Chapter 12 - Algae

Question 1

Classification of Algae

Answer 1

Domain (Eukarya) / Kingdom (Protist) / Subkingdom (Algae)

Question 2

Characteristics of Algae

Answer 2

Eukaryotic / Uni or Multi- Cellular / Photoautotrophic / Chloroplasts

Question 3

Algae from chains of cells called

Answer 3

filamentous

Question 4

Algae is classified into Phylums by pigments

Answer 4

Phaeophyta (Brown), Rhodophyta (Red), Chlorophyta (Green)

Question 5

Cells covering the Body of Algae that carry out photosynthesis

Answer 5

Thallus

Question 6

Algae absorb their nutrients through the water over what part

Answer 6

Entire surface (Thallus)

Question 7

Root-like anchors that attach algae to rocks

Answer 7

Holdfasts

Question 8

Stem-like structure that does NOT offer support

Answer 8

Stipe (support provided by water)

Question 9

Leaf-like structure

Answer 9

Blade

Question 10

Habitat of Algae

Answer 10

Aquatic ,soil, rocks, plants / Cool water / most in ocean

Question 11

Location of Algae

Answer 11

depends on nutrients, wavelengths of light, and surfaces on which to grow

Question 12

Algae Reproduction

Answer 12

All Asexually by binary fission or fragmentation. / Sexually less frequently

Question 13

Phylum Phaeophyta (Brown)

Answer 13

Kelp* Macroscopic, Algin extracted from cell walls used in (ice cream, rubber tires, hand lotion)

Question 14

Phylum Rhodophyta (RED)

Answer 14

found DEEPer in ocean, used to make agar (thickening agent in ice cream, evaporated milk)

Question 15

Phylum Chlorophyta (GREEN)

Answer 15

microscopic, uni & mulicellular, cellulose cell walls contain Chlorophyll A and B
Volvox, Spirogyra

Question 16

Diatoms

Answer 16

• most numerous unicellular algae
• some are filamentous
• important in food chain –primary food source for filter feeders (clams, oysters and mussels)
• have characteristic Frustules (Rigid Shells)

Question 17

Dinoflagellates

Answer 17

Unicellular algae, collectively know as Plankton

- photosynthetic
- have rigid shells (frustules)
- equitorial Groove
- cause red tide