Chem Lecture Exam 1

Front

What is the key function of electrolytes related to nerve function?

Back

Transmit electrical impulses.

Front

What method measures peptide bonds by absorbance at 540 nm?

Back

Biuret Reaction.

Front

Which component is NOT attached to the central alpha carbon of an amino acid?

Back

Phosphate group (PO4).

Front

Which protein is a marker for neural tube defects and tumors?

Back

Alpha-1-fetoprotein.

Front

What is the role of phosphate in the body?

Back

Critical in DNA/RNA structure and acid-base balance.

Front

Define electrolytes.

Back

Substances that dissociate into ions in solution and are capable of conducting electricity.

Front

What is the structure of an amino acid?

Back

An amino group (NH2), a carboxylic acid group (COOH), a hydrogen atom (H), and an R group (side chain) attached to a central alpha carbon.

Front

What is the significance of the Biuret Reaction?

Back

It is used to detect the presence of peptide bonds in proteins.

Front

What is the function of alpha-1-fetoprotein in clinical diagnostics?

Back

It serves as a biomarker for certain cancers and neural tube defects.

Front

Explain the importance of pH regulation in the body.

Back

Maintaining pH is crucial for enzyme function, metabolic processes, and overall homeostasis.