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Topic 1- A Level Edexcel Biology B study guide elaborated correctly. hydrogen bonds - Answer weak electrostatic intermolecular bonds formed between polar molecules containing at least one hydrogen atom monomer - Answer small molecule that is a single

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Topic 1- A Level Edexcel Biology B sudy gide e

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Topic 1- A Level Edexcel Biology B Sudy Gide E

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Topic 1- A Level Edexcel Biology B
study guide elaborated correctly.

hydrogen bonds - Answer weak electrostatic intermolecular bonds
formed between polar molecules containing at least one hydrogen
atom

monomer - Answer small molecule that is a single unit of a larger
molecule called a polymer

polymer - Answer long chain molecule made up of many smaller
repeating monomer units joined together by chemical bonds

,macromolecule - Answer very large molecule formed by polymerisation

starch - Answer energy store in plants made of amylose and
amylopectin. Insoluble and compact and can be broken down rapidly to
release glucose

sucrose - Answer sweet tasting disaccharide formed by the joining of a
glucose and fructose by a glycosidic bond

glucose - Answer hexose sugar

triose sugar - Answer sugar with 3 carbon atoms and important in
mitochondria

pentose sugar - Answer sugar with 5 carbon atoms and important in
nucleic acid

ribose - Answer pentose sugar that makes up part of the structure of
RNA

deoxyribose - Answer pentose sugar that makes up part of the
structure of DNA

, deoxyribonucleic acid - Answer nucleic acid that acts as the genetic
material in many organisms

ribonucleic acid - Answer nucleic acid which can act as the genetic
material in some organisms and is involved in protein synthesis

hexose sugar - Answer sugar with 6 carbon atoms and taste sweet

isomers - Answer molecules that have the same chemical formula, but
different molecular structures

nitrate ions (NO3)- - Answer needed in plants for formation of amino
acids and DNA

phosphate ions (PO4)3- - Answer forms ATP, ADP, DNA and RNA

calcium ions (Ca)2+ - Answer forms calcium pectate for middle lamella
between cell walls

magnesium ions (Mg)2+ - Answer produces chlorophyll in plants

water- polar solvent - Answer ionic substances dissolve in it and can
carry other substances

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Exam (elaborations) ·

Exam (elaborations)

Topic 1- A Level Edexcel Biology B study guide elaborated correctly. hydrogen bonds - Answer weak electrostatic intermolecular bonds formed between polar molecules containing at least one hydrogen atom monomer - Answer small molecule that is a single

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