Algae Lab Flashcard Practice

Front

What is the main characteristic of the phylum Chlorophyta?

Back

Chlorophyta, commonly known as green algae, are characterized by their green color due to the presence of chlorophyll a and b, and they primarily inhabit freshwater environments.

Front

What are the primary pigments found in Phaeophyta?

Back

Phaeophyta, or brown algae, contain pigments such as chlorophyll a, chlorophyll c, and fucoxanthin, which give them their brown color.

Front

What is the significance of Rhodophyta in marine ecosystems?

Back

Rhodophyta, or red algae, play a crucial role in marine ecosystems as they contribute to coral reef formation and provide habitat and food for various marine organisms.

Front

Define the term 'thallus' in the context of algae.

Back

A thallus is the body of an alga that is not differentiated into leaves, stems, or roots, and can vary in form from unicellular to multicellular structures.

Front

What is the role of chlorophyll in algae?

Back

Chlorophyll is a pigment that allows algae to perform photosynthesis, converting light energy into chemical energy to produce food.

Front

Explain the term 'alternation of generations' in algae.

Back

Alternation of generations refers to the life cycle of algae that alternates between a haploid gametophyte stage and a diploid sporophyte stage.

Front

What is the ecological importance of algae in aquatic environments?

Back

Algae are primary producers in aquatic ecosystems, providing oxygen and serving as a food source for various organisms, thus supporting the food web.

Front

Identify one example of a commercially important product derived from algae.

Back

Carrageenan, a thickening agent used in food products, is derived from red algae (Rhodophyta).

Front

What is the difference between unicellular and multicellular algae?

Back

Unicellular algae consist of a single cell (e.g., Chlamydomonas), while multicellular algae are composed of multiple cells organized into structures (e.g., kelp).

Front

What is the habitat preference of Chlorophyta?

Back

Chlorophyta primarily prefer freshwater habitats, but some species can also be found in marine environments.