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Science Form 2 > Chapter 3 > Flashcards

Chapter 3 Flashcards

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Biology 101 flashcards
1
Q

Importance of calcium

A

-strengthens bone and teeth
-helps with blood clotting

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2
Q

Importance of sodium

A

-Preserves nervous system
-Maintains body fluid balance

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3
Q

Importance of iron

A

-Forms haemoglobin in blood

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4
Q

Importance of iodine

A

-Synthesises hormones in thyroid gland

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5
Q

Importance of phosphorous

A

-Strengthens bone and teeth
-Forms nucleic acid in DNA/ RNA

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6
Q

Importance of potassium

A

-Helps w/ muscle contraction
-Maintain functions of nervous system

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7
Q

Calcium deficiency

A

-Osteoporosis
-Rickets

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8
Q

Sodium deficiency

A

Muscle cramps

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9
Q

Iron deficiency

A

Anaemia

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10
Q

Iodine deficiency

A

Goitre

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11
Q

Phosphorous deficiency

A

-Rickets
-Brittle teeth

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12
Q

Potassium deficiency

A

-Paralysis
-Muscles cramps

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13
Q

Hydrochloric acid is secreted by__________

A

Stomach

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14
Q

What enzymes in the stomach is secreted?

A

Hydrochloric acid and protease

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15
Q

What is protease for?

A

Digest protein into polypeptides

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16
Q

What enzyme reaction takes place in mouth

A

Starch is broken down by amylase to become maltose

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17
Q

What enzyme small intestine secrete?

A

Maltase and protease

18
Q

What does maltase do?

A

Break down maltose into glucose

19
Q

Where is maltase found?

A

Small intestine

20
Q

In the small intestine, what does protease do?

A

Digest dipeptides into amino acid

21
Q

Pancreas in duodenum produces pancreatic juice. What does the juice contain?

A

(pancreatic) amylase, lipase and protease

22
Q

In duodenum, starch is turned into?

A

Maltose

23
Q

Fat in duodenum is converted to?

A

Fatty acid+ glyserol

24
Q

Vitamin B deficiency

A

-Beri-beri
-Anaemia

25
Q

Sources of Vitamin K

A

fish oil, milk, egg yolk

26
Q

Importance of vit. D

A

-Helps absorption of calcium
-Strengthen tooth enamel
-Maintain skin health

27
Q

Source of vit. C

A

Fruit and vege

28
Q

Importance of vit. A

A

-Improve night vision
-Maintain skin health

29
Q

Vit. E deficiency

A

-sterility
-miscarriage

30
Q

Importance of vit. E

A

-Maintain function of reproductive system

31
Q

Sources of vit. D

A

butter, eggs, fish oil, (sunlight)

32
Q

Sources of vit. B

A

yeast, liver, eggs

33
Q

Importance of vit C

A

-fight diseases
-maintain gum and mouth health

34
Q

Vit. A deficiency

A

-night blindness
-skin diseases

35
Q

Vit C. deficiency

A

Scurvy (bleeding gums)

36
Q

Vit. D deficiency

A

-Rickets
-Toothache
-skin disease

37
Q

Importance of vit. K

A

speed up blood-clotting process

38
Q

Vit. K deficiency

A

prolonged bleeding

39
Q

Importance of vit. B

A

-maintain functions of nervous system
-formation of rbc (red blood cells)

40
Q

Sources of vit. E

A

grains, green vege

41
Q

sources of vit. A

A

milk, egg yolk, fish oil

Science Form 2 (2 decks)

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