Carbohydrates Flashcards

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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

A

glycogen

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
Q

what enzyme digests maltose and what does it split it into

A

maltase enzyme + a water molecule splits maltose into glucose + glucose

26
Q

what enzyme digests sucrose and what does it split it into

A

sucrase enzyme + water molecule splits sucrose into glucose + fructose

27
Q

what enzyme digests lactose and what does it split it into

A

lactase enzyme + water molecule splits lactose into glucose + galactose

28
Q

whats a nutrient

A

any substance that has a useful function when taken into the body cells

29
Q

what are the two types of nutrients

A

necessary nutrients and essential nutrients

30
Q

whats a necessary nutrient

A

a nutrient that the body can make by rearranging certain chemicals if it’s not in the diet

31
Q

whats an essential nutrient

A

a nutrient that cannot be made by the body and must be acquired from an external source

32
Q

what are the two types of nutrition

A

heterotrophic and autotrophic

33
Q

whats heterotrophic nutrition

A

when the organisms can not manufacture their own good and therefore must consume it

34
Q

whats autotrophic nutrition

A

when the organisms manufacture their own food