FOOD Flashcards

1
Q

why do we obtain raw materials?

A

for growth and maintenance

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2
Q

nutrients are the chemicals that organism needs in order to what?

A

grow
build
repair tissues
make energy

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3
Q

What nutrients do we need to stay healthy?

A

carbohydrates
fats
proteins
water
minerals and vitamins

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4
Q

nutrients provide energy that fuels____?

A

all biological processes

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5
Q

how do humans obtain energy

A

by consuming plant and animal based food

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6
Q

What do cells use chemical energy for?

A

to fuel biological processes like growth and movement

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7
Q

why do endothermic animals need more energy?

A

To keep their bodies warm
(warm blooded)

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8
Q

In order to stay alive, your body performs different chemical reactions → These are all known as ?

A

METABOLISM

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9
Q

what is metabolism made up of?

A

CATABOLISM & ANABOLISM

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10
Q

what is catabolism?

A

metabolic reactions that breaks down molecules

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11
Q

What is anabolism?

A

the building of larger molecules

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12
Q

What is metabolic rate?

A

our body converts stored energy into working energy

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13
Q

What are factors that affect metabolic rate?

A

body size
physical activity
sex
age
genetic

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14
Q

What is basal metabolic rate ?

A

energy needed to stay alive

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15
Q

What are carbohydrates made up of ?

A

carbon
hydrogen
oxygen

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16
Q

What are the three types of carbohydrates

A

monosaccharides
disaccharides
polysaccharides

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17
Q

are carbohydrates are main source of energy

A

yes

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18
Q

what is monosaccharides and example

A

-single sugars
-glucose , fructose, galactose
Glucose is needed for cellular respiration

19
Q

What is glucose needed for ?

A

cellular respiration

20
Q

What are Disaccharides? and example

A

double sugars result of 2 monosaccharides joining together

maltose and sucrose

21
Q

What are polysaccharides and example? what are they used for

A

3 or more monosaccharides together

used for energy storage in plants (starch) and in animals (glycogen)

Need to be digested before absorbing

example chitin in exoskeleton of insects, cellular in plant wall

22
Q

what are sources of carbohydrates?

A

bread
Fruit
Grains

23
Q

how much of an individuals energy does carbohydrates provide?

24
Q

where are carbohydrates stored in humans and what are they stored as?

A

In the liver as glycogen

25
what happens when you reach the maximum amount of glycogen storage?
The carbohydrates/glycogen are turned into lipids and stored as fats
26
When energy is needed what is glycogen turned into?
Glucose
27
what do protiens do
-Help chemical reactions take place -Repair the cell -Transport materials around the body
28
what do some proteins serve as? and give examples of proteins
Hormones example , amylase , lipase, hair
29
what are proteins made out of?
Amino acids
30
What are lipids?
Source of chemical energy for the body
31
what are lipids made out? and what is it bonded to
3 fatty acids bonded to a glycerol molecule called triglyceride
32
can Triglycerides be saturated or unsaturated?
Yes
33
What are saturated fats and unsaturated fat?
saturated fats are solid at room temp unsaturated fats are liquid at room temp
34
What is an essential fatty acid/m?
Omega-3 prevent heart diseases and , arthritis
35
How much water should you drink a day?
2 L
36
what are vitamins?
Compounds an organism needs as a nutrient in small amounts
37
which vitamins are fat soluble in which ones are water soluble?
fat soluble, vitamins, ADEK Water soluble, vitamin B and C
38
what are minerals?
Natural elements our body uses to carry out metabolic processes repair tissues.
39
what is iron a component of?
Hemoglobin
40
How many amino acids are there?
20 amino acids 12 made by our body The other 8 is from our diet called essential amino acid
41
how much should a energy come from protein?
10 to 30%
42
what is water needed for?
Chemical reactions help digest food maintain blood volume Regular blood temperature
43
What are calcium and phosphorus critical in?
Bone formation