WorksheetsBiology Macromolecules
Total questions: 25
Worksheet time: 25mins
What biological macromolecule is generally insoluble in water and functions in an important role in biological membranes?
carbohydrates
proteins
nucleic acids
lipids
Which of the following best describes the major function of the biological macromolecule DNA?
provides the energy required by the cell
synthesizes RNA
stores information that translates into making proteins
decreases the activation energy required for a reaction
Which answer best describes how carbohydrates and lipids are similar?
Both contain fats and oils and have an important structural function within the cell.
Both are polymers that are linked by peptide bonds.
Both are nucleic acids involved in making ATP.
Both contain carbon, hydrogen, and oxygen, and are broken down as a source of energy.
Which biological molecule transports substances, speeds up reactions, makes hormones, and provides structural support?
carbohydrates
proteins
deoxyribonucleic acid
adenosine triphosphate
Which of the following is NOT a type of macromolecule?
Carbohydrates
Lipids
Proteins
Vitamins
Match the following macromolecules to what elements are found in them.
Carbohydrates
Carbon
Hydrogen
Oxygen
(Ring structure)
Lipid
Carbon
Hydrogen
Oxygen
(E structure)
Protein
Carbon
Hydrogen
Oxygen
Nitrogen
Nucleic Acids
Carbon
Hydrogen
Oxygen
Nitrogen
Phosphorus
Match the polymer up top with its function(s) below.
carbohydrates
primary source of energy
proteins
enzymes speed up chemical reactions
nucleic acids
store/transmit genetic information
lipids
make up a majority of cell membranes
All polymers are made up of...
monosaccharides
monomers
proteins
None of these
Nucleotides consist of a phosphate group, a nitrogenous base, and which of the following?
fatty acids
an amino acid
a 5-carbon sugar
glycerol
What are Macromolecules?
Big molecules
Compounds that contain organic molecules
Compounds that contain carbon
The Elements of Life
What are the monomers and polymers of Carbohydrates?
Glucose, Sucrose, and Starch
Glycerol and Sucrose
Monosaccharides, Disaccharides, and Polysaccharides
Sugars and Starches
What is ONE of the purposes of Carbohydrates?
Making cellulose to scrub and clean our digestive system
Short term storage
Short term energy storage
Glycerol and Fatty Acids are the monomers of Lipids
True
False
Which one is a purpose of Lipids?
Build most cell parts
Support plant fibers
Horomone support
Form phospholipids
What is the main difference between Saturated and Unsaturated Lipids?
Saturated lipids have more carbon atoms allowing it to bend
Saturated lipids cant bend due to having the maximum number of hydrogen atoms
Unsaturated lipids are solid at room temperature
Unsaturated lipids have no carbon to carbon double bonds
What is the purpose of Proteins?
To build up most cell parts and speed up chemical reactions
To make organisms stronger
To produce enzymes to heal your body
To form muscle
Proteins are found in all living cells
True
False
What is a Protein considered when it is the wrong shape and cannot perform its job?
Broken
A Non-Protein
Denatured
How can a Protein become denatured?
Being Folded too many times
High pH levels
Low pH levels
High temperatures
What is another name for Nucleic Acids
DNA
Nucleus Acids
RNA
Nucleotides
Which of the following macromolecules is primarily responsible for storing genetic information in living organisms?
Carbohydrates
Proteins
Lipids
Nucleic Acids
What type of bond is primarily responsible for the secondary structure of proteins, such as alpha helices and beta sheets?
Ionic bonds
Hydrogen bonds
Covalent bonds
Disulfide bonds
Which macromolecule is most directly involved in the catalysis of biochemical reactions?
Carbohydrates
Proteins
Lipids
Nucleic Acids
In an experiment, a student adds iodine solution to a sample and observes a blue-black color. This indicates the presence of which macromolecule?
Proteins
Lipids
Carbohydrates
Nucleic Acids
Which of the following is a real-world application of lipids in the human body?
Energy storage and insulation
Genetic information storage
Catalyzing biochemical reactions
Transporting oxygen in the blood
