Science Lesson 2 Flashcards

Nutrients, Macro-nutrients, Metabolism

1
Q

Which of the following are classified as macronutrients?

A

Carbohydrates, proteins, fats, water, and air

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2
Q

Which macronutrient is a primary source of energy for our cells?

A

Carbohydrates

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3
Q

The constituents of proteins are called ________________________ and are the building blocks of life.

A

Amino Acids

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4
Q

What macronutrient acts as a solvent for chemical reactions and transports dissolved compounds into and out of cells?

A

Water

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5
Q

_______________________ breaks glucose into carbon dioxide, water, and adenosine triphosphate, which supplies the energy needed for other chemical reactions.

A

Oxygen

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6
Q

These types of carbohydrates contains one or two sugars that are released and digested very quickly and tend to spike the blood sugar.

A

Simple carbohydrates

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7
Q

All of the following are classified as monosaccharides EXCEPT:

A

Debose

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8
Q

Oligosaccharides have all of the following functions EXCEPT:

A

Form proteins

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9
Q

________________________ forms a gel-like material when it is exposed to water, which slows the movement of food through the digestive tract.

A

Soluble fiber

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10
Q

________________________ is a measure of how quickly blood sugar levels rise after eating a certain food. Fifty-five or less is considered low, while 70 or more is high.

A

Glycemic index

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11
Q

_________________________ is/are never fully absorbed in the small intestine and traverses to the large intestine where intestinal bacteria ferment it.

A

Resistant starch

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12
Q

_________________________ strengthen cells. For instance, collagen makes up 25 percent of the body’s total protein, and it strengthens bones and connective tissue.

A

Structural proteins

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13
Q

__________________________ are proteins that break molecules down to be absorbed by the body. Without these proteins, metabolic processes would happen too slowly and we would die.

A

Enzymes

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14
Q

A good estimate to determine protein needs is to multiply your weight in pounds by ______________ to get the amount of protein in grams you should have daily.

A

0.36

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15
Q

True or False: Nearly all vegetables, grains, nuts and seeds contain protein.

A

True?

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16
Q

A protein deficiency can cause which of the following?

A

Kwashiorkor

17
Q

Which of the following are plant-based sources of protein?

A

Peas, Chia Seeds, Quinoa, Broccoli

18
Q

______________________ are the building blocks of fat.

A

Fatty acids

19
Q

______________________ are formed during bacterial fermentation of carbohydrates in the colon.

A

Short-chain fatty acids

20
Q

Omega-3 and omega-6 fatty acids are examples of ____________________________?

A

Polyunsaturated fats

21
Q

True or False: There are no recommended dietary allowances set for fat intake.

A

True

22
Q

All of the following are true regarding water EXCEPT:

A

Our body is made up of 90 percent water.

23
Q

What is the general rule of thumb for water intake?

A

Weight (in pounds) divided by 2 of ounces of water per day.

24
Q

__________________________ water filters do not allow bacteria thrive and trap more toxins than other types of filters.

A

Solid carbon

25
Q

True or False: Outdoor air is generally more polluted than indoor air.

A

False

26
Q

Which is the following is NOT a purpose of metabolism:

A

Creates nitrogenous waste products.

27
Q

These are known as the starting chemicals before a chemical reaction:

A

Reactants

28
Q

Which of the following describes the metabolism of fats, proteins and carbohydrates?

A

Fats to Fatty Acids, Carbohydrates to Glucose, Proteins to Amino Acids