does. C. has a lower affinity for O2 than hemoglobin does. D. is found in the interstitial fluids, in contrast to hemoglobin that is found in red blood cells. E. can bind four O2 molecules at once.arrow_forward
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