AS Biology Metabolism
AS Biology - Unit 1
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Metabolism
Metabolism is a term to describe all reaction which is taking place within a cell and is separated into two types which are * anabolic = compounds being built up * catabolic = compounds being broken down
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Water
The water molecule is a molecule which is made up from 2 hydrogen atoms and 1 oxygen atom. It is bounded by 2 covalent bonds and has is polar.
The reason why water molecules are important for living organisms are because: 1. They are important solvents since they are polar 2. Important coolants for excessive metabolic reactions 3. Important for insulation since they have high specific heat capacities …show more content…
It is a very good mechanism for transport since they are highly cohesive 5. Important reagents for chemical reactions ( such as hydrolysis and photosynthesis )
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Carbohydrates
Separated into 3 types which are monosaccharides, disaccharides and polysaccharides
Monosaccharides
* they are three main types of monosaccharides which you have to know in this level which are
Pentoses - Such as ribose (with formula C5H10O5) and fructose
Hexose - Such as alpha and beta glucoses * All members of monosaccharides are reducing since they have the aldehyde groups, therefore they will cause a brick red precipitate to form when tested with Benedict’s solution.
Disaccharides * You would need to know 3 types of disaccharides in this level which
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Metabolism
Metabolism is a term to describe all reaction which is taking place within a cell and is separated into two types which are * anabolic = compounds being built up * catabolic = compounds being broken down
-------------------------------------------------
Water
The water molecule is a molecule which is made up from 2 hydrogen atoms and 1 oxygen atom. It is bounded by 2 covalent bonds and has is polar.
The reason why water molecules are important for living organisms are because: 1. They are important solvents since they are polar 2. Important coolants for excessive metabolic reactions 3. Important for insulation since they have high specific heat capacities …show more content…
It is a very good mechanism for transport since they are highly cohesive 5. Important reagents for chemical reactions ( such as hydrolysis and photosynthesis )
-------------------------------------------------
Carbohydrates
Separated into 3 types which are monosaccharides, disaccharides and polysaccharides
Monosaccharides
* they are three main types of monosaccharides which you have to know in this level which are
Pentoses - Such as ribose (with formula C5H10O5) and fructose
Hexose - Such as alpha and beta glucoses * All members of monosaccharides are reducing since they have the aldehyde groups, therefore they will cause a brick red precipitate to form when tested with Benedict’s solution.
Disaccharides * You would need to know 3 types of disaccharides in this level which