Sains Bab 3.3 SISTEM PENCERNAAN MAKANAN Flashcards

1
Q

Apakah maksud pencernaan makanan?

A

Proses penguraian makanan yg kompleks dan besar kepada molekul2 yg lebuh kecil.

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2
Q

Pencernaan ada 2 jenis which is..

A

Fizikal dan kimia

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3
Q

Jelaskan pencernaan fizikal

A

-proses pemecahan makanan yg dimakan kepada cebisan2 kecil di dlm mulut dgn bantuan gigi, lidah dan air liur
-melibatkan peristalsis

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4
Q

Jelaskan pencernaan kimia

A

-proses penguraian makanan daripada molekul2 kompleks kepada molekul2 ringkas dgn bantuan enzim

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5
Q

Apakah persamaan antara pencernaan kimia dan fizikal?

A

-berlaku pemecahan makanan
-berlaku di dlm salur pencernaan

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6
Q

Apakah perbezaan antara pencernaan fizikal dan kimia?

A

-Pencernaan fizikal berlaku di dlm mukut sahaja manakala pencernaan kimia berlaku di dlm mulut, perut, duodenum dan usus

-fizikal nda melibatkan enzim, kimia melibatkan enzim

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7
Q

Binakan salur pencernaan dlm badan manusia

A

Mulut > Esofagus > Perut > Duodenum > Usus kecil > Usus besar > Rektum > Dubur

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8
Q

“Kanji > Maltosa”
Apakah enzim bagi pernyataan di atas dan ia dirembeskan oleh?

A
  • Amilase
  • dirembeskan oleh air liur dan pankreas
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9
Q

“Maltosa > Glukosa”
Apakah enzim bagi pernyataan di atas dan ia dirembeskan oleh?

A

-maltase
-dirembeskan oleh usus kecil

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10
Q

Kelas makanan mana satu ka yg menukarkan (kanji> maltosa > glukosa)

A

Karbohidrat

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11
Q

Kelas makanan mana satu ka yg menukarkan(protein > polipeptida > dipeptida > asid amino)

A

Protein

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12
Q

Kelas makanan mana satu ka yg menukarkan( lemak > asid amino + gliserol)

A

Lemak

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13
Q

Apakah enzim bagi protein?

A

Protease(dirembeskan oleh perut, pankreas dan usus kecil)

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14
Q

Apakah enzim bagi lemak?

A

Lipase- dirembeskan oleh pankreas

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