According to this reaction, what class of enzyme Pyruvate Carboxylase does  belong to?

A researcher is studying protein structure and notes that two amino acids, proline and glycine, play unique roles within the protein based on their distinct characteristics. What is the key structural difference between the amino acids Proline and Glycine?

Referencing the RNA nucleotide image, identify the component indicated by Arrow 1:

Researchers are studying a specific protein to better understand how its structure is stabilized. Their investigation focuses on identifying hydrogen bonds formed between the backbone atoms of amino acids, particularly those that contribute to repeating structural patterns within the protein.   Which level of protein structure would the scientists primarily examine to identify these hydrogen-bonding interactions?

A new drug is being tested to regulate the activity of an enzyme involved in cholesterol metabolism. During laboratory studies, researchers observe the following: Drug A binds to the enzyme temporarily at the active site and can be displaced by high substrate concentrations. Drug B binds covalently to the enzyme and permanently blocks its active site. Predict enzyme activity in the presence of high substrate concentration (all that apply)

A new drug is being tested to regulate the activity of an enzyme involved in cholesterol metabolism. During laboratory studies, researchers observe the following: Drug A binds to the enzyme temporarily at the active site and can be displaced by high substrate concentrations. Drug B binds covalently to the enzyme and permanently blocks its active site.   Identify the type of inhibition (all that apply):

A researcher is studying the “backbone” of a DNA molecule. They determine that the strength of the genetic strand comes from a covalent bond that connects the sugar of one nucleotide to the phosphate of the next. This bond is known as:

A researcher analyzing the structure of a newly discovered enzyme observes that the protein maintains its shape even under moderate temperature and pH variations. Structural analysis shows that the stability of the protein backbone is largely due to the chemical properties of peptide bonds connecting amino acids.  Why are peptide bonds critical for protein stability and why are they considered particularly strong within protein structures?

A patient is treated with an alkaline medication that accidentally raises intracellular pH. While DNA remains stable, cellular RNA begins to degrade via “self-cleavage.” Which structural feature of RNA facilitates this?

According to this reaction, what class of enzyme does Malate Dehydrogenase belong to?