science Flashcards

1
Q

what are nutrients?

A

molecules in food that provide the body with energy and materials essential for growth and development

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2
Q

bodys main source of energy

A

carbohydrates

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3
Q

building blocks of proteins

A

amino acids

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4
Q

molecule made out of amino acids

A

proteins

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5
Q

what are the 10 amino acids

A

arginine, histidine, methionine, tryptophan, leucine, phenylalanine, threonine, valine, lysine, and isoleucine

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6
Q

whats deficiency

A

inability of certain enzymes or hormones to be synthesized

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7
Q

foods that are rich in protein

A

meat, fish, egg, milk, seeds, and nuts

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8
Q

children whose diets are deficient in proteins may develop a disease called?

A

kwashiorkor

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9
Q

the recomended daily amount of protein for an average adult

A

0.36 grams or 50 to 100 grams per day

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10
Q

children that has kwashiorkor develop a

A

swollen abdomens and scaly, cracked skin, delay brain development and decrease cognitive function

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11
Q

also another energy providing foods

A

fats

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12
Q

helps reatain body tempt and cushion internal organs

A

fats

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13
Q

too much fat

A

atherosclerosis

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14
Q

this can be stored in the fats of the body

A

fat - soluble vitamins

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15
Q

complex organic molecules needed in small amounts and cannot be manufactured by the human body

A

vitamins

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16
Q

cannot be stored in the body and must be obtained by eating vitamin-rich foods

A

water - soluble vitamins

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16
Q

foods rich in vitamins

A

fruits, vegetable (green and yellow), grains,meat

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17
Q

fat soluble vitamis

A

A, D, E, K

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18
Q

foods rich in fats

A

butter, cheese, fatty meat, nuts, fish liver

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19
Q

inorganic substances that do not provide energy but are important for different body functins

A

minerals

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20
Q

minerals

A

calcium, sodium, chlorine, phosphorus, potassium, iron

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21
Q

humans and mammals are made up of about how many percent of water?

A

70% water

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22
Q

how many liters do a normal adult should drink every day

A

3 liters

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23
Q

the ____ breaks down food into simpler nutrients that can be absorbed by the body

A

the digestive system

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24
consumption of food from these sources and the processes that convert food substances into living matter known as _____
nutrition
25
mode of feeding found in animals is known as ______
holozoic nutrition
26
intake of food
ingestion
27
broken down into simpler molecules that can be absorbed by the body cell
digestion
28
transport and use of absorbed nutrients
assimilation
29
food materials are absorbed by the body cells
absorption
30
removal of undigested material out
ELIMINATION
31
food is broken down into nutrients through a process called ____
digestion
32
this is where solid food is broken down into small pieces by the chewing action of teeth
mouth
33
common passage for food and air
pharynx
34
to carry what is eaten
esophagus
35
two layers of muscles cause ryhtmic wavelike contractions of the wall of the gut
peristalsis
36
j shaped organ/ churn the food into sloppy soup
stomach
37
dilute solution of hydrochloric acid and pepsin
gastric juice
38
an active enzyme secreted by the cells of the gasrtic glands
pepsin
39
acidic liquid mixture
chyme
40
the stomach is connected to the small intestine by a muscular valve called ____
pyloric sphincter
41
process by which digested food materials are absorbed by the cells
food absoprtion
42
3 parts of the small intestines
duodenum, jejunum, ileum
43
tiny fingerlike structures
villi
44
undigested food leaves the small intestine and enters the _______
large intestine
45
what are the alimentary canal or digestive tract
mouth, esophagus, stomach, small and large intestine, pharynx, anus
46
accessory organs
pancreas, liver, gallblader, salivary glands, teeth and tongue
47
excess fat is stored in special tissues called
adipose tissues
48
second largest organ and the largest gland in the human body
liver
49
a greenish yellow alkaline liquid containing bile salts and bile pigments
bile
50
where is the bile stored, where is it attached
a greenish yellow bag attached to the liver called esophagus
51
control of the blood sugar level in the body and in the utilization of carbohydrates
insulin
52
development of diseases of the digestive system known as
gastrointestinal disease
53
occurs when the lining of the large intestine cannot maintain the usual level of water absorption
diarrhea
54
how can you prevent diarrhea
proper handwashing
55
stool moves too slowly in the colon, this happens when the colon reabsorbs too much water
constipation
56
inflammation of the liver caused by excessive consumption of alcohol or by a vital infection
hepatitis
57
caused by the hepatitis virus HAV and is contracted through exposure to water or food contaminated with fecal matter
Hepatitis A / infectious hepatitis
58
caused by the hepatitis b virus HBV and is tranmitted through transfusions of contaminated blood, sharing of contaminated needles or sexual contact with an infected individual
Hepatitis b or serum hepatitis
59
hepatitis can be prevented through what
vaccination
60
these are cyrstals formed when there is too much cholesterol, blie slates, and calcium in the gallbladder
gallstones
61
how can you get rid of gallstones
dissolution therapy(medecines are used), and surgical removal of gallstone are next option
62
inflammation of the appendix
appendicitis
63
you can remove appendicitis by
surgical removal of the appendicitis
64
these are open sores found in the esophagus (esophageal ulcer), stomach (gastric ulcer), and duodenum of the small intestine (duodenal ulcer)
peptic ulcer
65
this is also known as piles, occur when rectal veins become inflamed and enlarged as a result of straining to eliminate hard stool
hemorrhoids