Heme groups Study guides, Class notes & Summaries

What neurotransmitter stimulates release of epinephrine from adrenal medulla? - Answer- acetylcholine What is a metabolite if epinephrine that suggests epi-secreting carcinoma? What is another assoc symptom? - Answer- metanephrine; assoc with HBP What does acetazolamide (carbonic anhydrase ib) treat? - Answer- glaucoma, epilepsy, altitude sickness, congestive heart failure can cause dehydration Sickle cell anemia is due to... - Answer- pt mutation of Glu -> val What is a major ne...

What is true about the breakdown of red blood cells? - ANSWER >> Iron is carried through the plasma by transferrin >> Bilirubin is excreted in the urine >> Bilirubin is excreted in the bile >> Iron is carried through the plasma by transferrin Adult hemoglobin is composed of what components? - ANSWER >> four heme groups >> two beta subunits >> two alpha subunits Infant hemoglobin is composed of what components? - ANSWER >> four heme groups ...

ligand - Is the word for a drug or a bio molecule a molecule that is reversibly bound to a protein, examples oxygen, endogenous neurotransmitters, hormones, drug molecules Binding site - A discrete portion of the protein that is complementary to the ligand in: - Shape and size - Charge distribution - Hydrophobic and hydrophilic regions ***Is involved in specific interaction, certain structural features must be present on the ligand for binding Induced fit - A complementary conformationa...

WGU C624 Biochemistry Module 3, Exam Questions and answers, 100% Accurate. VERIFIED. Describe the functions of hemoglobin and myoglobin. - -Hemoglobin transports oxygen, Myoglobin stores oxygen. The correct number of subunits, heme groups, iron and oxygen that bind to hemoglobin versus myoglobin. - -Hemoglobin has: 4 subunits 4 heme groups 4 iron molecules binds 4 molecules of oxygen. Myoglobin has: 1 subunit 1 heme group 1 iron molecule binds 1 molecule of oxygen. Cooperat...

UNIT 1 - Quizzes and Exam, UNE medical biochemistry Unit 1 Test Correctly Answered To Score A+ Which of the following amino acid would not be commonly found in the middle of a an α-helical domain? Proline. It is considered a 'helix breaker' and would not be found in an alpha helix; all other residues are nonpolar hydrophobic and could reside in a transmemebrane domain. Changes in the physiological variables listed below can alter the affinity of hemoglobin for oxygen. Which of the fol...

Describe the functions of hemoglobin and myoglobin. - -Hemoglobin transports oxygen, Myoglobin stores oxygen. The correct number of subunits, heme groups, iron and oxygen that bind to hemoglobin versus myoglobin. - -Hemoglobin has: 4 subunits 4 heme groups 4 iron molecules binds 4 molecules of oxygen. Myoglobin has: 1 subunit 1 heme group 1 iron molecule binds 1 molecule of oxygen.

BIOCHEM ACS STUDY GUIDE QUESTIONS AND ANSWERS 2024. Each of the following subcellular structures contains DNA EXCEPT A. the nucleus. B. ribosomes. C. chloroplasts. D. mitochondria. - ANSWER- B In plant and animal cells, the three-dimensional integrity of the cell is maintained, in part, by an internal network of filaments called A. the cell wall. B. the Golgi apparatus. C. the cytoskeleton. D. the endoplasmic reticulum. - ANSWER- C Of the following, which are prokaryotes? A. viruses...

NGN ATI RN Pediatrics Exam 2023 A V1 | Questions and Verified Answers| 100% Correct| Grade A Q: A nurse is caring for a school-age child who is receiving chemotherapy and is severely immunocompromised. Which of the following actions should the nurse take? Answer: Screen the child's visitors for indications of infection. Rationale: A child who is severely immunocompromised is unable to adequately respond to infectious organisms, resulting in the potential for overwhelming infection. ...

BCH Final Exam Review Questions & Answers 2023/2024 Which of the following statements regarding the allosteric mechanism of hemoglobin is INCORRECT? - ANSWER-Answer: ? Other choices: - The MWC (or Symmetry) model better describes Hemoglobin allostery than the KNF (or Sequential) model. - In the T state, the deoxygenated heme unit assumes a domed conformation; The R state occurs upon oxygen binding, which flattens the heme and forces an 8° rotation of the distal His. - While the prese...

Changes in the physiological variables listed below can alter the affinity of hemoglobin for oxygen. Which of the following will lower the affinity of hemoglobin for oxygen? a) decrease in protons b) increase in 2,3 bisphosphoglycerate (BPG) c) increase in pH d) decrease in CO2 - Answer Increase in 2,3 bisphosphoglycerate (BPG) Domains are common structural elements that retain a particular function within the protein. Which of the following is an example of a protein domain? a) a prosth...