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science revision ass 1 > biology chapter 2 > Flashcards

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

A

benedicts

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

A

iodine

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

A

bieuret

25
Q

what colour does bieurets solution turn in the presence of proteins

A

from blue to purple

26
Q

what two factors influence enzyme activity

A

temperature and pH

27
Q

what chemical, important in digestion, does the liver produce

A

bile

science revision ass 1 (6 decks)

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