Biological Macromolecules

What makes a molecule organic?

• the presence of nitrogen
• the presence of hydrogen
• the presence of carbon
• the presence of sulfur

T/F: Water is an organic molecule.

• True
• False

What is an isomer?

• two molecules with the same chemical formula but different structure
• two molecules with different chemical formulas but are arranged in the same structure
• a molecule that has more neutrons than the usual amount in each atom
• a molecule whose chemical formula is disrupted and causes radioactive decay from the nucleus

What is a dehydration synthesis reaction?

• water is added to a reaction and two monomers are broken apart
• the cell becomes dehydrated which increases the synthesis of ATP
• water is removed from a reaction two monomers are broken apart
• water is removed from a reaction and two monomers are combined

What is a hydrolysis reaction?

• water is removed from a reaction and monomers are broken apart
• water is added to a reaction and monomers are broken apart
• water is removed from a reaction and monomers are combined
• water is added to a reaction and monomers are combined

Which of these elements is found in carbohydrates?

• Carbon
• Hydrogen
• Oxygen
• none of the above
• all of the above

What is the monomer of a carbohydrate?

• fatty acid
• disaccharide
• monosaccharide
• nucleotide

What is a disaccharide?

• A & C
• two monosaccharides combined
• two triglycerides combined
• a carbohydrate
• a lipid

What bonds hold carbohydrates together?

• phosphoester
• glycosydic
• ester
• peptide

What is a polysaccharide?

• two monosaccharides put together
• two disaccharides put together
• a lipid
• A & C