Carbohydrates

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What is the definition of carbohydrates?

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1

What is the definition of carbohydrates?

A class of nutrients containing carbon, hydrogen, and oxygen atoms, most commonly known as sugar, starches or dietary fibers

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2

What is fiber?

A type of carbohydrate that is indigestible and cannot be broken down by human digestive enzymes

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3

What do carbohydrates do for the body?

  • nourish the brain and nervous system

  • Provide energy to all of your cells

  • Help keep your body fit and lean

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4

What do digestible carbohydrates do?

Provide bulk in foods, vitamins, and minerals

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5

What do indigestible carbohydrates do?

Provide a good amount of fiber

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6

What is the fast-releasing carbohydrate?

Glucose

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7

What do plants use glucose for?

Plants use glucose to make other larger, more slow-releasing carbohydrates.

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8

What is the composition of Carbohydrates?

A group of organic compounds containing a ratio of one carbon atom to two hydrogen atoms to one oxygen atom

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9

What is the simplest unit of carbs?

Monosaccharides

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10

What are the two subgroups of carbs?

  • simple ( fast- releasing)

  • Complex ( slow- releasing)

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11

What are simple carbohydrates?

Known as sugars that contain monosaccharides and disaccharides

  • simple carbon stimulate the sweetness taste

  • Fructose is the top naturally-occurring in sweetness value

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12

What are complex carbohydrates?

  • long chains of monosaccharides

  • Known as large sugar molecules linked together in straight or branched chains that include starches and fibers

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13

What do monosaccharides include?

Glucose, fructose, and galactose

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14

What is fructose?

A 6 carbon monosaccharide arranged in a ring structure that is found in fruits and honey

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15

What is galactose?

A 6-carbon monosaccharide arranges in a ring structure part of the disaccharide lactose

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16

What are the types of disaccharides?

Lactose, maltose, and sucrose

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17

What is lactose?

A disaccharides made of glucose linked to galactose found in milk

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18

What is maltose?

A disaccharide made up of two glucose molecules linked together

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19

What is sucrose?

A disaccharide made of glucose linked to fructose and commonly known as table sugar

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20

What are complex carbohydrates?

Polysaccharides- a carbohydrate made up of sugar molecules linked together

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21

What are the two main polysaccharides?

Starches and fibers

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22

What is starch?

A complex carb that is found in plants and made up of glucose molecules linked together in a straight or branched structure

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23

What foods are abundance in starch?

Grains, legumes, and root vegetables ( potato’s)

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24

What is Amylose?

  • a plant starch

  • A form of starch composed of glucose units joined into unbranded chains

  • Form crystals and are energy-storing molecules of plants

  • Less abundant

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25

What is Amylopectin?

  • plant starch

  • forms of starch composed of linked branched chains of glucose units

  • Energy storing molecules of plants

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26

Eating raw foods containing starches provides little energy

True

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27

Cooking breaks down the crystal structure of starches, making them much easier to break down in the human body

True

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28

What are resistant starches?

Starches that remain intact throughout digestion, bacteria in the gut can break down some of these down ad may benefit gastrointestinal health

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29

What is glycogen?

The storage form of complex carbs composed of multiple units of glucose linked together in a highly branched structure

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30

What is dietary fiber?

  • polysaccharides that are highly branched and crossed liked

  • Pectin, gums, cellulose, hemicellulose, and lignin

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31

Can humans produce enzymes that can break down dietary fiber?

No, humans can not, but there is bacteria in the colon can

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32

Is dietary fiber valuable for our health?

Yes it is

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33

What happens when someone has a diet with high fiber?

They can reduce the risk of obesity and diabetes and cardiovascular disease

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34

What are the classifications of Dietary fiber?

Water soluble or insoluble

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35

What are some examples of water soluble fibers?

Inulin, pectin, guar gum

Peas, beans, oats, barley, and rye

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36

What are some examples of insoluble fibers?

Cellulose ( most abundant in plants, making up the walls and providing structure) Lignin

Whole-grain foods, flax, cauliflower, and avocados

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37

What is functional fiber

Non digestible forms of a carbs that have been extracted by starchy foods and added to another processed foods.

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38

What do functional fibers do?

Functional fibers may be extracted from plants and purified or synthetically made

  • can reduce blood- cholesterol levels and this health had been proved by the FDA

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39

What is total dietary fiber?

Is the sum of dietary fiber and functional fiber consumed

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