Carbohydrates Flashcards

1
Q

What are the monomers that make up carbohydrates called?

A

monosaccharides

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1
Q

What bonds hold polysaccaride together?

A

glycocidic bonds

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2
Q

What are examples of monosaccharides?

A
  1. glucose
  2. galactose
  3. fructose
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3
Q

What are the two isomers of glucose?

isomers = types

A
  • alpha
  • beta
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4
Q

What are some examples of disaccharides?

A
  • maltose
  • sucrose
  • lactose
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5
Q

what monosaccharides makes up maltose?

A

two glucose molecules

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6
Q

What monosaccharides make up sucrose?

A

glucose and fructose

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7
Q

What monosaccharides make up lactose?

A

glucose and galactose

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8
Q

What is the difference between the isomers of glucose?

A
  • alpha glucose is H over OH
  • beta glucose is OH over H
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9
Q

What are some examples of polysaccharide?

A
  1. glycogen
  2. starch
  3. cellulose
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10
Q

What makes up glycogen and starch?

A

alpha gluose

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11
Q

what makes up cellulose?

A

beta glucose

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12
Q

Describe the structure of glycogen.

A
  • highly branched
  • compact
  • insoluble
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13
Q

What is the affect of glycogen being highly branched?

A

it means that enzymes can act simultaneously, so energy can be released quickly

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14
Q

What is the function of glycogen?

A

It’s a main storage molecule for animals

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15
Q

What’s the formular for monosaccharides?

A
  • (CH2O)n
  • n = any number from 3-7
16
Q

What is the affect of glycogen being compact?

A

it maximises the amount of energy that can be stored

17
Q

What is the affect of glycogen being insoluble?

A
  • it can’t affect water potential of cells
  • can’t diffuse out of cells
18
Q

What is the function of starch?

A

stores energy in plants

19
Q

What polysaccharides make up starch?

A
  1. amylose
  2. amylopeptin
19
Q

Describe the structure of amylose.

A
  • unbranched
  • coiled
20
Q

How does amylose’s structure adapt starch for it’s function?

A

it being coiled makes it compact which means that the amount of energy that can be stored is maximised

21
Q

Describe the structure of amylopeptin.

A

it is branched

22
Q

How does amylopeptin’s structure adapt starch for it’s function?

A

it means that enzymes can act simultaneously, so energy can be released quickly

23
What are the properties of starch?
* insoluble * compact * made up of alpha glucose
24
What is the affect of starch being insoluble?
means that it won't affect plant cell's water potential
25
What is the affect of starch being compact?
it means a large amount of energy can be stored in a small space
26
What is the affect of starch being made of alpha glucose?
it means that when starch is hydrolysed, alpha glucose is produced which can be easily transported
27
Describe the structure of cellulose.
* long * unbranched
28
What is the function of cellulose?
stops the cell wall of plants from bursting under the pressure caused by osmosis
29
How does cellulose stop the cell wall from bursting?
* it exerts inward pressure which stops in the influx of water * this makes the plant cell rigid and turgid, which maxamises SA for photosynthesis