Lab Bio Biochem Quiz

What are the four classes of organic molecules found in all living things?

• proteins, carbohydrates, fats, nucleic acids

• Energy, power, force, light

• water, air, earth, and fire

• carbon, hydrogen, oxygen, nitrogen

This is the building block of which class of compound?

• Protein
• Nucleic Acid
• Lipid
• Carbohydrate

Fats and oils are composed of what two building blocks?

•  glucose and fructose 
• starch and sugar 
• water and cellulose
• fatty acids and glycerol 

What type of chemical bond is formed when the electrons are shared?

• ionic bond
• covalent bond
• hydrogen bond
• None of these answer choices

What type of chemical bond is formed between positively-charged ions and negatively-charged ions?

• ionic bond
• covalent bond
• hydrogen bond
• None of these answer choices

Which part of the atom has a positive charge?

• electron
• neutron
• proton
• particles

Which part of the atom has a negative charge?

• electron
• neutron
• proton
• particles

Which part of the atom has no charge/neutral?

• electron
• neutron
• proton
• particles

Protein molecules are composed of long chains of __________________

• DNA
• amino acids
• RNA
• ribosomes

Which macromolecule doesn't dissolve in water?

• Carbs
• Lipids
• Nucleic Acids
• Proteins