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WorksheetsBiomolecules
Total questions: 20
Worksheet time: 10mins
What are units that make up proteins?
fatty acids
amino acids
glucose molecules
nucleotide molecules
Waxes create a waterproof layer on the outside of some living organisms. To which group of organic molecules do waxes belong?
Carbohydrates
Nucleic Acids
Lipids
Proteins
Which organic molecule is paired with its basic building block?
carbohydrate: amino acids
nucleic acids: nucleotides
lipids: monosaccharides
proteins: fatty acids
Which organic molecules supply energy to cells?
carbohydrates and nucleic acids
carbohydrates and lipids
proteins and nucleic acids
lipids and nucleic acids
Which organic molecules are used for long term energy storage?
lipids
carbohydrates
proteins
nucleic acids
Look at the picture. What is MOST LIKELY being shown?
amino acids
monosaccharides
RNA
DNA
Why are enzymes essential to organisms?
They are catalysts for biochemical reactions in cells.
They provide short term and long term energy for the cells.
They provide instructions for protein synthesis and determine traits.
They create semi-permeable barriers in the cell that separates the inside and outside of the cell.
Why are enzymes essential to all multicellular organisms?
They provide insulation.
They produce living tissue.
They contain genetic information.
They catalyze metabolic reactions.
Which best describes the difference between DNA and RNA?
DNA is an amino acid and RNA is a nucleic acid.
DNA contains phosphate and RNA contains potassium.
DNA has a nitrogenous base and RNA has a carbon base.
DNA contains deoxyribose sugar and RNA contains ribose sugar.
Which organic molecule would a long-distance runner most likely choose to eat before a race? (Recall the amoeba sisters video)
A protein, because it builds muscle.
A carbohydrate, because it gives quick energy.
A carbohydrate, because it stores and releases energy.
A protein, because it transports oxygen in the blood stream.
Many people are lactose intolerant and cannot digest dairy products. What enzyme are their bodies most likely lacking?
lipase
lactase
maltase
protease
What is a difference between saturated and unsaturated fats?
Saturated fats are liquid and unsaturated fats are solid.
Saturated fats are solid and unsaturated fats are liquid at room temperature.
Saturated fats are healthier for you than unsaturated fats.
Saturated fats contain double carbon bonds and unsaturated fats have single bonds.
Why is the “lock and key” analogy often used to describe enzyme function?
Each enzyme is the same as its substrate.
Each enzyme will fit with only one specific kind of substrate.
Each enzyme can only be used once in a reaction and cannot be used again.
Each enzyme has its own active site that will not fit with other active sites.
To which class of organic compounds do enzymes belong?
proteins
amino acids
nucleic acids
monosaccharides
Which subunits make up the structure of all proteins?
glucose
amino acids
carbohydrates
phospholipids
Which organic molecule serves as the main source of energy for cells?
amino acids
glucose
proteins
starch
Which organic molecule is described as high in fiber?
amino acid
cellulose
fatty acid
glucose
Which is the function of the protein hemoglobin?
to transport oxygen in the body
to act as an enzyme during digestion
to build and repair cells in the body
to defend the body against bacteria and viruses
Which is a general characteristic of lipids?
Lipids contain nitrogen.
Lipids are soluble in water.
Lipids are insoluble in water.
Lipids contain chains of amino acids.
If a person’s arteries become clogged, he or she might have a stroke. What is the cause of these artery-clogging deposits?
lipids
proteins
nucleic acids
carbohydrates
