Extra info that i forgot to put in flashcards Carbs
metabolism
all chemical process that take place in are collectively known as metabolism
monosaccharide features
sweet-tasting, soluble general formula of (CH20)n’ n can be any number form 3-7
Benedict’s reagent how much food
how long heated
and if food is not in liquid form
2cm cubed of food
5 mins heated
grind food up
The difference in colour of solution means of benedict’s test
means the test gives what type of results
semi -quantitively a it can be used to guess the amount of reducing sugar in a sample
iodine test
put 2cm in a test tube
Where is starch commonly found in plants
seeds and storage organs
starch one chain is very compact what makes it compact
its coiled
why are starches why are oh pointed inwards
Form hydrogen bonds to keep helix in place
Why is it good that starch is large and insoluble
it doesn’t diffuse out of cells
What does starch form when it is hydrolysed and why this this good
forms alpha glucose which is easily transported and readily in respiration
the branched form of starch has many ends why is this good
Can be acted on by enzymes simultaneously meaning glucose monomers are released rapidly
Why is starch insoluble
it doesn’t effect water potential so water isnt drawn in
glycogen is highly branched so
and why is this important to animals
has more ends enzymes can simultaneously therefore it is rapidly broken down into glucose monomers which are used in respiration
this is more important for animals to have a high metabolic rate and therefore respiratory due to them being more active
The cellulose chain unlike starch has
straight chains unbranched with adjacent beta glucose molecules flipped 180 degrees this allows hydrogen bonds between oh groups on adjacent glucose molecules to give it structural stability
and they also cellulose molecules group together to form microfibrils
