Bio Exam 2

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How do procaryotes differ from eukaryotes?

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Contains chapters: 22, 23, and 24

40 Terms

1

How do procaryotes differ from eukaryotes?

Unicellularity, cell size, Nucleoid, cell division, genetic recombination, internal compartmentalization, flagella, and metabolic diversity.

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2

How does unicellularity differ in prokaryotes and eukaryotes?

Prokaryotes only have the ability to be unicellular. Prokaryotes have the ability to group together by forming associations and biofilms.

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3

How does cell size differ in prokaryotes and eukaryotes?

Prokaryotes are generally smaller than eukaryotes.

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4

How does nucleoids differ in prokaryotes and eukaryotes?

There is no nucleus in a prokaryote and its DNA is singular and circular.

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5

How does cell division differ in prokaryotes and eukaryotes?

Prokaryotes divide via binary fission

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6

How does genetic recomposition differ in prokaryotes and eukaryotes?

Prokaryote’s genes transfer horizontally not sexual reproduction.

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7

How does internal compartmentalization differ in prokaryotes and eukaryotes?

Prokaryotes do not have organ-bound organelles

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8

How do flagella differ in prokaryotes and eukaryotes?

Prokaryotes have simpler flagella

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9

How does metabolic diversity differ in prokaryotes and eukaryotes?

Prokaryotes undergo oxygenic and anoxygenic photosynthesis. They are also chemolithotroph

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10

What are the two domains that branch out from prokaryotes?

Bacteria and archaea

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11

Identify the first organisms that oxygenated the atmosphere

Cyanobacteria

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12

Photoautotrophs

organisms that use light energy and inorganic carbon to produce organic materials.

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13

Chemoautotrophs

an organism that obtains energy by the oxidation of electron donors in their environments.

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14

Photoheterotrophs

organisms that use light for energy, but cannot use carbon dioxide as their sole carbon source.

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15

Chemoheterotrophs

An organism deriving energy by ingesting intermediates or building blocks that it is incapable of creating on its own.

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16

cocci

Spherical

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17

bacilli

Rod like

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18

spirilli

Spiral

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19

diplo-

Pairs

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20

strepto-

Chain like

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21

Staphylo-

Clusters (grape-like)

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22

\n Identify characteristics of eukaryotic cells

  • Cells with a nucleus

  • Mitochondria

  • Cytoskeleton of microtubules

  • Flagella and cilia

  • Chromosomes and histones

  • Mitosis

  • cell walls

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23

Paramecium

Use cilia to propel itself

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24

Amoeba

Uses lobe-like pseudopodia to anchor and pull itself forward

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25

Euglena

Use of flagellum to propel itself

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26

saprobes

Eats dead things

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27

mixotrophs

use a mix of different sources of energy and carbon

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28

What is a fungus more related to plants or animals?

Animals

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29

Describe the symbiotic relationship between fungi and algae

Algae has the ability o live inside fungi and act as a chloroplast

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30

Describe the symbiotic relationship of Mycorrhizae with plant roots

Mycorrhizae help the plant get nitrogen and phosphorus.

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31

What is in fungus cell walls that is not in plant cell walls?

Chitin

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32

Fungi are not ---, and can not ----.

Plants/Photosynthesis

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33

Zygomycetes example

Bread mold

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34

Sac Fungi example

yeast

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35

Club Fungi example

puff ball mushroom

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36

Mycorrhizae

A fungi that helps plants get nitrogen and phosphorus

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37

Rhizobium

the bacteria that live in symbiotic association with the root nodules of the leguminous plants.

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38

Zooxanthellae

A bacteria that lives in coral gives it its color and act as chloroplast for the coral

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39

Cyanobacteria

The oldest organism that is able to preform photosynthesis

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40

Lichen

That funky stuff on trees, has a relationship with cyanobacteria

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