AQA AS level Biology Exam Questions and
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Terms in this set (464)
Atoms share a pair of electrons in their outer shells,
Covalent bonding
forming a more stable compound, a molecule
Ions with opposite charges attract one another
Ionic bonding
forming a bond
In polar molecules, the negative region of one
polarised molecule and the positive region of another
Hydrogen bonding
attract each other forming a weak electrostatic bond
between the two
Polarised (a polar A molecule with uneven distribution of charge
molecule)
All chemical reactions that take place in living
Metabolism
organisms
Mole SI unit for measuring the amount of substance
Contains the same number of particles as there are in
One mole
12g of carbon-12 atoms
Avogadro's constant
Molar solution Contains one mole of a solute in each litre of solution
, Carbohydrates Molecules made up of carbon, hydrogen and oxygen
Organic molecule Molecules containing carbon
A small molecule that combines with other monomers
Monomer
to form polymers
Polymer A molecule made up of monomers
Monosaccharide A single monomer of a carbohydrate
Disaccharide A pair of monosaccharides joined together
Polysaccharides Many monosaccharides joined together
Monosaccharide general
formula
Glucose
Monosaccharides Galactose
Fructose
Alpha glucose
Beta glucose
A sugar that can donate electrons to another
Reducing sugar
chemical
Benedict's test Test for reducing sugars
Maltose Glucose-Glucose
Sucrose Glucose-Fructose
Lactose Glucose-Galactose
Answers
Save
Terms in this set (464)
Atoms share a pair of electrons in their outer shells,
Covalent bonding
forming a more stable compound, a molecule
Ions with opposite charges attract one another
Ionic bonding
forming a bond
In polar molecules, the negative region of one
polarised molecule and the positive region of another
Hydrogen bonding
attract each other forming a weak electrostatic bond
between the two
Polarised (a polar A molecule with uneven distribution of charge
molecule)
All chemical reactions that take place in living
Metabolism
organisms
Mole SI unit for measuring the amount of substance
Contains the same number of particles as there are in
One mole
12g of carbon-12 atoms
Avogadro's constant
Molar solution Contains one mole of a solute in each litre of solution
, Carbohydrates Molecules made up of carbon, hydrogen and oxygen
Organic molecule Molecules containing carbon
A small molecule that combines with other monomers
Monomer
to form polymers
Polymer A molecule made up of monomers
Monosaccharide A single monomer of a carbohydrate
Disaccharide A pair of monosaccharides joined together
Polysaccharides Many monosaccharides joined together
Monosaccharide general
formula
Glucose
Monosaccharides Galactose
Fructose
Alpha glucose
Beta glucose
A sugar that can donate electrons to another
Reducing sugar
chemical
Benedict's test Test for reducing sugars
Maltose Glucose-Glucose
Sucrose Glucose-Fructose
Lactose Glucose-Galactose
