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Sains > Sains Bab 3 > Flashcards

Sains Bab 3 Flashcards

1
Q

Nyatakan fungsi karbohidrat

A

Membekal tenaga

Menjadi makanan simpanan

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2
Q

Nyatakan unsur dan contoh karbohidrat

A

Karbon
Hidrogen
Oksigen

Contoh:
Kanji
Glikogen selulosa

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3
Q

Nyatakan unsur dan unit asas protein

A

unsur: karbon, hidrogen, oksigen, nitrogen

Unit asas:Asid amino

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4
Q

Nyatakan fungsi protein

A

Pertumbuhan
Pembaikan tisu
Mengganti sel mati
Mensintesis enzim, hormon , antibodi

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5
Q

Nyatakan unsur dan unit asas lemak

A

karbon, hidrogen, oksigen

Gliserol, asid lemak

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6
Q

Fungsi lemak

A

Sumber dan simpanan tenaga
Melindung organ
Pengangkut vitamin
Penebat haba

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7
Q

Maksud pelawas

A

Bahan yang tidak dapat diuraikan, terdiri dari selulosa

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8
Q

Fungsi pelawas

A

merangsang peristalsis

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9
Q

Fungsi dan unsur air

A

hidrogen
Oksigen

Pelarut bahan kimia
Medium pengangkutan nutrien&oksigen

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10
Q

Fungsi Kalsium

A

Membantu darah beku

Menguatkan tulang , gigi

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11
Q

Sumber kalsium

A

susu
Ikan
Udang

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12
Q

Kesan kekurangan kalsium

A

riket

Osteoporosis

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13
Q

Fungsi natrium

A

Memelihara saraf

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14
Q

Kesan kekurangan natrium

A

kekejangan otot

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15
Q

Sumber natrium

A

garam
Daging
Telur

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16
Q

Fungsi besi

A

Membina hemoglobin dalam darah

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17
Q

Kesan kekurangan besi

A

Anemia

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18
Q

Sumber besi

A

Hati

Daging

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19
Q

fungsi iodin

A

Membantu kelenjar tiroid

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20
Q

Kesan kekurangan iodin

A

Goiter

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21
Q

Sumber iodin

A

Seafood

Buah

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22
Q

Sumber Fosforus

A

Keju
Daging
Telur
Sayur

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23
Q

Fungsi fosforus

A

Menguatkan gigi dan tulang

Membentuk asik nukleik dalam dna dan rna

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24
Q

Kesan kekurangan fosforus

A

Riket
Gigi rapuh
Tidak boleh membina rna dan dna

25
Q

Sumber kalium

A

Tumbuhan

Haiwan

26
Q

Fungsi kalium

A

membantu pengecutan otot

Memelihara saraf

27
Q

Kesan kekurangan kalium

A

lumpuh

Kekjangan otot

28
Q

Fungsi utama vitamin

A

Mengekalkan kesihatan

29
Q

Fungsi vitamin A

A

membantu penglihatan malam

Memelihara kulit

30
Q

Sumber vitamin a

A

Susu
Kuning telur
Minyak ikan

31
Q

Sumber Vitamin B

A

hati

Telur

32
Q

Fungsi vitamin b

A

Memelihara saraf

Membentuk sel darah merah

33
Q

Kesan kekurangan vit b

A

Beri beri

Anemia

34
Q

Sumber vitamin c

A

Buah

Sayur

35
Q

Fungsi vitamin C

A

Melawan jangkitan penyakit

Memelihara gusi dan mulut

36
Q

Kesan kekurangan vitamin c

A

Skurvi (gusi berdarah)

37
Q

Sumber Vitamin D

A

Mentega
Telur
Cahaya Matahari

38
Q

Fungsi Vitamin D

A

Menyerap kalsium
Menguatkan enamel gigi
Memelihara kulit

39
Q

Kesan kekurangan vitamin d

A

Riket
Sakit gigi
Penyakit Kulit

40
Q

Sumber vitamin e

A

Bijirin

Sayur hijau

41
Q

Fungsi vitamin e

A

memelihara sistem pembiakan

42
Q

Kesan kekurangan vitamin E

A

Kemandulan

Keguguran fetus

43
Q

Sumber Vitamin K

A

Susu
Kuning telur
Minyak ikan

44
Q

Fungsi Vitamin K

A

Mempercepat Pembekuan darah

45
Q

Kesan kekurangan Vitamin K

A

Darah lambat beku

46
Q

4 Vitamin larut lemak

A

Vitamin A
D
E
K

47
Q

2 Vitamin Larut Air

A

Vit b

Vit c

48
Q

Definisi gizi seimbang

A

Pemakanan yang mengandungi semua kelas makanan dalam kuantiti yang betul

49
Q

6 Faktor Keperluan Kalori

A 
Saiz Badan
Umur
Pekerjaan
Jantina
Keadaan Kesihatan
Iklim
50
Q

Nilai kalori g-¹ lemak,protein, carbs

A

9kcal
4kcal
4kcal

51
Q

Definisi pencernaan makanan

A

Proses penguraian makanan yang besar dan kompleks dan besar kepada yang kecil dan ringkas serta boleh larut supaya dapat diserap ke dalam sel sel badan

52
Q

Ciri ² pencernaan fizikal

A

Di dalam mulut
Tidak melibatkan enzim
Berlaku di salur pencernaan
Berlaku pemecahan makanan

53
Q

Ciri ciri pencernaan kimia

A

Berlaku di dalam mulut, duodenum,perut, usus

Melibatkan enzim

Berlaku di salur pencernaan

Berlaku pemecahan makanan

54
Q

Proses pencernaan mulut

A

amilase liur mengurai kanji kepada maltosa

55
Q

Pencernaan di esofagus

A

Makanan disebut bolus

Berlakunya peristalsus yang menolak bolus ke perut

56
Q

Pencernaan di perut

A

Protease mencerna protein kepada polipeptida

Makanan separa cecair dipanggil KIM

57
Q

Pencernaan di duodenum

A

Amilase pankreas mencerna kanji kepada maltosa

Protease mencerna polipeptida kepada dipeptida

Lipase mencerna lemak menjadi asid lemak dan gliserol

58
Q

Pencernaan di usus kecil

A

Matase mencerna maltosa menjadi glukosa

Protease mencerna dipeptida menjadi asid amino

Sains (1 decks)

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