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Biology > Ch 7 Biology > Flashcards

Ch 7 Biology Flashcards

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1
Q

What is the function of villi?

A

Increase surface area for absorption.

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2
Q

What is mechanical digestion?

A

Mechanically breaking down food.

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3
Q

Whatis chemical digestion?

A

Chemically breaking down food.

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4
Q

What types of digestion occur in the mouth?

A

Both Chemical and Mechanical.

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5
Q

In what 3 organs does chemical digestion occur?

A

Mouth,stomach, small intestine.

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6
Q

What 3 substances make up gastric juices in the stomach?

A

HCL, Mucus, Pepsin.

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7
Q

What causes Heartburn?

A

Acid in esophagus.

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8
Q

What type of organic molecule does amylase digest?

A

Carbohydrate.

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9
Q

Where does the chemical digestion of fats begin?

A

Small Intestine.

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10
Q

What is the function of the rectum?

A

Store feces.

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11
Q

What is the function of the large intestine?

A

Absorb Water and produce vitamin k.

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12
Q

After monosaccharides are absorbed into the blood where do the go?

A

Mitochondria.

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13
Q

What organic molecule do the enzymes made in the pancreas digest?

A

Fat, surgar, protein.

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14
Q

What value does cellulose have in our diet.

A

Fiber, stimulates contractions of Large Intestine.

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15
Q

How do koalas digest eucalyptus?

A

Place in the caecum.

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16
Q

What is peristalisis?

A

Waves to move food down esapagus.

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17
Q

How do enzymes aid in the digetive system?

A

Chemical breakdown.

18
Q

What is the end product of the digestion of starch, protein, and fat?

A

Glucose, amino acid, fatty acid and glycerol.

19
Q

Name 3 organs that are considered accessory organs in the digestive system?

A

Salivary gland, liver, gall bladder, pancreas.

20
Q

What is the function of bicarbonate and where is it produced?

A

Neutralized acid.

21
Q

Where and how is vitamin k produced?

A

Large intestine by bacteria.

22
Q

Trace the pathway of food through the true organs of the digestive system.

A

Mouth to esophagus to stomach to small intestine to large intestine to rectum to anus.

23
Q

Name the enzyme investigated in the spit lab.

A

Amylase.

24
Q

What is a calorie?

A

A unit of heat energy.

25
Q

What causes diarrhea?

A

Large intestine not absorbing water.

26
Q

How come the acid solution from the stomach does not burn the duodenum?

A

Pancrease secretes a basic solution.

27
Q

What is the function of bile?

A

Break lipids to lipid droplets.

28
Q

Where is this bile made and then stored?

A

Liver to gall bladder.

29
Q

What is the function of the epiglottis?

A

To prevent swallowed items in windpipe.

30
Q

Why do we have bacteria living in our intestine?

A

To absorb water and produce vitamin k.

31
Q

Describe the importance of mechanical digestion.

A

It increases the surface area of food, allowing chemical digestion to occur more frequently.

32
Q

What might result if food moves very quickly through the large intestine?

A

The feces would be eliminated as diarrhea.

33
Q

When do diabetics need to take insulin?

A

When levels of glucose in the blood are at high levels.

34
Q

What is most likely a result of damage to the liver?

A

Decrease in bile production.

35
Q

Where does most digestion occur?

A

Small Intestine.

36
Q

What is a statement that about the digestive system?

A

Wherever mechanical digestion occurs, chemical digestion also occurs.

37
Q

What provides a passage for both food and air?

A

The pharynx.

38
Q

The wavelike contractions of muscle that move food through the digestive system are called.

A

Peristalsis.

39
Q

Pepsin and hydrochloric acid in the stomach begin the digestion of:

A

Protein.

40
Q

What does bile do.

A

Breaks down globules of fat into tiny droplets.

41
Q

Fat molecules are broken down into fatty acids by.

A

Enzymes.

Biology (2 decks)

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