AP Biology Biological Macromolecules — practice questions
28 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice AP Biology Biological Macromolecules in the app →Carbohydrates, lipids, nucleic acids and one other group make up the four major classes of biological macromolWhen two monomers join to build a polymer, the small molecule released is:Carbohydrates contain carbon, hydrogen and oxygen in a characteristic ratio written as:Carbohydrates are classified into three subtypes: monosaccharides, polysaccharides and:A typical fat molecule is built from one glycerol bonded to:The two main types of nucleic acid found in cells are RNA and:Every nucleotide is built from a phosphate group, a nitrogenous base and:The base thymine appears in DNA but in RNA it is replaced by:Dehydration and hydrolysis reactions differ in their energy balance because:A sugar carrying an aldehyde functional group is classified as:Sucrose, ordinary table sugar, is a disaccharide assembled from:Amylose and amylopectin are both forms of starch, but they differ because:A fatty acid with no double bonds in its hydrocarbon chain is described as saturated because:Most unsaturated fats are liquid at room temperature because a cis double bond:Phospholipids are described as amphipathic because a single molecule carries:Cholesterol belongs to which class of lipid?How many types of amino acid are commonly used to build proteins?Lysine and arginine are called basic amino acids because their side chains are:A polypeptide chain has a free amino group at one end. That end is called the:Bases in nucleic acids fall into two categories. Cytosine, thymine and uracil are:Cellulose and starch are both glucose polymers, yet humans digest only starch. The structural reason is that iTermites can survive on wood because they:A fatty acid is named omega-3 when the:Nine of the twenty amino acids are called essential in humans because they:Sickle cell disease arises from a change in hemoglobin at:In the alpha helix, a hydrogen bond forms between the carbonyl oxygen of one amino acid and an amino acid thatDenaturation is often reversible because the process leaves intact the protein's:In the sugar-phosphate backbone of a nucleic acid, the phosphate residue links: