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Plant Science > 1.2.3 multicellular algae > Flashcards

1.2.3 multicellular algae Flashcards

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Biology 101 flashcards
1
Q

What is the name for red algae?

A

Rhodophyta

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2
Q

What are brown algae called

A

Phaeophyta

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3
Q

What do we call green algae?

A

Chlorophyta

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4
Q

When did multicellular organisms come about?

A

Cambrian explosion

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5
Q

What are disadvantages of being a haploid?

A

You only have one set of genes, so if one part gets knocked out, you are dead

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6
Q

What is the life cycle of the algae?

A

haploid gametophyte alternates with diploid sporophyte

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7
Q

What is a huge divison of the brown algae?

A

Kelp

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8
Q

name the three parts in the brwon algae seaweed

A

the holdfast, stipe, and blade

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9
Q

What is the advantage of rhodophyta having a red pigment?

A

It can harvest all the blue light that travels down through the ocean depths

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10
Q

What coloration does rhodophyta have?

A

CHL and phycoerythrin

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11
Q

Which group of algae never have flagella?

A

Rhodophyta

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12
Q

What dyes are in the Chlorophyta

A

CHL a, b, and carotene

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13
Q

What is the name for the brown pigment in brown algae?

A

fucoxanthin, acarotenoid

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14
Q

What is the name of the yellow carotenoid?

A

Carotene

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15
Q

What is the name of the red pigment in the rhodophyta?

A

Phycocyanin

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16
Q

What two substances are found in the cell wall of the Phaeophyta?

A

cellulose and algin

17
Q

what energy storing molecule is used instead of starch for the phaeophyta?

A

Laminarian

18
Q

What is algin used for?

A

thickener

19
Q

What innovations have been found in the arctic phaeophyta?

A

Antivirals

20
Q

What is the probable cyanobacteria ancestor?

A

Red algae

21
Q

What is the cell wall made of in the rhodophyta?

A

agar and carrageenin

22
Q

What are phycoblisomes?

A

Phycobilisomes are light harvesting antennae of photosystem II in cyanobacteria

23
Q

He gave us some in class. What was it?

A

dulse

24
Q

What is the molecule secreted by rhodophyta that prevent the formation of biofilms?

A

furanone

Plant Science (19 decks)

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