Exploring the World of Biomolecules

The video tutorial covers the four types of macromolecules: carbohydrates, lipids, proteins, and nucleic acids. It explains their structures, functions, and roles in cellular mechanisms. Carbohydrates are energy sources and aid in cell communication. Lipids, including triglycerides and phospholipids, store energy and form cell membranes. Proteins, made of amino acids, perform various cellular tasks. Nucleic acids, DNA and RNA, store and transmit genetic information.

Which of the following is NOT a type of macromolecule found in all organisms?

• Lipids

• Carbohydrates

• Proteins

• Vitamins

What are the monomers of carbohydrates called?

• Nucleotides

• Monosaccharides

• Amino acids

• Fatty acids

Which of the following is a common monosaccharide?

• Maltose

• Glucose

• Lactose

• Sucrose

What is the primary function of lipids in cells?

• Cell communication

• Genetic information

• Catalyzing reactions

• Energy storage

What is the backbone of triglycerides made of?

• Nucleotides

• Amino acids

• Glycerol

• Monosaccharides

Which property of lipids allows them to form cell membranes?

• Polarity

• Hydrophilicity

• Hydrophobicity

• Solubility

What are the monomers of proteins called?

• Fatty acids

• Amino acids

• Nucleotides

• Monosaccharides

Tags

NGSS.HS-LS1-6

How many levels of folding do proteins typically undergo before becoming functional?

• One

• Two

• Five

• Three or four

Which nucleic acid is responsible for coding genetic information?

• RNA

• DNA

• ATP

• NADH

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What type of bond links nucleotides in DNA?

• Glycosidic bond

• Peptide bond

• Phosphodiester bond

• Hydrogen bond