BIOSCI 108 🎓Lecture 13: Algae: more than just sushi

part 2

What groups are algea a part of

Protist

What are similrities they have with plant cells

They contain chloroplasts in their cells, which is the site of photosynthesis.

What can chlorplasts be traced back to

endosymbiotic events, when a cyanobacterium was engulfed by the eukaryotes.

what is brown algea knwon for

What are the most complex form of algea

what does it form

highly productive kelp forest which are threatened.

what is most least diverese

Brown algea then red and green.

what describes algea and why are they important

algea are fascinating biological organims, important both ecologically and economically.

what is a culturlly important algea

karengo

what type of algea is karengo

red algea

describe karengo algea

karengo (red algea) is a culturally imporatant seaweed which sourced from wild stocks.

describe green algea

green algea are a diverse group that can be found in both fresh and salt water environment.

describe how abundant brown and red algea are in freshwater

very rarely found in freshwater.

what are some chemical adaptions from algea and give me specific examples

Chemical extractions from algae (such as alginates, agar, carrageenan, and beta carotene) are used as food additives and medicines

what are the common characteristics of algea.

• Cells contain chloroplasts and chlorophyll, and they are multicellular (but microalgae are unicellular).

• Cells have a cell wall.

• photosynthetic organisms.

• major components of many coastal ecosystems.

explain endosymbiosis

Chlroplast was though to be a bacteria (cyanobacteria) that was engulfed by the large cells.

two benefits of colonising the land.

What are some challenges algea face growing outside an aquatic enviornments.

frugivores , light sends spores)