Instruction:And put theCOMPLETE THE FOLLOWING REACTIONS: condensedE.g. REACTION OF AMMONIA WITH HCHO formula6HCHO + 4NH3 =(CH2)&N4 +Answer: 6H20 4.HCHO + KMNO4_(4a)__(4b)_+ K2SO4 +| MnO2t + H2O

Asked : To complete the given reaction

Answered: 4. HCHO + KMNO4 _(4a)_ (4b)_+ K2SO4 +|…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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125. A 27-year-old woman who is at 17 weeks' gestation has an increased serum concentration of a-fetoprotein. Ultrasonography should be performed to investigate for which of the following abnormalities in the fetus? A) Agenesis of the corpus callosum B) Anencephaly C) Congenital hydrocephalus OD) Holoprosencephaly E) Micrencephaly
3. The image below depicts 2,3-bisphosphoglycerate depicted in dark gray, and ß subunits are depicted in light gray. (BPG) bound to hemoglobin. The a subunits are BPG (a) Briefly explain how BPG regulates oxygen transport by hemoglobin and describe the critical chemical properties of BPG and its binding pocket.
2. The diagram to the right shows the change in the structure of the C-terminal portion of each of the ẞ-subu- nits of human hemoglobin (HbA) in the oxyHb to deox- yHb or R-to-T transition. The hydrogen bonding interac- tion of the C-terminal ẞHis 146 residue with the side chain of Asp94, highlighted by the red ellipse, has been shown to be responsible for a major portion of the proton uptake associated with the Bohr effect. Treatment of HbA with the enzyme carboxypeptidase A (CPA) results in loss of the C-terminal ẞHis 146 and ẞTyr145 residues of the ẞ- subunits. (a) ( ) Draw a Hill plot [log(Y/[1-Y]) vs. log(pO2), Y = fraction of heme groups occupied by O2] to compare the values of the Hill coefficient nн and the O2-binding affinity at pH 7.4 of normal HbA before and after treat- ment of with CPA. (b) (' ) How will the plot for CPA-digested HbA change at pH 7.2? (c) 1 Hi5146 HN- ✓ Low PK B-chain. CH2 CH-NH-CO-CH-NH- CH₂ Tyr145 он HbO2 or R state Туг145 CH-CH2- OH co NH CH CH₂ His…
111. Which of the following best describes the relative quantities of the subunits of hemoglobin in a healthy full-term newborn at birth? OA) a> ß>y> 5 O B) a>y> ß > d C) B >x>5 > y Y OD) B > Y D) B OE) y > ß>5 > α >y>a> d
`Expand the term VNTR?
2 When an oxygen molecule binds to the deoxyhemoglobin, multiple conformational changes happen that switch the hemoglobin from a T state to an R state. Describe the key conformational changes that happen that lead to the switch of Hemoblogin to an R state, starting with oxygen binding.
4. Ensuring adequate maternal intake of a spe- cific nutrient is especially important in reduc- ing the incidence of the congenital anomaly shown in the image. A deficiency of this nu- trient, when present in an adult, is associated with which of the following conditions? Subarachnoid space (A) Confabulation and anterograde amnesia (B) Diarrhea, dermatitis, and dementia (C) Megaloblastic anemia (D) Megaloblastic anemia with neurologic symptoms (E) Microcytic anemia (F) Polyneuritis and cardiac pathology (G) Swollen and bleeding gums, easy bruising, and poor wound healing HELR
Q5
1-9
2. It is known hemoglobinopathies, whi ch arise due to mutations in one of histidines a- or B- chains binding with the iron in the heme gro up.These mutations stabilize the iron in Fes form. Some drugs (eg. sulfonamides) or chemicals( eg.anilin) also can cause methemoglobinemia. Suggest, how change the properties of Hb in these cas es. For this:1)Describe the structure and function of Hb A as a transport protein. 2) Explain the role ofiron ions in act ive centers of Hb for the binding of O23) How many molecules of Oz can bind mutant Hb, if mutation occurs in a- subunits? 4) Why can ascorbic acid be used to tr eat of such patients.
52. During the development of a new vaccine, an investigator generates a mutant strain of bacteria that does not adhere to mucosal epithelia, Mutations in which of the following bacterial components or structures would most likely prevent bacterial adhesion? htba OA) Capsules OB) Flagella OC) Lipopolysaccharide OD) Lipoteichoic acid OE) Pili OF) Porins OG) Siderophores OH) Spores in 1thou (moon) Pili
16

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4. HCHO + KMNO4 _(4a)_ (4b)_+ K2SO4 +| MnO2l + H2O