Question

В чём состоит отличие древних клеток зелёных водорослей от клеток цианобактерий? Помогите пожалуйста

Answer 1

В клетках водорослей содержатся различные органоиды- ядро, рибосомы, митохондрии и хлоропласты, в которых содержится хлорофилл. А в клетках цианобактерий нет оформленного ядра и хлорофилл находится в цитоплазме клетки.

Answer 2

Difference between ancient green algae cells and cyanobacteria cells

The ancient green algae cells and cyanobacteria cells have several differences. Here are some key distinctions:

1. Cell Structure: Green algae cells have a complex cellular structure with a nucleus and other membrane-bound organelles, similar to other eukaryotic cells On the other hand, cyanobacteria cells are prokaryotic, lacking a nucleus and membrane-bound organelles.

2. Pigments: Green algae cells contain chlorophyll a and b, as well as other pigments like carotenoids, which give them a green color Cyanobacteria cells also contain chlorophyll a, but they lack chlorophyll b and have additional pigments like phycocyanin and phycoerythrin, which give them a bluish-green or reddish color.

3. Oxygen Production: Green algae cells are capable of oxygenic photosynthesis, producing oxygen as a byproduct Cyanobacteria cells are also capable of oxygenic photosynthesis and are considered the first organisms to have produced oxygen on Earth, contributing to the oxygenation of the atmosphere.

4. Evolutionary History: Green algae cells are part of the eukaryotic lineage and are believed to have evolved from ancient prokaryotic ancestors through endosymbiosis Cyanobacteria cells, on the other hand, are considered to be one of the earliest forms of life on Earth and played a crucial role in the evolution of photosynthesis.

5. Ecological Roles: Green algae cells are found in various aquatic environments, including freshwater and marine habitats, and play important roles in aquatic ecosystems as primary producers Cyanobacteria cells are also found in diverse habitats, including freshwater, marine, and terrestrial environments, and can form blooms under certain conditions, sometimes leading to harmful algal blooms.

It's important to note that these are general differences between ancient green algae cells and cyanobacteria cells. There may be variations within each group, and further research can provide more detailed insights into their characteristics and evolutionary history.

I hope this information helps! Let me know if you have any more questions.