Chapter 4 (Section A) Flashcards

1
Q

A simple sugar made up of 6 carbons, 12 hydrogens, and 6 oxygens that provide energy for the body

A

glucose

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2
Q

Organic molecules used primarily for energy

A

carbohydrates

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3
Q

Carbs protect ______ _____ from being catabolized during exercise and they provide the main energy source for the _________ and __________ ___________.

A

muscle mass; brain and nervous system

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4
Q

One glucose molecule can produce how many molecules of ATP?

A

30

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5
Q

two types of carbohydrates

A

simple and complex

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6
Q

The four different types of carbohydrates based on the number of sugar units:

A

monosaccharides, disaccharides, oligosaccarides, and polysaccharides

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7
Q

consist of one sugar unit

A

monosaccharide

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8
Q

monosaccharide examples (4)

A

glucose, galactose, mannose, and fructose

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9
Q

consist of two sugar units

A

disaccharides

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10
Q

Disaccharide examples and composition

A

sucrose (one glucose and one fructose), and lactose (one glucose and one galactose)

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11
Q

a simple sugar found mostly in fruits

A

fructose

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12
Q

the energy source of plants; a polysaccharide consisting of multiple molecules of bonded glucose

A

starch

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13
Q

a polymer of fructose molecules found in some fruits, legumes, and vegetables

A

fructan

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14
Q

What explains the slower rise in blood sugar after eating fructose

A

fructose has to be further broken down by the liver into glucose before being used by most cells in the body

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15
Q

two main types of complex carbohydrate

A

oligosaccharises and polysaccharides

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16
Q

two types of simple carbohydrates

A

mono and di saccharides

17
Q

complex carb with 3 to 10 sub-units of sugar; two examples

A

oligosaccharides; raffinose and statchyose

18
Q

complex cabs that have 10 or more monosaccharide sub-units linked together; three examples

A

polysaccharides; amylose, amylopectin, and glycogen

19
Q

composed of amylopectin and amylose

A

starch

20
Q

special type of complex carb that is not digested and not absorbed in the small intestine (two terms)

A

fiber or non starchy roughage

21
Q

Eight examples of fiber

A

cellulose, hemicellulose, pectin, fructans, beta-glucans, and a variety of gums, mucilage, and algal polysaccharides

22
Q

Two functions of fiber

A

promotes intestinal function and aids in the absorption of nutrients into the bloodstream.

23
Q

Two types of fiber

A

soluble and insoluble

24
Q

type of fiber that dissolves in fluids in the stomach to form a thick gel like substance

A

soluble fiber

25
Q

How many calories are in soluble fiber

A

2

26
Q

does not dissolve in water and passes through the GI tract relatively intact

A

insoluble fiber

27
Q

(3) Characteristics of soluble fiber:

A

broken down by bacteria in the large intestine, interferes with the absorption of dietary fat and cholesterol, slows digestion and helps to prevent rapid spikes in blood glucose after eating

28
Q

How many calories are in a gram of insoluble fiber?

A

0

29
Q

Two characteristics of insoluble fiber:

A

Provides bulk for stool and speeds up the movement of food and waste through the digestive system

30
Q

Both types of fiber promote what:

A

satiety

31
Q

People who eat high fiber diets experience reduced rates of (3):

A

Cardiovascular disease, colon cancer and diabetes

32
Q

the specific and individualized accumulation of anaerobic bacteria and other microorganisms that populate the gastrointestinal tract

A

gut microbiome