Seaweed and Algae

Front

What are diatoms?

Back

Diatoms are unicellular algae characterized by their silica-filled cell walls. They are a major group of phytoplankton and play a crucial role in aquatic ecosystems.

Front

What role does seaweed play in the ocean ecosystem?

Back

Seaweed acts as a producer in the ocean ecosystem, providing food and habitat for various marine organisms.

Front

List some products that contain seaweed.

Back

Seaweed is used in cosmetics, dairy products (like ice cream and yogurt), fertilizers, and personal care products (like toothpaste and shampoos).

Front

What type of phytoplankton can move using flagella?

Back

Dinoflagellates are a type of phytoplankton that can move using flagella.

Front

What is the thallus in seaweed?

Back

The thallus is the main body of the seaweed, which is not differentiated into leaves, stems, or roots.

Front

What is the function of the holdfast in seaweed?

Back

The holdfast anchors the seaweed to the substrate, preventing it from being washed away by waves.

Front

What is a bladder (pneumatocyst) in seaweed?

Back

A bladder, or pneumatocyst, is a gas-filled structure that helps seaweed float and access sunlight for photosynthesis.

Front

What is the blade of seaweed?

Back

The blade is the leaf-like structure of seaweed that is responsible for photosynthesis.

Front

What are phytoplankton?

Back

Phytoplankton are microscopic plants that live in aquatic environments and are a key component of the ocean's food web.

Front

What are the main types of algae?

Back

The main types of algae include green algae, red algae, brown algae, and blue-green algae (cyanobacteria).