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Digestion
N/A
56
Biology
9th Grade
02/02/2012

Additional Biology Flashcards

 


 

Cards

Term
Four Types of Tissue
Definition

Connective Tissue

Epithelial Tissue

Muscle Tissue

Nervous Tissue

Term
Connective Tissue
Definition

One of the four types of tissue

Supports and connects

 

For example, bone, fat & blood cells

Term
Epithelial Tissue
Definition

One of four types of tissue

Interior and exterior lining

 

For Example: skin, lining of stomach

Term
How is the body organized?
Definition

Organs

&
Organ Systems

Term
Why do we need to eat?
Definition

1) Energy

2) Building blocks - food provides raw materials

Term
What nutrients do you need?
Definition

Water

 

Carbohydrates

 

Fats

 

Proteins

Term
Why do we need water?
Definition

Chemical reactions,

 

blood & body fluids,

 

temperature control

Term
Why do we need carbohydrates?
Definition

Source of energy

(sugars, starches, fiber)

Term
Why do we need fats?
Definition

To absorb vitamins

 

For cell structure

 

To provide insulation

 

To provide energy

Term
Why do we need proteins?
Definition

For growth & repair

 

enzymes

 

hormones

 

energy

Term
Vitamins
Definition

organic molecules needed in VERY small amounts

 

Vitamins A, D, E & K are fat soluble

 

Vitamins C & B are water soluble

Term
Minerals
Definition

inorganic nutrients neede in SMALL amounts

 

For example: calcium, phosphorous, iron, chlorine, sodium, potassium, magnisium, fluorine, iodine and zinc.

 

These minerals have various functions, such as blood clotting, bone and tooth formation, promotes nerve and muscle function, component of thyroid hormones, component of digestive enzymes.

Term
Balanced Diet
Definition
Diet that provides enough energy and nutrients to maintain a healthy weight.
Term
What happens if a diet is missing an essential nutrient?
Definition

Deficiency diseases such as:

 

scurvy

rickets

blindness

anemia

kwashiorkior

Term
Vegetarian diets
Definition
Must make sure to get enough protein!
Term
Proteins
Definition

made up of 20 amino acids

12 of which humans can produce

8 which we have to eat in foods like grains and beans.

 

MMix beans and grains for complete group of amino acids

Examples (rice and beans, or peanut butter and bread)

Term
Functions of the digestive system
Definition

ingest (take in food)

digest (break down food)

absorb (take in nutrients from food)

and eliminate (pass undigested material out of body)

Term
Two types of digestion
Definition

Mechanical  - physically chewing, breaking down food into smaller pieces

 

Chemical - breaking down molecules small enough to be absorbed into cells, use enzymes

Term
Mouth
Definition

mechanical and chemical digestion

 

Mechanical - breaks up food physically  - chewing

 

Chemical - saliva breaks down food

 

Term
Components of Saliva
Definition

amalase enzyme - digests starch

 

mucus - protects soft lining of digestive system & lubricates food for easier swallowing

 

buffers - neutralizes acid to prevent food decay

 

anti-bacterial chemicals - kill bacteria that enter the mouth with food

Term
Epiglottis
Definition

flap of cartilage

closes windpipe when swallowing

so food can travel down espohagus with help of peristalsis

Term
trachea
Definition
windpipe - where air goes when we breathe
Term
esophagus
Definition
tube where food goes down when we swallow
Term
peristalsis
Definition
involuntary muscle contractons to move food along
Term
Functions of the Stomach
Definition

churn food

disinfect food

food storage

digest protein

Term
Ulcers
Definition

Caused by bacteria infection of the stomach

NOT stress

 

Can be cured with antibiotics

Term
Functions of the Small Intestine
Definition

digestion

&

absorption

Term
What do small intestines DIGEST?
Definition

- carbohydrates

proteins

and fats (lipids)

Term
what are 2 functions of the Liver?
Definition

1. produce bile

2. break up fats

Term
name 4 functions of the stomach
Definition

1.kills germs

2.breaks up foods

3.digest proteins

4.store fats

Term
what type of enzymes does the pancreas produce?
Definition
digestive enzymes
Term
The Pancreas digests what 3 things?
Definition

1.proteins

2.starch

3.lipids

Term
what is a buffer?
Definition
They neutralize acid from the stomach
Term
what is the only job of the Gallbladder?
Definition
to store bile
Term
what is the mian function of the large intestine?
Definition
to re absord water
Term
what is another name for the large intesting?
Definition
colon
Term
what happens if NOT enough water is re absorbed by the colon?
Definition
Diarrhea
Term
What happens if TOO much water is re absorbed byt the colon?
Definition
Constipation
Term
through process is water re absorbed by the colon?
Definition
Diffusion
Term
what "lives" inside the large intestine?
Definition
bacteria
Term
name 2 jobs of the bacteria in the colon?
Definition

1.helps digest fruits and vegetables

2.produces vitamins

Term
what does the term "vestigial organ" mean?
Definition
That it is no longer necessary for human to have in order to live.
Term
What organ in the human body is considered vestigial?
Definition
Appendix
Term
what is roughage or fiber?
Definition
the materials left over after digestion is complete 
Term
what is the feedback inhibition?
Definition
it is the process where a stimulus produces a response that blocks the original stimulus.
Term
How does the digestive system help the body maintain homeostasis?
Definition
Feedback Inhibition
Term
In what organ is insulin produced?
Definition
Pancreas
Term
what organ is produced by the liver?
Definition
glucagon
Term
name 4 types of digestion used by other animals?
Definition

1.Filter feeding

2.living in your food

3.fluid feeding

4.bulk feeding

Term
What type of teeth do carnivores have?
Definition
Sharp ripping teeth called "canines"
Term
What type of teeth do herbivores have?
Definition
wide, grinding teeth called "molars"
Term
What type of teeth do omnivores have?
Definition
both types of teeth
Term
Do herbivores and omnivores have a LONG or SHORT digestive system?
Definition
LONG
Term
what carnivores have a LONG or SHORT digestive systems?
Definition
SHORT
Term
Carnivores have a short digestive system because ____________ is easier to digest than cellulose.
Definition
Protein
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