Alpha helices Study guides, Class notes & Summaries

BIOL 111 FINAL TAMU – FLETCHER QUESTIONS AND ANSWERS 100% SOLVED The element present in all organic molecules is Carbon Cell membranes have distinct inside and outside faces. Which of the following statements is the most likely explanation for the membrane's asymmetrical nature? The two sides of a cell membrane face different environments and carry out different functions Which of the following statements is true about buffer solutions? They maintain a relatively constant pH when either acid...

An enzyme has a mutation within the substrate-binding site that reduces the binding of the coenzyme needed for covalent catalysis. Which of the following is likely to result as a consequence of this mutation? a. the enzyme will use and alternative coenzyme for the reaction b. the enzyme will not be able to bind to the substrate c. The enzyme will not be able to form the transition state complex d. The enzyme will function normally correct answer: c. The enzyme will not be able to form the t...

MCB: All Exam Questions and Answers 2023 with complete solution;(MCB test bank) 50 multiple choice questions, covering all the topics we've taught you over the course of the semester. The exam will be split into 4 sections: 1) Proteins (10 points) 2) DNA (10 points), 3) Transcription & Translation (10 points) , and 4) Energy & Metabolism (20 points). The best way to prepare for this exam is to review your old exams and focus on the "big pictures" of each lecture using the "specifics to kn...

A&P Exam 1 (Chapters 1-4) Review Questions & Answers, 100% Accurate, rated A What six functions characterize all living things? - -Organization Responsiveness Growth Reproduction Movement Metabolism/Excretion What is homeostasis? - -A steady state of internal environment of an organism. What is the difference between positive and negative feedback? Give an example of each. - -Positive feedback enhances change (labor contractions during birth, blood clotting, etc...) Negativ...

Which level of protein structure is disrupted through the hydrolysis of peptide bonds? Quaternary Tertiary Primary Secondary - ANSWER Primary The primary structure of a protein is the sequence of amino acids held together by peptide bonds. Peptide bonds are formed by dehydration reactions and disrupted by hydrolysis. A mutation in the beta-hemoglobin gene, which results in the replacement of the amino acid glutamate in position 6 with the amino acid valine, leads to the develop...

Which of the following best describes tertiary structure? correct answer: Interactions between alpha helices and beta sheets to form a domain Movement of ammonia from an amino acid to an alpha-keto acid involves a family a enzymes best categorized as which of the following? correct answer: Transferases How do most enzymes reduce the activation energy needed to move a reaction forward? correct answer: Providing an active site most complementary the transition state Domains are common ...

Portage Learning CHEM 210 exams 1-8 and final exam Question 1 3 / 3 pts True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. True Correct! False Question 2 3 / 3 pts True or False: Biomolecules can have only two functional groups. True Correct! False Question 3 3 / 3 pts True or False: The following functional group is an alcohol. True Correct! False Question 4 3 / 3 pts True or False: In ...

OPTOPREP NBEO EXAM 2024 WITH 100% CORRECT ANSWERS If a thin lens with an index of 1.5 has a dioptric power of +4.00 in air, what is its power if placed in water? A) +1.18 diopters B) +11.76 diopters C) +1.36 diopters D) +4.00 diopters - correct answer C) +1.36 diopters Alpha helices and beta sheets are considered which level of protein structure? A) Quaternary B) Primary C) Tertiary D) Secondary - correct answer D) Secondary An amphipathic molecule will react in what manne...

If a thin lens with an index of 1.5 has a dioptric power of +4.00 in air, what is its power if placed in water? A) +1.18 diopters B) +11.76 diopters C) +1.36 diopters D) +4.00 diopters - correct answer C) +1.36 diopters Alpha helices and beta sheets are considered which level of protein structure? A) Quaternary B) Primary C) Tertiary D) Secondary - correct answer D) Secondary An amphipathic molecule will react in what manner when exposed to water? A) It will completely ...

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 following will lower the affinity of hemoglobin for oxygen? a) decrease in protons b) increase in...