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Pearson Edexcel AS/A-level BIOLOGY study terms well defined 2024 Polymers - Answer large compound formed from combinations of many monomers Macromolecules - Answer A very large organic molecule composed of many smaller molecules Carbohydrates - Answe $11.99   Add to cart

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Pearson Edexcel AS/A-level BIOLOGY study terms well defined 2024 Polymers - Answer large compound formed from combinations of many monomers Macromolecules - Answer A very large organic molecule composed of many smaller molecules Carbohydrates - Answe

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Pearson Edexcel AS/A-level BIOLOGY study terms well defined 2024 Polymers - Answer large compound formed from combinations of many monomers Macromolecules - Answer A very large organic molecule composed of many smaller molecules Carbohydrates - Answer the starches and sugars present in foo...

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  • Pearson Edexcel AS/A-level BIOLOGY stdy terms w
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Pearson Edexcel AS/A-level
BIOLOGY study terms well
defined 2024

Polymers - Answer large compound formed from combinations
of many monomers


Macromolecules - Answer A very large organic molecule
composed of many smaller molecules


Carbohydrates - Answer the starches and sugars present in
foods

,disaccharides - Answer Carbohydrates that are made up of two
monosaccharides, sucrose, lactose, maltose.


formula of monosaccharides - Answer (CH2O)n


Tricose - Answer n = 3 : C3H6O3


Hexose - Answer n=6 : C6H12O6


Isomers - Answer Two different molecules that have the same
chemical formula e.g. glucose's isomers include alpha and beta
glucose.


condensation reaction - Answer a chemical reaction in which
two or more molecules combine to produce water as a
byproduct


Monosaccharides - Answer Single sugar molecules, simple,
glucose, fructose, galactose.


glycosidic bond - Answer A glycosidic bond is a covalent bond in
which a carbohydrate binds to another group, which could also

,be a carbohydrate. E.g a glycosidic bond is found between the
two glucose molecules in maltose.


Benedict's solution - Answer A chemical indicator that, when
added to a solution and heated, changes from blue to light
green to red in the presence of increasing concentrations of
sugar.


reducing sugars - Answer sugars that react with Benedict's
solution and reduce Copper III ions to copper I ions giving an
orangey-red precipitate


Non-reducing sugar - Answer sugars that do not react with
Benedict's solution.


Oligosaccharides - Answer 3-10 monosaccharides


Polysaccharides - Answer 11+ monosaccharides


Hydrolysis - Answer the chemical breakdown of a compound
due to reaction with water.

, Polysaccharide structure - Answer - Very compact
- Physically and chemically inactive
- not very soluble in water


Starch - Answer storage form of glucose in plants


Amylose - Answer The simplest form of starch, unbranched,
compact, only 1-4 glycosidic bonds for storage, need for an
instant burst of energy


Amylopectin - Answer A complex carbohydrate made up of
glucose monomers joined by both 1,4-glycosidic bonds and 1,6-
glycosidic bonds so the molecules branch repeatedly


What creates branches in starch - Answer 1-6 glycosidic bonds


Glycogen - Answer storage form of glucose in liver and muscle


Glucagon - Answer A protein hormone secreted by pancreas to
break down glycogen into glucose.

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