Biological Molecules

Guess the biologically important molecule based on the information given.

The names of specific molecules are the answers for this quiz.

In most cases, chemical formulas will not be accepted. (some molecules may have the same formula)

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Last updated: February 11, 2021

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Hint	Answer
Needed for all life to survive	Water
A hexose monosaccharide synthesised by plants	Glucose
A hexose monosaccharide also known a 'fruit sugar'	Fructose
A disaccharide formed from two (alpha) glucose molecules	Maltose
A disaccharide formed from one (alpha) glucose molecule and one fructose molecule	Sucrose
A polysaccharide used as a storage molecule in plants	Starch
A type of the above which forms side branches	Amylopectin
Similar to the above, contrastingly does not form side branches	Amylose
Storage carbohydrate found in most animals	Glycogen
A polysaccharide with a structural role, found in the cell wall of plants	Cellulose

Hint	Answer
A lipid formed by the condensation of glycerol and fatty acid	Triglyceride
A lipid with hydrophobic and hydrophilic properties, found in cell membranes	Phospholipid
Sugar found naturally in milk	Lactose
The above is produced by glucose and...	Galactose
A hydrophobic molecule found in the cell membrane - often found in too high concentrations of those with obesity	Cholesterol
The sub-unit of all proteins	Amino acids
A fibrous protein found in the tendons of animals	Collagen
Gives blood its ability to carry oxygen	Haemoglobin
Double stranded nucleic acid	Deoxyribonucleic acid
Single stranded nucleic acid	Ribonucleic acid