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MCBG > Nutrition, Diet And Body Weight > Flashcards

Nutrition, Diet And Body Weight Flashcards

1
Q

What is the definition of metabolism?

A

Chemical processes that occur within a living organism in order to maintain life

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2
Q

What is catabolic?

A

Break down molecules to release energy in the for of reducing power

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3
Q

What is anabolic?

A

Use energy and raw materials to make larger molecules for growth and maintenance

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4
Q

What is energy?

A

The capacity to do work

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5
Q

What is energy required for?

A

Biosynthetic work
Transport work
Mechanical work
Electrical work

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6
Q

Where is glycogen stored?

A

Liver - plasma glucose acts as buffer

Skeletal muscle - used for muscle contraction

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7
Q

What are the different sizes of carbohydrates?

A

Monosaccharides - single sugar units
Disaccharides
Oligosaccharides - 3-12 units
Polysaccharides - 10-1000’s units

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8
Q

What is starch, sucrose, lactose, fructose, glucose, maltose and glycogen?

A 
Starch - poly of glucose
Sucrose - di of glucose and fructose
Lactose - di of galactose and glucose
Fructose - mono
Glucose - mono
Maltose - di of glucose
Glycogen - poly of glucose
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9
Q

What is the problem with using protein as energy?

A

It produces ammonia which is toxic o it is converted to urea and excreted

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10
Q

What are the 9 essential amino acids?

A 
Isoleucine
Leucine
Threonine
Histidine
Lysine
Methionine
Phenylalanine
Tryptophan
Valine
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11
Q

What is DRV?

A

Dietary reference values

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12
Q

What is RNI?

A

Reference nutrient intake (for protein, vitamins, minerals)

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13
Q

What is EAR?

A

Estimated average requirement (for energy)

Covers 50% of people

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14
Q

What is LRNI?

A

Lower reference nutrient intake

Covers 97.5% of people

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15
Q

How many kJ does the average male and female need in a day?

A

Male - 12,000 kJ

Female - 9500 kJ

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16
Q

What is the basal metabolic rate?

A

Maintains resting activities of the body
Maintenance of cells
Functions of organs
Maintaining body temperature

17
Q

What are the factors that affect basal metabolic rate?

A 
Body size
Gender
Environmental temperature
Endocrine status
Body temperature
18
Q

How do you calculate BMI?

A

BMI = weight (kg)/height^2 (m^2)

Kg/m^2

MCBG (20 decks)

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