biological molecules and Nutrition Flashcards

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1
Q

examples of monosacharide

A

glucose,fractose,glactose

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2
Q

examples of disacharide

A

maltose,sucrose,lactose

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3
Q

examples of polysaccharide

A

starch,glycogen,cellulose

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4
Q

carbohydrates are stored as—-in plants

A

starch

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5
Q

carbohydrates are stored as—–in animals

A

glycogen

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6
Q

structure of fats

A

four small molecules joined together one of these is glycerol attached to three long molecules called fatty acids

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7
Q

structure of protiens

A

made of long chains of smaller molecules called ammino acids

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8
Q

compostion of carbohydrates and fats

A

carbon,hydrogen,oxygen

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9
Q

compostion of protien

A

carbon,hydrogen,oxygen,nitrogen and sometimes sulfur

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10
Q

cataylst

A

a substance that increases the rate of a chemical reaction and is not changed by the reaction

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11
Q

enzyme

A

are protiens that act as biological catalysts which speeds up the reactions inside the living organism without being changed

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12
Q

substrate

A

is the substance that enzyme acts on

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13
Q

enzymes are affected by

A

temperuture increase the rate of reaction increases ,particles gain more kinetic energy so more sucessful collisions between the substrate molecules and the active site
ph

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14
Q

Importance of carbs

A

Source of energy

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15
Q

Importance of fats

A

Source and store of energy, form insulating layer under skin,form a protective layer over sensitive organs

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16
Q

Importance of protien

A

Growth,tissue repair,make hormones, antibodies

17
Q

Importance of vitamin c

A

Stick cells together for healthy skin and gums and prevent scurvy

18
Q

Importance of vitmin d

A

Help absorption of calcium into bones and prevent rickets

19
Q

Importance of vitamin A

A

Prevent night blindness,form photochemical in retina to help night blidness

20
Q

Importance of iron

A

Prevent anemia
Formation of hemoglobin

21
Q

Importance of calcium

A

Prevent rickets
Formation of bones and teeth

22
Q

Importance of water

A

Solvent for metobolic reaction
Transport and cooling of the body (sweating)

23
Q

Example of carbs

A

Sugar and starch

24
Q

Example of fats

A

Milk,plant oil

25
Q

Example of protien

A

Egg,bean,meat,milk

26
Q

Example of dietary fibre

A

Whole bread, fruits, vegetables

27
Q

Example of vitamin c

A

Citrus fruit

28
Q

Example of vitamin D

A

Exposure to sunlight
Eggyolk

29
Q

Example of vitamin A

A

Green vegetables

30
Q

Example of iron

A

Red meat
Liver

31
Q

Example of calcium

A

Milk

32
Q

Where water in

A

All food and drinks

33
Q

Is monosharide and disacharide soulble or insoluble

A

Soluble

34
Q

Is polyscharide soluble or insoluble

A

Insoluble

35
Q

Importance of dietary fibre/roughage

A

Stimulates prestalsis,prevent consitpation,protect against colon cancer

36
Q

What optimum temperature of enzyme activity

A

37

37
Q

What happen after optimum temperature of enzyme activity

A

Rate of reaction decrease, as enzymes denatured and active site change and substrate will no longer fit