Biochemistry Review
What occurs when a peptide bond forms between two amino acids? Oxygen is released. Water is released. Oxygen is added. Water is added. Answer: B
What does DNA stand for? Answer: Deoxyribonucleic acid
This element is capable of forming long chains almost limitless in length. Nitrogen Oxygen Phosphorus Carbon Answer: D
A carbon based compounds are known as: Inorganic compounds Organic Compounds Substrates Enzymes Answer: B
Fertilizers containing radioactive nitrogen compounds are used in growing experimental plants. In which molecules would these compounds be detected first? Sugar Starch Proteins Fats Answer: C
One of the carbon compounds found in a cell has twice as many hydrogen atoms as oxygen atoms. This compound most likely belongs to the group of substances known as: Nucleic Acids Lipids Proteins Carbohydrates Answer: D
The compound represented by this structural formula is a(n): Amino Acid Lipid Fatty Acid Monosaccharide Answer: D
Which are the four most abundant elements in living cells? Carbon, oxygen, nitrogen, sulfur Carbon, oxygen, hydrogen, nitrogen Carbon, oxygen, sulfur, phosphorus Carbon, sulfur, hydrogen, magnesium Answer: B
Starches & sugars are examples of what? Answer: Carbohydrates
Names of sugars usually end in: Ose Ase Named after the reaction they catalyze Acid Answer: A
The smallest units of sugars are called: Amino acids Monosaccharide Starches Polypeptides Answer: B
This type of compound has a hydrogen to oxygen ration much greater than 2:1. Carbohydrate Lipid Protein Nucleic Acid Answer: B
What is a polymer? What the enzyme and substrate form. The reaction that creates disaccharides. A type of protein. Long chain of repeating units. Answer: D
Steriods, which are chemical messengers are what type of organic compound? Carbohydrate Lipid Protein Nucleic Acid Answer: B
Which of the following is not part of a nucleotide? Phosphate group Nitrogenous base Polypeptide bond 5 Carbon sugar Answer: C
One gram of fat stores how much more energy than one gram of carbohydrates? 10x 100x 2x 4x Answer: C
When one of the fatty acids contain one double it is considered: Saturated Unsaturated Polyunsaturated Amino Acid Answer: B
When monomers join together, what do they form? Amino acids Polymers DNA Enzymes Answer: B
This molecule combines with 3 fatty acids to make a lipid: Amino Acid Nucleotide Glycogen Glycerol Answer: D
The location where the substrate binds to an enzyme is known as: Active site Chemical reaction Nucleotide Dehydration synthesis Answer: A
Proteins contain this element in addition to carbon, hydrogen, and oxygen. Phosphorus Sodium Nitrogen Helium Answer: C
Living things use this as their main source of energy: Lipids Carbohydrates Nucleic Acids Proteins Answer: B
Give one example of a monosaccharide: Answer: glucose, galactose, fructose
What does a catalyst do? Forms long chains of molecules. Speeds up a chemical reaction. Breaks down molecules into smaller pieces. Makes amino acids. Answer: B
What is the reaction that helps make long chains of compounds? Dehydration synthesis Enzyme substrate complex Hydrolysis Catalyst Answer: A
Proteins are composed of smaller units known as: Nucleotides Amino acids Enzymes Monosaccharides Answer: B
How many amino acids do living organisms use to synthesize their proteins? 12 2 10 20 Answer: D
Which of the following is an example of a monosaccharide? Maltose Valine DNA Glucose Answer: D
What binds to an enzyme? Lipid Protein Substrate Sugar Answer: C
List the three different types of lipids. Answer: Fats, oils, waxes.
What is this? What molecule is the arrow pointing to? Answer: Cell Membrane, Lipid