Introduction - finish

Question 1

What is the study of algae called

Answer 1

Phycology

Question 2

What are the 2 branches of phycology

Answer 2

• global biogeochemical importance
• harmful algae

Question 3

Define photoautotrophy

Answer 3

photosynthetic conversion of inorganic caron to organic matter

Question 4

Define heterotrophy

Answer 4

direct uptake of organic carbon from external environment

Question 5

What are the 2 types of heterotrophy

Answer 5

• osmotrophy (uptake of dissolved organic matter)
• phagotrophy (animal-like consumption of particles for organic carbon (e.g. bacteria) and other nutrients)

Question 6

Describe mixotrophy

Answer 6

a mixture of photoautotrophic and hetertrophy

Question 7

What are the things that make algae different from plants

Answer 7

• lack vascular tissue
• lack of diploid multicellular embryophytic life stage
• algae have unicellular reproductive stages that often resemble their ancestors

Question 8

Describe lichens

Answer 8

Symbiotic relationship between terrestrial algae and fungi

Question 9

Algae are considered members of what kingdom

Answer 9

• kingdom Protista

–> exception to this rule is the cyanobacteria, they are not protista, they lack the reproductive structures but use the same biogeochemical cycles producing O2 like algae (so like algae they contribute to the oxygen cycle)

Question 10

What were the first algae to first oxidize the oceans and atmosphere via oxygenic photosynthesis

Answer 10

prokaryotic cyanobacteria