Alpha helix Study guides, Class notes & Summaries

A spiral shape constituting one form of the secondary structure of proteins, arising from a specific hydrogen-bonding structure. - correct answer alpha helix One form of the secondary structure of proteins in which the polypeptide chain folds back and forth, or where two regions of the chain lie parallel to each other and are held together by hydrogen bonds. - correct answer beta sheet In a polypeptide chain, the first amino acid has an exposed _______ - correct answer amino group ...

Amino acids (20 types) Image: Amino acids (20 types) Primary DNA structure bonds connected by peptide bonds Secondary DNA structure bonds alpha helix and beta sheet hydrogen bonding Enzyme classification by reaction type Oxidoreductases Hydrolase Transferase Isomerase Lyases Ligase Cofactor inorganic molecule or metal ions Coenzyme small organic groups vitamins such as NAD+, FAD & coenzyme A water soluble vitamins B and C Fat soluble vitamins 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 following will lower the affinity of hemoglobin for oxygen? a) decrease in protons b) increase in...

heat is a form of? a. kinetic tial c. activation d. catalytic - ANSWER a. kinetic An alpha helix is a type of protein_________ structure? a. primary b. seconday c. tertiary d. quartenary - ANSWER b. secondary the cytoplasmic granule of RNA and protein that reads mRNA and synthesizes proteins is called the _________, an organelle that is not bound by a membrane? a. kinetechore b. Golgi complex c. ribosome d. nucleolus - ANSWER c. ribosome ______________ is not found in DN...

Which of the following is holds together the nitrogenous base of DNA across the alpha helix,What are the three components of RNA? What is RNA made up of?,What are ? ,Prac%ce Exam 3 (Nucleic Acids - Biotechnology) BIO 181 The Molecules of Life: Nucleic Acid: 1.DNA strands are lel. What is meant by the term lel?

bio 150 final exam Correct Questions & Answeheat is a form of? a. kinetic tial c. activation d. catalytic - ANSWER a. kinetic An alpha helix is a type of protein_________ structure? a. primary b. seconday c. tertiary d. quartenary - ANSWER b. secondary the cytoplasmic granule of RNA and protein that reads mRNA and synthesizes proteins is called the _________, an organelle that is not bound by a membrane? a. kinetechore b. Golgi complex c. ribosome d. nucleolus - ANSWER c. r...

AP Biology Exam Review 2024/2025 with Complete Solutions Protein A three dimensional polymer made of monomers of amino acids. primary structure sequence of amino acids secondary structure Either an alpha helix or beta pleated sheet due to the interactions of H-bonds tertiarty structure R-group interactions cause further folding to contribute to the overall globular protein shape quarternary structure The overall protein structure that results from the aggregation of two or more po...

Function of all muscles correct answers to generate force and movement Skeletal muscles correct answers - voluntary (somatic neurons) - striated - Multi-nucleated - insertion is more distal - antagonistic muscle groups = flexor-extensor pairs - 40% of body weight Cardiac Muscle correct answers - Primarily involuntary - striated and uninucleated - spontaneous electrical activity - altered by autonimc NS and hormones - intercalated disks that connects them - desmosomes (mechanica...

The right-handed alpha helix - Answer - An example of secondary structure; the alpha helix found in proteins is RIGHT-HANDED; spirals upwards in the counterclockwise direction About the alpha helix - Answer - AA side chains and H atoms on each alpha carbon project out from the axis; no noticeable hole in the middle because of atomic radii - intramolecular H bonds connect the carbonyl C of one aa residue to the peptide H in the 4th residue - H-bond are nearly parallel to the axis of the hel...

BCHM 307 EXAM 1 QUESTIONS WITH ANSWERS Secondary structure - Answer-the local 3-dimensional structure of the peptide backbone - there are 4 major classes of secondary structure (alpha helix, beta sheet, turns, and random coil) The alpha helix of the secondary structure - Answer-the alpha helix is a helical region of the peptide backbone that is stabilized by hydrogen bonding - carbonyl residue of each amino acid residue is hydrogen bonded to the amide group 4 residues further toward the c...