Algae

Question 1

Where do algae typically exist?

Answer 1

Oceans, rivers, lakes, ponds, brackish waters, snow.

Question 2

Algae living in snow contains —— pigments aside from chlorophyll, which gives the surrounding snow a distinctive red hue.

Answer 2

Carotenoid pigments

Question 3

is a diverse group of eukaryotic, photosynthetic lifeforms. it does not share common ancestor and are therefore polyphyletic.

Answer 3

Algae

Question 4

What does polyphyletic mean?

Answer 4

Polyphyletic refers to organism that do not share common ancestors and are not related to each other.

Question 5

Giant kelp, brown algae; ————-; Diatoms, Euglenophyta, Dinoflagellates; ———–

Answer 5

Multicellular;Unicellular

Question 6

Why are most algae ubiquitious near or inside water bodies?

Answer 6

Because algae require a moist or watery environment.

Question 7

What structural components are not present in algae?

Answer 7

True stem, shoots, leaves, vascular tissues.

Question 8

T-F: Algae are photosynthetic organisms.

Answer 8

True

Question 9

T-F: Algae are only unicellular

Answer 9

False: can either be unicellular or multicellular

Question 10

Why does structures like roots, stems, or leaves are absent in algae?

Answer 10

Algae lacks well-defined body.

Question 11

Where can you find algae?

Answer 11

Algae are found where there is adequate moisture.

Question 12

Asexual reproduction occurs by:

Answer 12

Spore formation

Question 13

T-F: Algae are free-living, although some can form a symbiotic relationship with other organisms.

Answer 13

True

Question 14

Algal cells are

Answer 14

Eukaryotic

Question 15

T-F: Algal cell walls consist of mannas, cell wall, and Galatians.

Answer 15

False: mannans, cellulose, and Galatians

Question 16

Red algae is also called

Answer 16

Rhodophyta

Question 17

Over how many recognized species with taxonomic revisions ongoing are there in red algae?

Answer 17

7000

Question 18

Is an informal group of algae with primary photosynthetic pigments, chlorophyll a and b, along with auxiliary pigments xanthophylls and beta carotene.

Answer 18

Green algae

Question 19

What are the auxiliary pigments of green algae?

Answer 19

Xanthophylls and beta carotene

Question 20

Lives in freshwater habitats and were first reported by Leeuwenhoek

Answer 20

Volvox

Question 21

Also called cyanobacteria, lives in moist or aquatic environments, however it fixes nitrogen in the soil. Also called nitrogen-fixing bacteria.

Answer 21

Blue-green algae

Question 22

Blue-green algae are not eukaryotic organisms, they are

Answer 22

Prokaryotic

Question 23

What are the types of Algae?

Answer 23

Blue-green algae, red algae, green algae

Question 24

4 examples of algae

Answer 24

Volvox, Spirogyra, Ulothrix, Fucus

Question 25

How are some algae beome toxic to humans?

Answer 25

When those algae form algal blooms.

Question 26

What are the effects of algal bloom?

Answer 26

Detrimental effects on human health and environment.

Question 27

How many percent of carbon dioxide does algae fix?

Answer 27

50%

Question 28

What are algal blooms?

Answer 28

Is the rapid increase in the algal population in a water body such as rivers or lakes. It is also characterized by discoloration of the water and peculiar odor.