AQA Year 1 Unit 1: biomolecules Questions and Correct Answers | Latest Update
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Course
AQA
Institution
AQA
what is a monomer
A monomer is a small unit that can join together repetitively to form a
larger molecule / polymer.
what is a polymer
large number of monomer units joined together
What is the monomer of carbohydrates called?
monosaccharides
What is the monomer of protein called...
Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
AQA Year 1 Unit 1: biomolecules Questions
and Correct Answers | Latest Update
what is a monomer
A monomer is a small unit that can join together repetitively to form a
larger molecule / polymer.
what is a polymer
large number of monomer units joined together
What is the monomer of carbohydrates called?
monosaccharides
What is the monomer of protein called?
amino acids
What is the monomer of nucleic acids called?
nucleotide
what happens in the condensation of two monosaccharides?
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, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
glycosidic bond is formed, water is released
what happens in the condensation of two amino acids?
peptide bond forms between the carbon of the carboxyl group of one
amino acid and the nitrogen of the amine group. Water is released.
what happens in the hydrolysis of a triglyceride to its component parts?
Water is used to break 3 ester bonds. This forms 3 fatty acids and one
glycerol molecule and uses up 3 molecules of water.
name 3 monosaccharides
glucose, galactose and fructose
what is sucrose made from
glucose and fructose
what is maltose made from
two alpha glucose molecules
what is lactose made from
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, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
glucose and galactose
what is the difference between alpha and beta glucose
alpha glucose has the H above the plane on carbon one, and beta glucose
has the H below the plane on carbon 1.
how is glycogen made
many alpha glucose join by 1,4 glycosidic bonds to make a coiled chain,
with 1,6 glycosidic bonds forming branches.
how is starch made
amylose is coiled chains of alpha glucose joined by 1,4 glycosidic bonds
formed in a condensation reaction.
amylopectin is branched chains of beta glucose joined by 1,6 glycosidic bonds formed in a
condensation reaction.
how is cellulose made
every other beta glucose molecule is flipped as they join together via 1,4
glycosidic bonds. Many long straight ch ains of cellulose attract to each
other via hydrogen bonds able to be formed due to the closeness of each
strand and that each strand contains every other glucose rotated.
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