biology chapter 2 Flashcards

1
Q

name the tissues found in the stomach

A

glandular, muscular and epithelial

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2
Q

what is the function of glandular tissue in the stomach

A

release digestive juices

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3
Q

name the acid found in the stomach

A

hydrochloric

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4
Q

what is an enzyme

A

a biological catalyst

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5
Q

what do enzymes do in our digestive system

A

speed up the breakdown of our food

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6
Q

name the three main enzymes

A

amylase protease lipase

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7
Q

what enzyme is found in saliva

A

amylase

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8
Q

what type of food does amylase break down

A

starch

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9
Q

what type of food do lipase break down

A

fats/lipids

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10
Q

what type of food do protease break down

A

proteins

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11
Q

what is starch broken down into

A

glucose

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12
Q

what are fats broken down into

A

fatty acids and glycerol

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13
Q

what are proteins broken down into

A

amino acids

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14
Q

what enzyme is only released in the stomach

A

protease

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15
Q

what enzymes are released by the pancreas

A

protease, amylase and lipase

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16
Q

which part of the digestive system is the location for the digestion and absorption of food

A

small intestine

17
Q

what is the name of the theory used to explain enzyme action

A

lock and key theory

18
Q

where is bile stored

A

gall bladder

19
Q

what are the two functions of bile

A

emulsify fats and provide alkaline conditions in the small intestine

20
Q

name the chemical used to test for simple sugars

21
Q

what colour does benedict’s solution turn in the presence of sugars

A

from blue to orange/red

22
Q

name the chemical used to test for starch

23
Q

what colour does iodine turn in the presence of starch

A

from brown to black/blue

24
Q

name the chemical used in the test for proteins

25
what colour does bieurets solution turn in the presence of proteins
from blue to purple
26
what two factors influence enzyme activity
temperature and pH
27
what chemical, important in digestion, does the liver produce
bile