Carbohydrates Flashcards

(34 cards)

1
Q

why are carbohydrates important to the body

A

they are a major source of energy

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2
Q

what’s the composition of a carbohydrate

A

1 carbon atom : 1 water molecule

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3
Q

what are the 2 types of simple carbohydrates

A

monosaccharides and dissaccharides

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4
Q

what’s the formula of a monosaccharide

A

C6H12O6

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5
Q

what are the 3 types of monosaccharides

A

glucose, fructose, galactose

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6
Q

wheres glucose found

A

in animals and plants

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7
Q

wheres fructose found

A

in fruit and honey

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8
Q

wheres galactose found

A

in milk and other dairy products

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9
Q

whats a disaccharide

A

2 monosaccharides joined together

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10
Q

what’s the formula for a disaccharide

A

C12H22O11

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11
Q

why is the formula for a disaccharide not just double the formula of a monosaccharide

A

because when you put the two molecules together, enzymatic dehydration process occurs which means you lose a water molecule (2 hydrogens and 1 oxygen)

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12
Q

whats enzymatic dehydration

A

the loss of a water molecule due to the presence of an enzyme resulting in the combination of 2 monosaccharides to form 1 disaccharide

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13
Q

what are the 3 types of disaccharides

A

maltose, sucrose, lactose

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14
Q

what monosaccharide combination makes maltose

A

glucose + glucose

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15
Q

what monosaccharide combination makes sucrose

A

glucose + fructose

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16
Q

what monosaccharide combination makes lactose

A

glucose + galactose

17
Q

whats a complex carbohydrate called

A

a polysaccharide

18
Q

whats a polysaccharide

A

basically long chains of sugar where many. monosaccharide and disaccharide molecules are linked together

19
Q

what are the common polysaccharides in plants

A

starch and cellulose

20
Q

what’s the purpose of starch and cellulose in plants

A

they store sugar in these forms

21
Q

what’s the common polysaccharide in animals

22
Q

what is glycogen made of

A

2000-3000 monosaccharides joined together

23
Q

what’s the opposite of enzymatic dehydration

A

enzymatic hydrolysis

24
Q

whats enzymatic hydrolysis

A

the addition of a water molecule and enzyme to digest disaccharides and polysaccharides

25
what enzyme digests maltose and what does it split it into
maltase enzyme + a water molecule splits maltose into glucose + glucose
26
what enzyme digests sucrose and what does it split it into
sucrase enzyme + water molecule splits sucrose into glucose + fructose
27
what enzyme digests lactose and what does it split it into
lactase enzyme + water molecule splits lactose into glucose + galactose
28
whats a nutrient
any substance that has a useful function when taken into the body cells
29
what are the two types of nutrients
necessary nutrients and essential nutrients
30
whats a necessary nutrient
a nutrient that the body can make by rearranging certain chemicals if it's not in the diet
31
whats an essential nutrient
a nutrient that cannot be made by the body and must be acquired from an external source
32
what are the two types of nutrition
heterotrophic and autotrophic
33
whats heterotrophic nutrition
when the organisms can not manufacture their own good and therefore must consume it
34
whats autotrophic nutrition
when the organisms manufacture their own food