WorksheetsMacromolecules Quiz
Total questions: 15
Worksheet time: 9mins
Two of the four principle classes of organic compounds are proteins and nucleic acids. What is the relationship between proteins and nucleic acids?
Nucleic acids use proteins for energy
Nucleic acids are a subset of proteins
Proteins are long polymers of nucleic acids
Nucleic acids contain the information to make proteins
Resistance to antibiotics results from variations in the genetic code of Streptococcus pneumoniae. Which type of molecule encodes genetic information in Streptococcus pneumoniae?
carbohydrate
fatty acid
nucleic acid
protein.
Baby food manufacturers sometimes use proteases in their products. Proteases are enzymes that catalyze the breakdown of the proteins in these foods, making digestion easier for infants.
Proteases are which of the following types of molecules?
enzyme
fatty acid
carbohydrate
nucleic acid
In living organisms, lipids function mainly as:
Sources of stored energy and transmitters of genetic information
Sources of stored energy and components of cellular membranes
Transmitters of genetic information and catalysts of chemical reactions
Catalysts of chemical reactions and components of cellular membranes
Ovalbumin is a protein found in eggs. Which of the following best describes the molecular structure of ovalbumin?
a group of six carbon atoms joined in a ring.
a chain of amino acids folded and twisted into a molecule
a set of three fatty acids attached to a molecule of glycerol
a sequence of nitrogenous bases attached to a sugar phosphate backbone
Which macromolecule makes up the majority of the cell membrane?
nucleotide
lipid
protein
carbohydrate
A sugar, a phosphate group, and a nitrogen base form the building blocks of which organic compound?
Carbohydrate
lipids
protein
nucleic acid
Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water-permeable. This waxy coating is which of the following types of organic molecule?
Protein
carbohydrate
nucleic acid
lipid
Like complex carbohydrates, proteins are macromolecules that serve many functions and can be chemically broken down and restructured. Both proteins and complex carbohydrates are which of the following?
polymers made of smaller subunits
sequence of sugars
lipids of large molecules
nucleotides of DNA
You are analyzing a compound in the laboratory. You find that it is made up of carbon, hydrogen, and oxygen in a ratio of two hydrogen atoms for each carbon atom. What is the monomer that composes this macromolecule?
fatty acids
nucleotides
monosaccharides
nucleic acids
Use the diagram to answer the following question.
What is the primary function of the macromolecule represented by the molecules in the picture?
Short term energy storage
Long term energy storage
Speed up chemical reactoins
Store genetic information.
Since butter is an animal product that comes from milk, it contains cholesterol. The Cleveland Clinic Miller Family Heart and Vascular Institute states that there are about 33mg of cholesterol in 1 tbsp. of butter. If you use butter several times a day, or eat out often, you may be consuming more cholesterol than you think. Which of the following molecules has the correct structure for the type of macromolecule that butter is?
The diagram shows a molecular model of the structure xylose.
What is the primary function of a xylose molecule?
Short term energy storage
Long term energy storage
Speed up chemical reactions
Store genetic information
Photosynthesis involves the production of sugar and oxygen. Select the drawing that shows the carbohydrate that is formed in photosynthesis.
The following is a diagram of the product of protein synthesis. This protein is a polymer made up of molecules, labeled Z. The monomer labeled Z is most likely classified as
Nucleic Acid
Triglyceride
Monosaccharide
Amino Acid
