5. Marine Biology and Ecology

Marine Microbiology — Quiz

Test your understanding of marine microbiology with 5 practice questions.

Practice Questions

Question 1

Which of the following marine microbial processes is primarily responsible for the conversion of dissolved organic carbon (DOC) into particulate organic carbon (POC) that can then sink to the deep ocean, contributing to carbon sequestration?

Question 2

What is the primary mechanism by which marine microbes contribute to the formation of dimethyl sulfide (DMS), a compound with significant climatic implications?

Question 3

Which of the following best describes the ecological role of picophytoplankton in the open ocean?

Question 4

How do marine microbes contribute to the cycling of trace metals, such as iron, in the ocean?

Question 5

Which of the following is a critical role of marine microbes in the formation and stability of marine aggregates (e.g., marine snow)?