If the cuvette with the algae are in the dark , the process of photosynthesis and cellular respiration occurs.
An algae can be described as a members of a group of predominantly aquatic photosynthetic organisms of the kingdom Protista.
Algae has many economic importance that ranges from ecological roles as oxygen producers and as the food base for almost all aquatic life.
Algae are also economically important as a source of crude oil and as sources of food and a number of pharmaceutical and industrial products for humans.
Photosynthesis and cellular respiration occurs if the cuvette with the algae are kept in the dark.
Algae can photosynthesize but they lack the specialized multicellular reproductive structures of plants, that contain fertile gamete-producing cells surrounded by sterile cells.
The size range of the algae can span seven orders of magnitude. Many of these algae consist of only one cell, while the largest of them have millions of cells.
In conclusion, algae are classified into groups based on their pigmentation.
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