Biochemistry Quiz: Proteins and Amino Acids

<p>Lipase (B)</p> Signup and view all the answers

<p>Albumin (A)</p> Signup and view all the answers

<p>Prolamins (B)</p> Signup and view all the answers

<p>Identifying similar sequences to a given query sequence in a database. (B)</p> Signup and view all the answers

<p>Prosthetic Group (B)</p> Signup and view all the answers

<p>Protein Crystallography (C)</p> Signup and view all the answers

<p>Involved in Cholesterol Transport (D)</p> Signup and view all the answers

<p>Identifying conserved regions and evolutionary relationships between proteins. (A)</p> Signup and view all the answers

<p>BLAST (C)</p> Signup and view all the answers

<p>To identify functional regions within protein sequences. (D)</p> Signup and view all the answers

<p><em>Ab initio</em> prediction does not rely on experimental data, while homology-based prediction does. (C)</p> Signup and view all the answers

<p>To understand the evolutionary history of proteins. (D)</p> Signup and view all the answers

<p>Multiple Sequence Alignment (C)</p> Signup and view all the answers

<p>A functional unit of a protein that can be composed of multiple subunits. (B)</p> Signup and view all the answers

<p>A single amino acid in a protein chain (D)</p> Signup and view all the answers

<p>Fibrous protein (C)</p> Signup and view all the answers

<p>Resistant to stretching (B)</p> Signup and view all the answers

<p>Hemoglobin (D)</p> Signup and view all the answers

<p>Hemoglobin (C)</p> Signup and view all the answers

<p>Signaling and transport (D)</p> Signup and view all the answers

<p>G-protein coupled receptors (A)</p> Signup and view all the answers

<p>HMMER (C)</p> Signup and view all the answers

<p>Storing protein sequence and function data (B)</p> Signup and view all the answers

<p>I-TASSER (B)</p> Signup and view all the answers

<p>Predicting protein structures based on homology (B)</p> Signup and view all the answers

<p>PDB (B)</p> Signup and view all the answers

<p>Identifying potential drug targets and designing novel drugs (B)</p> Signup and view all the answers

<p>Developing diagnostic markers for diseases (D)</p> Signup and view all the answers

<p>BLAST (A)</p> Signup and view all the answers

<p>Covalent bonds (A)</p> Signup and view all the answers

<p>Antiparallel β-sheets are more stable due to stronger hydrogen bonds. (D)</p> Signup and view all the answers

<p>It is important for the overall function of the protein. (B)</p> Signup and view all the answers

<p>They cause nonpolar amino acids to cluster together in the protein's interior. (D)</p> Signup and view all the answers

<p>Silk fibroin (B)</p> Signup and view all the answers

<p>To contribute to the stability and scaffolding of proteins. (B)</p> Signup and view all the answers

<p>All of the above. (D)</p> Signup and view all the answers

<p>The concentration of the protein. (D)</p> Signup and view all the answers

<p>Separating proteins based on their molecular weight. (C)</p> Signup and view all the answers

<p>Chromatography (A)</p> Signup and view all the answers

<p>To impart a negative charge to proteins. (C)</p> Signup and view all the answers

<p>Polyacrylamide gel (A)</p> Signup and view all the answers

<p>It causes proteins to move towards the positive electrode. (A)</p> Signup and view all the answers

<p>To give a negative charge to all proteins ensuring separation based on size. (D)</p> Signup and view all the answers

<p>It provides a stable matrix for the proteins to move through. (D)</p> Signup and view all the answers

<p>Multiple bands corresponding to different proteins based on their molecular weight. (D)</p> Signup and view all the answers

Proteins that have carbohydrate components attached to them.

Complexes of proteins and lipids, involved in transporting cholesterol.

Proteins that contain metal ions, essential for various functions.

Proteins that provide support and structure to cells and tissues.

Proteins that carry molecules across membranes or through blood.

Proteins that catalyze biochemical reactions, speeding them up.

Defensive proteins that target and neutralize pathogens.

Water-soluble proteins that maintain osmotic pressure in blood.

Identifying similar sequences in databases using tools like BLAST.

Identifying functional regions within protein sequences.

Aligning multiple protein sequences to find conserved regions and evolutionary relationships.

Constructing evolutionary trees to understand the history of proteins.

Predicting protein structure from amino acid sequences without experimental data.

Basic Local Alignment Search Tool, a method for comparing sequences.

Areas in sequences that remain unchanged across different species, indicating importance.

Diagrams showing the evolutionary relationships between different species or proteins.

A technique that separates proteins by molecular weight using sodium dodecyl sulfate and polyacrylamide gel.

The process of unfolding proteins using SDS, which gives them a negative charge and removes their native structure.

SDS imparts a negative charge to proteins, allowing them to migrate towards the positive electrode in a gel.

A gel matrix used in SDS-PAGE that acts as a sieve for proteins based on size.

An applied electric field that drives the movement of charged proteins through the gel.

Denatured proteins are placed into wells of the polyacrylamide gel before electrophoresis occurs.

The weight of proteins that determines their separation during SDS-PAGE; lighter proteins move faster.

Used to analyze protein purity and size, valuable for research and diagnostics.

An individual subunit of a larger protein complex.

A protein complex with four subunits of different types.

A protein composed of α and β protomers that carries oxygen.

Elongated, insoluble proteins providing structural support.

Compact, water-soluble proteins involved in dynamic functions.

Proteins consisting only of amino acids.

Proteins that include a non-protein component.

A protein complex where each protomer is a single polypeptide chain.

Software for identifying protein families using Hidden Markov Models.

Homology modeling software that builds 3D structures of proteins.

Server for predicting protein structures from amino acid sequences.

Comprehensive database of protein sequences and functions.

Protein Data Bank storing experimentally determined protein structures.

Process of identifying and designing new drugs by targeting proteins.

Developing markers using bioinformatics for identifying diseases.

Utilization of bioinformatics in analyzing proteins and aiding drug design.

Extended, pleated structures in proteins, can be parallel or antiparallel.

Contributes to protein stability and serves as scaffolding.

Improperly folded β-sheets can cause diseases like Alzheimer's.

The overall 3D shape of a protein, stabilized by various interactions.

Forces that cause non-polar parts of a protein to avoid water, aiding structure.

Weak attractions between polar groups, important for maintaining structure.

Stronger connections between positively and negatively charged groups in proteins.

Covalent bonds between cysteine residues that stabilize protein structure.