Unit 7D Flashcards

0
Q

Digestive tract

A

A series of tubelike organs that are joined end to end

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1
Q

Digestive system

A

A collection of organs that work together to digest food so that it can be used by the body

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2
Q

What three things does food not go through

A

Liver, gallbladder, and pancreas

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3
Q

Mechanical digestion

A

The breaking, crushing, and mashing of food

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4
Q

Chemical digestion

A

Large molecules are broken down into nutrients

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5
Q

Organic molecules contain…

A

Carbon hydrogen oxygen

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6
Q

Examples of simple carbs

A

Fruits, milk, veggies

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7
Q

Carbohydrates involve short term____

A

Energy storage- fast fuel

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8
Q

Examples of lipids

A

Fats,oils, waxes

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9
Q

Lipids are broken down into…..

A

Fatty acids and glycerol

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10
Q

What are the 4 types of organic molecules

A

Carbohydrates
Lipids
Proteins
Nucleic acids

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11
Q

Lipids are _____ term energy storage

A

Long

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12
Q

One gram of fat=

A

9 calories

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13
Q

Lipids are more than ____ times the amount of carbs

A

2 times

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14
Q

What are proteins broken down into

A

Amino acids

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15
Q

Proteins are the most ______ and ____ organic molecules

A

Complex;diverse

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16
Q

Nucleotides contain…

A

1 phosphate, 1 sugar, 1 base

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17
Q

Saliva

A

A liquid that contains enzyme that begins the chemical digestion of carbohydrates

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18
Q

Esophagus

A

A long straight tube that connects the throat to the stomach

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19
Q

Peristalsis forces the _____ into the ________

A

Food; stomach

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20
Q

Stomach

A

Muscular bag like organ attached to the lower end of the esophagus

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21
Q

What does mucus cover?

A

Stomachs lining

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22
Q

Stomach acid kills most ________

you might swallow while eating

23
Q

Chyme

A

Soupy mixture of broken down food in the stomach

24
The smell of food causes _______ juices to be released which results in contractions and hunger
Gastric
25
Small intestine
2.5 cm in diameter and about 6 meters long
26
Villi
Finger like projections that are covered with tiny nutrient- absorbing cells
27
Pancreas
Fish- shaped organ located between stomach and small intestine
28
What does the pancreas make
Hormones that regulate blood sugar
29
Gallbladder
Small bag like organ that temporarily stores the bile made by liver
30
Liver
A large reddish brown organ that helps with digestion
31
Large intestine
The organ of the digestive system that stores, compacts, and eliminates indigestible food from the body
32
How big is the large intestine
1.5 cm wide, 7.5 cm long
33
Cellulose
A carbohydrate found in whole grains, | Fruits, and veggies that humans can't digest. Aka fiber
34
All of these organs work together to maintain ___________
Homeostasis
35
What are sphincters
Bands of muscle that block off the stomach at either side
36
Constipation
When bowl movements become difficult and less frequent
37
Diarrhea
Occurs when too little water is removed from digested food
38
Colon cancer
A serious disease of the digestive tract that can lead to death
39
Gastric ulcer
Open sore in stomachs lining
40
Symptoms of type 1 & type 2 diabetes
Too much glucose in the blood and not enough glucose in the blood cells
41
Heartburn
Back flow of chyme in the esophagus causes a burning pain in the chest
42
As your body performs that chemical activities that keep you alive, waste products such as ______ _______and ________ are produced
Carbon dioxide; nitrogen
43
Excretion
The process of removing wastes and excess products from the body
44
What are the 3 body systems involved in excretion
1. skin 2. lungs 3. urinary system(removes waste products from blood)
45
The digestive system is ___ involved in excretion because the term excretion is used only when substances must pass through a ________ in order to leave the body
Not;membrane
46
Kidney
Bean shape organ that constantly cleans the blood
47
Your kidneys filter how much blood each day
2000 L
48
Nephron
Microscopic filter in the kidney that removes a variety of harmful substances from the blood
49
Urine
A concentrated mixture of waste materials that forms in the nephrons of the kidney
50
Ureter
A slender tube and which urine leave the kidneys
51
Urinary bladder
A bag like organ that stores urine until it can be eliminated through the urethra
52
Urethra
A tube in which urine leaves the body
53
Urination
The process of expelling urine from the body
54
Bacterial infections in the bladder
Bacteria can get into the bladder and ureters through the urethra and cause painful infection
55
Kidney stone
Sometimes salt and waste collection inside the kidneys and form kidney stone
56
Kidney disease
Damage to nephrons can prevent normal kidney function, leading to kidney disease