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Cell structure Flashcards

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Biology 101 flashcards
1
Q

Do prokaryotic cells have internal membranes?

A

No

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2
Q

What type of ribosomes do eukaryotic cells have?

A

80S

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3
Q

Can prokaryotic cells be multicellular?

A

No

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4
Q

Which type of cells can have branched fatty acids as their cell membrane?

A

Prokaryotic cells

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5
Q

What do all cells have? Name 3 structures minimum

A

Possible answers: Plasma membrane, Cytoplasm, Ribosomes, Double-stranded DNA genome, Organelles

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6
Q

True or False? All prokaryotic cells’ cell wall contain peptidoglycan

A

False, only some cells not all

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7
Q

Are 70S ribosomes attached to membranes or free in the cell?

A

They are all free in the cell

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8
Q

Are 80S ribosomes attached to membranes or free in the cell?

A

Some are attached to membranes, others are free

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9
Q

True or false? All cells have organelles

A

True

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10
Q

In eukaryotic cells, ester linkages attach unbranched fatty acids to what type of glycerol?

A

D-glycerol

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11
Q

In some prokaryotic cells, ester linkages attach branched fatty acids to what type of glycerol?

A

L-Glycerol

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12
Q

What is the purpose of membrane-bound organelles in eukaryotic cells?

A

They allow functions to be compartmentalized in different areas of the cell

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13
Q

How do prokaryotic cells reproduce?

A

Asexually (binary fission)

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14
Q

What do eukaryotic cells have that prokaryotic cells lack? Name 3 structures minimum

A

Membrane-bound nucleus, membrane-bound organelles, rod-shaped chromosomes, 80S ribosomes

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15
Q

What are the two processes from which a nucleus originates?

A

Endosymbiosis and infolding

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16
Q

Endosymbiosis is a process by which a symbiotic organism lives inside another. It is the probable source of origin of which organisms or structures? Name at least 2

A

Possible answers: Mitochondria, nucleus, chloroplasts, plastids

17
Q

What is one good way for a cell to become more efficient?

A

Division

18
Q

How can one tell if a cell is more efficient than another just by looking at them?

A

Larger cells are less efficient

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