sel Flashcards

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1
Q

prokariotik ( bakteri, monera )

A

tidak memiliki membran inti. terdiri: membran sel, sitoplasma, dna, ribosom, nukleoid (daerah inti).

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2
Q

eukariotik

A

membran inti, nukleus. terdiri:membran sel, sitoplasma, dna, ribosom, organel bermembran

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3
Q

pengelompokan organel berdasarkan perannya (sintesis & sekresi protein)

A
  1. nukleus
  2. ribosom
  3. retikulum endoplasma
  4. badan golgi
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4
Q

nukleus

A

pusat aktivitas sel (regulasi, replikasi, transkrip)

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5
Q

ribosom

A

sintesis protein (translasi)

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6
Q

retikulum endoplasma

A

RE kasar modifikasi dan sekresi protein
RE halusdetoksifikasi. sintesis lipid

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7
Q

badan golgi

A

modifikasi protein dan sekresi

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8
Q

pengelompokan organel berdasarkan perannya (metabolisme)

A
  1. kloroplas: fotosintesis
  2. mitokondria: respirasi seluler
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9
Q

pencernaan dan penyimpanan zat

A
  1. lisosom
  2. peroksisom
  3. vakuola
  4. membran sel
  5. dinding sel
  6. sentrosom
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10
Q

lisosom

A

pencernaan. merombak glokogen menjadi glukosa, mencerna organel tua/ rusak, berperan dlm fagositas sel

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11
Q

peroksisom

A

punya enzim katalase

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12
Q

vakuola

A

menyimpan cadangan makanan

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13
Q

membran sel

A

mengatus tarnspor zatdari dan ke dalam sel

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14
Q

dinding sel

A

proteksi dan memelihara bentuk sel

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15
Q

sentrosom

A

mengatur perubahan sel dgn menghasilkan benang spindel

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16
Q

jenis vakuola

A
  1. vakuola sentral: ada pada tanaman dan alga. berperan menyimpam zat, cadangan makanan
  2. vakuola makanan: ada pada hewan dan protozoa. berperan sebagai fagosom, yaitu membantu pencernaan oleh lisosom
  3. vakuola kontraktil: ada pada protozoa air tawar. berperan sebagai alat asmoregulasi, yaitu memompa aitr keluar sel
17
Q

persamaan sel hewan dan tumbuhan

A

membran sel, sitoplasma, nukleus, ribosom

18
Q

perbedaan sel hewan dan tumbuhan

A

sel hewan:memiliki lisosom dan sentrosom
sel tumbuhan: memiliki vakuola