bab 4 Flashcards

1
Q

jenis2 karbohidrat

A
  • monosakarida (gula ringkas)
  • disakarida
  • polisakarida (gula kompleks)
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2
Q

monosakarida

A
  • monomer karbohidrat (unit karbohidrat yg paling ringkas
  • boleh bergabung membentuk polimer melalui tindak balas kondensasi
  • kuasa penurunan/ gula penurun
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3
Q

contoh monosakarida

A
  • glukosa, fruktosa dan galaktosa
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4
Q

apakah yg akan berlaku apabila monosakarida dipanaskan dlm larutan benedict?

A
  • monosakarida menurunkan kuprum ii sulfat biru kepada mendakan kuprum i oksida yg berwarna merah beta dan tidak larut dalam air
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5
Q

sifat dan kepentingan air dlm sel

A
  • kekutuban air
  • daya lekitan dan daya lekatan air
  • muatan haba tentu air
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6
Q

disakarida

A

bergabung melalui kondensasi dan diuraikan melalui hidrolisis

ggm
gfs
ggl

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7
Q

contoh disakarida

A

sukorsa, maltosa dan laktosa

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8
Q

polisakarida

A
  • gula polimer yg terdiri drpd monomer monosakarida
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9
Q

kepentingan ch20

A
  • sebagai sumber tenaga (glukosa)
  • sebagai simpanan makanan, contohnya glikogen dalam sel haiwan dan kanji dalam sel tumbuhan
  • sebagai struktur sokongan, contohnya selulosa pada dinding sel tumbuhan
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10
Q

protein

A
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