Seaweed and Algae

Seaweed and Algae

Assessment

Flashcard

Biology

9th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

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.

2.

FLASHCARD QUESTION

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.

3.

FLASHCARD QUESTION

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).

4.

FLASHCARD QUESTION

Front

What type of phytoplankton can move using flagella?

Back

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

5.

FLASHCARD QUESTION

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.

6.

FLASHCARD QUESTION

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.

7.

FLASHCARD QUESTION

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.

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