All About Algae Quiz

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Which state, country, or region, are you joining us from?

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Key Vocabulary Terms

Review the key vocabulary terms below in order to answer the following quiz questions and unlock our favorite photos!

Algae: living organisms that make their own food from sunlight through photosynthesis, similar to plants

Microalgae: microscopic algae found in freshwater and saltwater

Macroalgae: large, plant-like form of algae also known as seaweed

Photosynthesis: the process by which plants and other organisms use sunlight to synthesize food from carbon dioxide and water

Harmful Algal Bloom: often referred to as HABs are overgrowths of algae in the water; some can produce dangerous toxins that affect both humans and animals

Nutrient pollution: excess nutrients (mainly nitrogen and phosphorus) put into the environment, largely from human activities such as fossil fuels, fertilizers, and pet waste

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What is algae?

An animal

A bacteria

An aquatic organism that uses photosynthesis

A microscopic organism

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Algae is an aquatic organisms that uses photosynthesis to make their own food, similar to plants.Algae comes in microscopic and macroscopic forms and can survive in both fresh and salt water habitats. (Image credit: Loggerhead Marinelife Center)

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What components are needed for a plant to conduct photosynthesis?

Nutrients, oxygen, water

Sunlight, water, carbon dioxide

Sunlight, water, oxygen

Sunlight, nutrients, water

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Photosynthesis requires sunlight, water, and carbon dioxide.Plants, algae, and some bacteria have the ability to conduct photosynthesis in order to make their own food. (Image credit: Loggerhead Marinelife Center)

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Which of the following photos represents a Macroalgae?

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Macroalgae are large, plant-like forms of algae such as seaweed.Sargassum is a common type of seaweed, or brown algae, found in the waters of the Atlantic Ocean. Sargassum mats are important habitat for hatchling sea turtles. (Image credit: Loggerhead Marinelife Center)

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What is a Harmful Algal Bloom?

A plant bloom that only occurs in fresh water

A plant bloom that only occurs in salt water

An overgrowth of algae in the water

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A Harmful Algal Bloom (HAB) is an overgrowth of algae in the water. Harmful algal blooms can occur in both fresh and salt water habitats. (Image credit: NOAA's National Ocean Service)

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What can cause a Harmful Algal Bloom?

Sunlight

Slow-moving water

Excess phosphorus

Excess nitrogen

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Harmful Algal Blooms are caused by sunlight, slow-moving water, and excess nutrients such as phosphorus and nitrogen. All components working together create conditions that lead to an algal bloom. (Image credit: NOAA's Ocean Service)

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What human activities can lead to nutrient pollution?

The use of fertilizers

Not picking up after your pet

The use of fossil fuels

The use of detergents containing phosphorus and nitrogen

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All of the options!Fertilizers, fossil fuels, pet waste, and detergents containing phosphorus and nitrogen are all primary sources of excess nitrogen and phosphorus, which when put into the environment can lead to nutrient pollution. (Image credit: Loggerhead Marinelife Center)

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