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WorksheetsMacromolecules
Total questions: 14
Worksheet time: 7mins
A cell membrane has a double layer of molecules. These molecules are made up of a phosphorus-containing “head” and two long, fatty acid “tails.”
Which of the following best explains why the molecules are classified as lipids?
They contain phosphorus.
They form a double layer.
They are made up of fatty acids.
They are found in the cell membrane.
When proteins are broken down, phenylalanine is sometimes produced. Phenylalanine contains the elements carbon, nitrogen, hydrogen, and oxygen.
Phenylalanine is which type of compound?
Amino acid
Lipid
Fatty Acid
Monosaccharide
Maltose is a carbohydrate molecule that provides energy to plants early in their life cycle. Which elements are most common in a molecule of maltose?
carbon and hydrogen
iron and zinc
phosphorus and iron
potassium and zinc
What is the monomer for lipid?
Amino acid
Fatty acid
Monosaccharide
Nucleic acid
What is the monomer for proteins
Amino acid
Fatty acid
Monosaccharide
Nucleic acid
What is the monomer for carbohydrates?
Amino acid
Fatty acid
Monosaccharides
Nucleotides
What is the monomer for nucleic acids?
Amino acid
Fatty acid
Monosaccharide
Nucleotides
Some bacteria produce cellulase, a substance that speeds up the breakdown of cellulose in plant cell walls. Cellulase is an example of which of the following?
carbohydrate
enzyme
hormone
organelle
Diatoms are marine organisms with unique cell walls that contain the element silicon. Which of the following are two common elements found in the cells of diatoms?
aluminum and magnesium
helium and hydrogen
mercury and neon
nitrogen and phosphorus
What is the most important element for life?
Hydrogen
Carbon
Oxygen
Nitrogen
What is the function of lipids?
short term energy
long term energy
genetic information
structure, movement, etc.
What is the function of carbohydrates?
short term energy
long term energy
genetic information
structure, movement, etc.
What is the function of nucleic acids?
short term energy
long term energy
genetic information
structure, movement, etc.
What is the function of proteins?
short term energy
long term energy
genetic information
structure, movement, etc.
