Review of Macromolecules and Nucleotides

Flashcards covering key concepts related to macromolecules, nucleotides, and their functions based on lecture notes.

What distinguishes lipids from foods primarily rich in carbohydrates or proteins?

Foods such as olive oil and butter are excellent sources of lipids.

Which of the following is NOT a component of a nucleotide monomer?

B. A fatty acid chain.

What does the term 'amphipathic' describe about phospholipids?

They have a charged, hydrophilic head and an uncharged, hydrophobic tail.

What is the storage polysaccharide found in plants composed of coiled amylose and branched amylopectin?

Starch.

Which of the following is an example of an informational macromolecule?

C. DNA, which dictates the amino acid sequence of proteins.

What is the single-unit building block (monomer) of a large carbohydrate like starch?

C. Monosaccharide.

What is the primary role of an enzyme in a biological system?

To lower the activation energy required to speed up a chemical reaction.

What is the key role of DNA in a cell?

To store, transmit, and express hereditary information.