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biology > cell biology > Flashcards

cell biology Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

whats diffusion

A

the random movement from a region of high concentration to low concentration through a partially permamble membrane

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2
Q

what is osmosis

A

the diffusion of water molecules from a dilute solution to low concentraion of water across a selectively permamble membrane

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3
Q

features of prokaryotic cells

A

no true nucleus, free dna, no organelles, 0.1-5um(size)

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4
Q

features of eukaryotic cells

A

nucleus, 10-100 um, organelles

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5
Q

features of stem cells

A

used in dementia and lukemia, is a undifferentiated cell, not specalised, high success rate

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6
Q

what is the nucleus

A

brain of the cell

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7
Q

what is the cell membrane

A

contains what enters and exits

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8
Q

cell wall

A

supports, gives structure

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9
Q

cytoplasm

A

makes easy pasage

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10
Q

mitrochondria

A

takes in nutrients/energy

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11
Q

vacuole

A

stores water/keeps shape

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12
Q

chloroplasts

A

absorbs light for photosynthesis

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13
Q

ribosomes

A

proteins made

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14
Q

what do plant cells contain

A

nucleus, cytoplasm, ribosomes, cell membrane, mitrochondria

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15
Q

what do animal cells contain

A

nucleus, chloroplasts, cell membrane, cell wall, mitrochondria

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16
Q

what do plant cells contain that the animal cell dont

A

cytoplasms, ribosomes

17
Q

what do animal cells contain that the plant cells dont

A

cell wall, chloroplasts

18
Q

what is the first step of the cell cycle

A

1.cell grows

19
Q

what is the second step of the cell cycle

A

2.dna replicates to form two copies of each chromosome

20
Q

what is the third step of the cell cycle

A

further growth, dna checked and repaired

21
Q

what is the fourth step of the cell cycle

A

mitosis(chromosome move about and two nuclei form

22
Q

what is the fifth step of the cell cycle

A

cytoplasm divides into two, new cell membrane seperates to give two identical cells

23
Q

what is the last step (sixth) of the cell cycle

A

temporary cell resting (no division)

biology (4 decks)

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