lecture on carbohydrates and lipids

This set of flashcards covers key concepts from the lecture on carbohydrates, lipids, proteins, and nucleic acids, focusing on their structures, functions, and interactions.

What are the atoms that constitute carbohydrates?

Carbohydrates are made up of carbon, hydrogen, and oxygen (CHO).

Are carbohydrates hydrophobic or hydrophilic?

Carbohydrates are hydrophilic.

What is the main function of carbohydrates in the body?

The main function of carbohydrates is to provide quick energy.

What type of bond is found in triglycerides?

Triglycerides are connected by ester bonds.

How do we obtain energy from lipids?

Lipids provide long-term energy storage.

What is the difference between a monosaccharide and a polysaccharide?

A monosaccharide is a single sugar unit, while a polysaccharide is a chain of sugar units.

What process breaks down polymers into monomers?

Hydrolysis is the process that breaks down polymers into monomers.

What are the four levels of protein structure?

The four levels of protein structure are primary, secondary, tertiary, and quaternary.

What type of bond links amino acids in proteins?

A peptide bond links amino acids in proteins.

What are the components of a nucleotide?

A nucleotide consists of a phosphate group, a sugar, and a nitrogenous base.

What kind of bond links nucleotides together in nucleic acids?

Nucleotides are linked together by phosphodiester bonds.

What is the role of DNA in the body?

DNA stores, transmits, and retrieves genetic information.

What determines the unique properties of each amino acid in a protein?

The side chain (R group) of each amino acid determines its unique properties.

Why are proteins classified based on their R groups?

Proteins can be classified as hydrophilic (water-loving) or hydrophobic (water-hating) based on their R groups.

What is a polysaccharide?

A polysaccharide is a carbohydrate that consists of long chains of monosaccharide units.

What property makes proteins unique compared to carbohydrates and lipids?

Proteins contain nitrogen, while carbohydrates and lipids do not.

What is a glycosidic bond?

A glycosidic bond is the bond formed between sugar units in carbohydrates.

What is an essential amino acid?

An essential amino acid is an amino acid that the body cannot synthesize and must obtain from the diet.