Algae
True or False: Algae cells contain chloroplasts
True
Like plants, they contain chloroplasts and are capable of photosynthesis!
True or False: Archaea are a type of bacteria.
False.
Archaea are evolutionarily distinct from bacteria.
True or False: Algae is edible.
True!
We eat limu in our poke and nori on our spam musubi!
True or False: Protozoa are prokaryotes.
False.
Unlike bacteria or archaea, they are eukaryotes.
What is a heterotroph?
An organism that gains nutrients from consumption of other organisms/materials outside of themselves
True or False: Algae produce around 70% of oxygen in the atmosphere.
True!
It's why they are often considered the foundation of life on earth.
What is an extremophile?
An organism found in the most extreme and inhospitable environments on earth.
True or False: Protozoa are multicellular organisms.
False.
They are unicellular eukaryotes.
What process does an amoeba use to consume its prey?
Phagocytosis, engulfing prey with its own body.
What is a eukaryotic cell?
A cell with a nucleus
What is the most important thing that algae produce in our environment?
Atmospheric oxygen.
Where are Archaea commonly found?
In extreme environments such as boiling hot springs, inhospitable salt lakes, and even our stomachs!
True or False: Archaea use flagella for movement.
False.
They use archaellum, a thinner and more solid projection than flagella.
Where are Protozoa found?
What is a prokaryotic cell?
A cell without a nucleus
Algae are primary producers in aquatic food chains. What does this mean?
Algae are the foundation or start of the food chain, providing a food source for many marine organisms (including brine shrimp and krill), which in turn serve as the nutrition basis for other marine animals.
Archaea reproduce using binary fission. What does this mean?
Their single cell grows bigger before splitting in two.
True or False: Archaea have a nucleus.
False!
They are prokaryotic unicellular organisms.
How can humans acquire a parasitic Protozoa?
Ingesting unclean/contaminated water or food.
What is a flagella?
A tail-like appendage used for mobility by organisms such as bacteria
How do algae get the food they need to live?
Autotrophically (photosynthesis) and/or heterotrophically (consumption).
Archaea have a special membrane that makes them distinct from bacteria. What does their special membrane help them do?
Survive extreme environments.
True or False: Protozoa feed on organic matter such as other microorganisms, or organic tissues & debris.
True!
They are heterotrophic unicellular organisms.
Name 2 of the 3 projections Protozoa use to achieve movement/motility.
Flagella, cilia, pseudopod (false foot).
What are cilia?
Hair-like projections that extend from the surface of the much larger cell body, which allow the cell to move.