marine science chap 7-8 marine microbes and plants

Front

What are Archaea known as and why?

Back

Archaea are known as 'extremophiles' because they can live in extreme environments such as very deep water, really hot water, and really salty water.

Front

How do autotrophic prokaryotes produce sugars?

Back

Autotrophic prokaryotes produce sugars by photosynthesis or chemosynthesis.

Front

What do prokaryotes lack that eukaryotes have?

Back

Prokaryotes do not have membrane-bound organelles.

Front

Which organisms have shells made of silica (SiO2)?

Back

Diatoms have shells made of silica (SiO2).

Front

What is the function of the stipe in seaweed?

Back

The stipe is a stem-like structure that supports the blades of the seaweed.

Front

Define 'extremophiles'.

Back

Extremophiles are organisms that thrive in extreme environmental conditions.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which autotrophic organisms convert light energy into chemical energy in the form of sugars.

Front

What is chemosynthesis?

Back

Chemosynthesis is the process by which certain organisms produce sugars using chemical energy from inorganic molecules.

Front

What are the main differences between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack membrane-bound organelles and a defined nucleus, while eukaryotic cells have both.

Front

What are diatoms and their significance in marine ecosystems?

Back

Diatoms are a type of phytoplankton with silica shells, playing a crucial role in marine food webs and oxygen production.