Biochemistry Review Question Preview (ID: 43964)


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In a chemical equation, what is the product?
a) The ending materials
b) The Starting materials
c) All the elements in the equation
d) Found on the left side of the chemical equation

What two elements are found in all organic molecules?
a) Carbon and Hydrogen
b) Hydrogen and Oxygen
c) Carbon and Nitrogen
d) Nitrogen and Oxygen

What are the differences between saturated and unsaturated fats?
a) Saturated are straight in their structure and unsaturated are bent in their structure.
b) Unsaturated are straight in their structure and saturated are bent in their structure.
c)
d)

How do enzymes work in chemical reactions?
a) Enzymes lower the activation energy needed in a reaction.
b) Enzymes provide all the energy needed for the reaction.
c) Enzymes can break down many different types of molecules
d) Enzymes create energy

What kinds of bonds hold amino acids together in a polypeptide chain?
a) Peptide bonds
b) Covalent bonds
c) Ionic bonds
d) Disulfide bonds

What are the four main macromolecules found in living things?
a) Lipids, Carbohydrates, Proteins, Nucleic Acids
b) Lipids, Monosaccharides, Proteins, Amino Acids
c) Lipids, Carbohydrates, Glucose, Nucleic Acids
d) Fatty acids, sucrose, hemoglobin and DNA

What is a dehydration reaction?
a) The building of a molecule
b) The breaking of a molecule
c) The reaction sites
d) The enzyme used to create the molecule

How many amino acids are there?
a) 20
b) 25
c) 15
d) 18

What is the activation energy of a reaction?
a) The energy needed to start a reaction
b) The energy used in the reaction
c) The energy created by the reaction
d) The energy the enzyme brings to the reaction

What are carbohydrates used for in your body?
a) to make energy
b) to make fats
c) to store for later use
d) to make you unhealthy

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