
Biochemistry
8th Edition
ISBN: 9781285429106
Author: Campbell, Mary K., FARRELL, Shawn O.
Publisher: Cengage Learning,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 4, Problem 12RE
Interpretation Introduction
Interpretation:
The definition of a reverse turn. Also, the two types of reverse turn are to be specified.
Concept introduction:
A protein is a polypeptide chain where amino acids are linked with a peptide bond. It forms different structures or conformations, because of its large size.
One of the structures is known as a secondary structure, which is of two types, namely, α-helix and β-pleated sheet.
Expert Solution & Answer

Trending nowThis is a popular solution!

Students have asked these similar questions
Answer
13. Which one is the
major organic product of
the following sequence
of reactions?
A
OH
(CH3)2CHCH2COOH
SOCI2 CH3OH
1. CH3MgBr
2. H₂O, H+
B
C
D
OH
E
OH
14. Which one is the major organic product of the following sequence of reactions?
(CH3)2CH-COCI
CH3OH
1. DIBALH, -78°C
1. PhCH2MgBr
?
2. H2O, HCI
2. H2O, HCI
OH
OMe
A
Ph
B
Ph
OH
Ph
C
OMe
Ph
D
E
OH
.Ph
Chapter 4 Solutions
Biochemistry
Ch. 4 - RECALL Match the following statements about...Ch. 4 - RECALL Define denaturation in terms of the effects...Ch. 4 - RECALL What is the nature of random structure in...Ch. 4 - REFLECT AND APPLY Suggest an explanation for the...Ch. 4 - REFLECT AND APPLY Rationalize the following...Ch. 4 - REFLECT AND APPLY Glycine is a highly conserved...Ch. 4 - REFLECT AND APPLY A mutation that changes an...Ch. 4 - REFLECT AND APPLY A biochemistry student...Ch. 4 - RECALL List three major differences between...Ch. 4 - RECALL What are Ramachandran angles?
Ch. 4 - Prob. 11RECh. 4 - Prob. 12RECh. 4 - RECALL List some of the differences between the...Ch. 4 - RECALL List some of the possible combinations of...Ch. 4 - RECALL Why is proline frequently encountered at...Ch. 4 - RECALL Why must glycine be found at regular...Ch. 4 - REFLECT AND APPLY You hear the comment that the...Ch. 4 - REFLECT AND APPLY Woolen clothing shrinks when...Ch. 4 - RECALL Draw two hydrogen bonds, one that is part...Ch. 4 - RECALL Draw a possible electrostatic interaction...Ch. 4 - RECALL Draw a disulfide bridge between two...Ch. 4 - RECALL Draw a region of a polypeptide chain...Ch. 4 - REFLECT AND APPLY The terms configuration and...Ch. 4 - REFLECT AND APPLY Theoretically, a protein could...Ch. 4 - REFLECT AND APPLY What is the highest level of...Ch. 4 - RECALL List two similarities and two differences...Ch. 4 - RECALL What are the two critical amino acids near...Ch. 4 - RECALL What is the highest level of organization...Ch. 4 - RECALL Suggest a way in which the difference...Ch. 4 - RECALL Describe the Bohr effect.Ch. 4 - RECALL Describe the effect of 2,...Ch. 4 - RECALL How does the oxygen-binding curve of fetal...Ch. 4 - RECALL What is the critical amino acid difference...Ch. 4 - REFLECT AND APPLY In oxygenated hemoglobin,...Ch. 4 - REFLECT AND APPLY You are studying with a friend...Ch. 4 - REFLECT AND APPLY How does the difference between...Ch. 4 - REFLECT AND APPLY Suggest a reason for the...Ch. 4 - Prob. 38RECh. 4 - REFLECT AND APPLY Why is fetal Hb essential for...Ch. 4 - BIOCHEMICAL CONNECTIONS Why might you expect to...Ch. 4 - REFLECT AND APPLY When deoxyhemoglobin was first...Ch. 4 - BIOCHEMICAL CONNECTIONS What is the direct cause...Ch. 4 - BIOCHEMICAL CONNECTIONS What is the effect of the...Ch. 4 - BIOCHEMICAL CONNECTIONS Why do scientists believe...Ch. 4 - Prob. 45RECh. 4 - BIOCHEMICAL CONNECTIONS What is BCL11A and how is...Ch. 4 - BIOCHEMICAL CONNECTIONS Given the purpose of...Ch. 4 - Prob. 48RECh. 4 - REFLECT AND APPLY Comment on the energetics of...Ch. 4 - RECALL What is a chaperone?Ch. 4 - Prob. 52RECh. 4 - Prob. 53RECh. 4 - Prob. 54RECh. 4 - RECALL What are some diseases caused by misfolded...Ch. 4 - RECALL What causes protein aggregates to form?Ch. 4 - Prob. 57RECh. 4 - Prob. 58RECh. 4 - Prob. 59RECh. 4 - BIOCHEMICAL CONNECTIONS What aspects of the...Ch. 4 - Prob. 61RECh. 4 - Prob. 62RECh. 4 - Prob. 63RECh. 4 - Prob. 64RECh. 4 - Prob. 65RECh. 4 - Prob. 66RE
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.Similar questions
- 6. Which one is the major organic product obtained from the following reaction? CO₂Me 1. LiAlH4 2. H₂O CH₂OH CH₂OCH3 5555 HO A B HO C HO D CH₂OH E ?arrow_forward1. (10 points) Pulverized coal pellets, which may be ° approximated as carbon spheres of radius r = 1 mm, are burned in a pure oxygen atmosphere at 1450 K and 1 atm. Oxygen is transferred to the particle surface by diffusion, where it is consumed in the reaction C + O₂ →> CO₂. The reaction rate is first order and of the form No2 = k₁C₁₂(r), where k₁ = 0.1 m/s. Neglecting changes in r, determine the steady-state O₂ molar consumption rate in kmol/s. At 1450 K, the binary diffusion coefficient for O2 and CO2 is 1.71 x 10ª m²/s.arrow_forward2. (20 points) Consider combustion of hydrogen gas in a mixture of hydrogen and oxygen adjacent to the metal wall of a combustion chamber. Combustion occurs at constant temperature and pressure according to the chemical reaction 2H₂+ O₂→ 2H₂O. Measurements under steady-state conditions at 10 mm from the wall indicate that the molar concentrations of hydrogen, oxygen, and water vapor are 0.10, 0.10, and 0.20 kmol/m³, respectively. The generation rate of water vapor is 0.96x102 kmol/m³s throughout the region of interest. The binary diffusion coefficient for each of the species (H, O̟, and H₂O) in the remaining species is 0.6 X 10-5 m²/s. (a) Determine an expression for and make a qualitative plot of C as a function of distance from the wall. H2 (b) Determine the value of C2 at the wall. H2 (c) On the same coordinates used in part (a), sketch curves for the concentrations of oxygen and water vapor. This will require you to calculate Co, and C. 02 H20 (d) What is the molar flux of water…arrow_forward
- 4. (15 points) Consider a spherical organism of radius ro within which respiration occurs at a uniform volumetric rate of That is, oxygen (species A) consumption is governed by a first- order reaction, homogeneous chemical reaction. a. If a molar concentration of CA(ro) = CA,o is maintained at the surface of the organism, obtain an expression for the radial distribution of oxygen, CA(r), within the organism. Hint: To simplify solution of the species diffusion equation, invoke the transformation y = rCA. b. Obtain an expression for the rate of oxygen consumption within the organism. c. Consider an organism of radius ro = 0.10 mm and a diffusion coefficient of DAB = 108 m2/s. If CA, o = 5 x105 kmol/m3 and k1 20 s1, estimate the corresponding value of the molar concentration at the center of the organism. What is the rate of oxygen consumption by the organism?arrow_forward3. (15 points) Living cells homogeneously distributed (immobilized) with an agarose gel require glucose to survive. An important aspect of the biochemical system design is the effective diffusion coefficient of glucose (A) into the cell- immobilized gel. Consider the experiment shows below where a slab of the cell-immobilized gel of 1.0cm thickness is placed within a well-mixed aqueous solution of glucose maintained at a concentration of 50 mmol/L. The glucose consumption within the cell-immobilized gel proceeds by a zero-order process given by R₁ = -0.05 mmol/(L min). The solubilities of glucose in both the water and the gel are the same; that is, the concentration of the glucose on the water side of the water-gel interface is equal to the concentration of the glucose on the gel side of the water gel interface. A syringe is mounted at the center of the gel carefully excises a tiny sample of the gel for glucose analysis. A Well mixed solution Constant concentration 50nmol/L Living…arrow_forwardTwo tetrapeptides were isolated from a possum's sweat glands. These peptides were sequenced using Edman degradation and the following 2 sequences were obtained: Gly-Asp-Ala-Leu Gly-Asp-Asp-Leu Can you please help show the titration curve for both of these peptides and calculate the PI?arrow_forward
- Two tetrapeptides were isolated from a possum's sweat glands. These peptides were sequenced using Edman degradation and the following 2 sequences were obtained: Gly-Asp-Ala-Leu Gly-Asp-Asp-Leu What is the structure of the PTH derivative produced during the last round of amino acid sequencing?arrow_forwardWhat is the primary sequence of this undecapeptide? Also, if x-ray crystallography shows a highly stable hairpin turn within the polypeptide, what about the primary sequence explains this structural feature?arrow_forwardDraw the product of this reaction. Ignore inorganic byproducts. H H ⚫OH HO- -H H- -OH H- -OH CH2OH Ag*, NH4OH, H2O Draw Fischer Projectionarrow_forward
- Draw the product of this reaction. Ignore inorganic byproducts. H₂O -OH H ⚫OH HO H HO- CH2OH Cu2+ Draw Fischer Projectionarrow_forwardDraw the product of this reaction. Ignore inorganic byproducts. H、 H -OH H ⚫OH H -OH CH2OH Fehlings' solution ⑤ Draw Fischer Projectionarrow_forwardDraw the product of this reaction. Ignore inorganic byproducts. HO C=0 H ⚫OH H ⚫OH HO- H HO H CH2OH Tollens' solution Draw Fischer Projectionarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- BiochemistryBiochemistryISBN:9781305961135Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougalPublisher:Cengage Learning

Biochemistry
Biochemistry
ISBN:9781305961135
Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher:Cengage Learning
Biomolecules - Protein - Amino acids; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=ySNVPDHJ0ek;License: Standard YouTube License, CC-BY