MB 1st Semester Review (Chapter 5-6) Practice Test

Front

Single celled organisms once thought to be bacteria that live in extreme environments

Back

Archaea are a group of single-celled microorganisms that are distinct from bacteria and often thrive in extreme conditions such as hot springs and salt lakes.

Front

A type of virus that targets and destroys specific bacteria

Back

Bacteriophage is a virus that infects and replicates within bacteria, often used in phage therapy to treat bacterial infections.

Front

Tiny animal-like organisms that are found in plankton

Back

Zooplankton are small, often microscopic animals that drift in water and are a crucial part of aquatic food webs.

Front

Live in a symbiotic relationship with Coral

Back

Zooxanthellae are photosynthetic algae that live within coral tissues, providing energy to the coral through photosynthesis.

Front

The plant-like organisms in plankton are referred to as _______ .

Back

Phytoplankton are microscopic plants that form the base of the aquatic food chain and are essential for oxygen production.

Front

What is the primary role of phytoplankton in aquatic ecosystems?

Back

Phytoplankton are primary producers that convert sunlight into energy through photosynthesis, forming the foundation of the aquatic food web.

Front

Define bacteriophage and its significance in microbiology.

Back

Bacteriophages are viruses that specifically infect bacteria, and they are significant for their potential use in treating bacterial infections and understanding bacterial genetics.

Front

What distinguishes archaea from bacteria?

Back

Archaea have unique biochemical and genetic properties, including distinct membrane lipids and the ability to survive in extreme environments, unlike bacteria.

Front

Describe the role of zooplankton in marine ecosystems.

Back

Zooplankton serve as a crucial food source for larger marine animals, such as fish and whales, and play a key role in the transfer of energy through the food web.

Front

What is the relationship between coral and zooxanthellae?

Back

Coral and zooxanthellae have a mutualistic relationship where zooxanthellae provide nutrients to coral through photosynthesis, while coral offers protection and access to sunlight.