Diatoms/Golden Algae

Question 1

Division

Answer 1

Chrysophyta (golden algae)

Question 2

Diatoms: Class

Answer 2

Bacillariophyceae

Question 3

Pigmentation

Answer 3

Chlorophyll a (also c & e), B carotene, Fucoxanthin

Question 4

Characteristics

Answer 4

Ubiquitous
Found all year round
Described using the cell wall which is made out of silica (glass and sand)

Question 5

Pennales

Answer 5

pen shaped

Question 6

Centrales

Answer 6

circle shaped

Question 7

Frustule

Answer 7

one diatom cell

Question 8

Epitheca

Answer 8

top half of diatom cell

Question 9

Hypotheca

Answer 9

bottom half of diatom cell

Question 10

Girdle

Answer 10

side view

Question 11

Valve

Answer 11

main surface

Question 12

Most important elements essential for life

Answer 12

CHNOPS (carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur)

Question 13

Eutrophication

Answer 13

excessive PO4 in a water system (algal blooms)

Question 14

Examples of Eutrophic areas around us

Answer 14

Devil’s Lake, Mud Lake, Besser Lake, Fletcher’s Floodwater

Question 15

Examples of Mesotrophic areas around us

Answer 15

Lake Huron, Lake Michigan, Long Lake, Grand Lake

Question 16

Examples of Oligotrophic areas around us

Answer 16

Clear Lake, Avalon Lake, Lake Superior

Question 17

Mesotrophic

Answer 17

moderate algal blooming

Question 18

Oligotrophic

Answer 18

low algal blooming

Question 19

Sources of PO4

Answer 19

sedimentary rock, PO4 in nucleic acids, sewage, fertilizer, detergents (not anymore)

Question 20

Liebig’s Law of the Minimum

Answer 20

essential nutrients in the least amount control the growth rates of plants, animals, and population and communities of organisms (limiting factors)