Q1: Cell Types Flashcards

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1
Q

The first cells to appear on Earth.

A

Prokaryotic Cells

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2
Q

An organism made of a single prokaryotic cell.

A

Prokaryotes

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3
Q

A cell with no true nucleus.

A

Prokaryotes

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4
Q

The earliest prokaryotes may have arisen more than ________ ago.

A

2.5 billion years

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5
Q

single loop of circular DNA in prokaryotes

A

nucleoids

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6
Q

Size range of prokaryotes

A

1-10 μm

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7
Q

A rigid envelope surrounding the cytoplasmic membrane of most bacterial species.

A

peptidoglycan

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8
Q

An additional layer enclosing prokaryotes. It has a sticky surface area, so it allows prokaryotes to cling to surfaces, such as your skin and your teeth.

A

capsule

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9
Q

Kingdoms where prokaryotes belong

A
  • Kingdom Eubacteria
  • Kingdom Archaea
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10
Q

How does prokaryotes reproduce

A

Asexual reproduction

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11
Q

Attachment structures on the surface of some prokaryotes

A

Fimbriae

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12
Q

Region where the cell’s DNA is located in prokaryotic cells

A

Nucleoid

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13
Q

Complexes that synthesize proteins

A

ribosomes

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14
Q

Jelly-like outer coating of many prokaryotes

A

Capsule

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15
Q

Locomotion organelles of some bacteria

A

flagella

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16
Q

They are more complex than prokaryotic cells.

A

Eukaryotic Cells

17
Q

Size range of Eukaryotes

A

10-100 um

17
Q

The DNA of eukaryotic cells are ____________ arranged into chromosomes and does not float freely in the cytoplasm.

A

double-stranded

18
Q

Are organisms made of one or more eukaryotic cells.

A

Eukaryotes

19
Q

True or False:
The earliest eukaryotes were single-celled organisms.

A

True

20
Q

True or False:
Eukaryotes arose about 1 million years later than the earliest prokaryotes.

A

False

Eukaryotes arose about 1 billion years later than the earliest prokaryotes.

21
Q

True or False:
Every type of multicellular organism that exists is made up of eukaryotic cells.

A

True

22
Q

Examples of Eukaryotic Cells

A
  • Animal Cells
  • Plant Cells
  • Fungi
  • Protists
23
Q

Organelles present in prokaryotic cells.

A
  • Cell wall
  • cell membrane
  • nucleoid
  • ribosomes
  • DNA/chromosomes
  • Cytoplasm