18 Questions
What is the main role of lipids in the body?
Energy storage
Which of the following is NOT a type of lipid?
Proteins
Where are saturated fats commonly found?
Palm & coconut oil
What type of linkage is found in triacylglycerides?
Ester linkage
Which fatty acids are considered essential and commonly found in fish and flaxseed oil?
Omega fatty acids
What is the structure of phospholipids in cell membranes?
Two fatty acids and a phosphate group
What are the main types of secondary structure in proteins?
Alpha helices and beta sheets
What type of bond maintains the tertiary structure of proteins?
Disulfide bridge
What happens to a protein during denaturation?
It loses its normal function
Which type of protein functions as a motor?
Myosin
What is the primary structure of nucleic acids?
A chain made up of nucleotides
Which of the following is a main type of nucleic acid?
DNA
What type of bond joins disaccharides together?
Glycosidic linkage
Which artificial sweetener is approximately 200 times sweeter than sugar?
Aspartame
What is the main difference between starch and cellulose?
Starch has alpha glucose linkage, cellulose has beta glucose linkage
What component of the cell uses polysaccharides as energy stores?
Glycogen granules
What type of molecules are glycoproteins and glycolipids?
Carbohydrates bonded to lipids and proteins
What forms a specific 3D structure in proteins?
Peptide bonds
Test your knowledge on lipids, compounds that are generally hydrophobic and include fats, waxes, sterols, phospholipids, and vitamins. Learn about their roles in energy storage, membrane structure, and as signalling molecules.
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