Hydrothermal Vents Food Web Brandon Tran Biology Diagrams The chemosynthetic vent bacteria are the base of the food chain at hydrothermal vents. This is a unique community on Earth. Up until 1977 ecologists had believed almost all ecosystems needed photosynthesis as the process that allowed the producers to live and become food for the consumers. Most deep-sea areas known still depended on this
processes which occur at deep sea hydrothermal vents and form the base of the food chain in the absence of sunlight. (Note that the original Winogradsky column was made by a Russian microbiologist Sergei N. Winogradsky.) Bacteria that are chemosynthetic are the oldest life forms on Earth. The classic Winogradsky What Lives at Hydrothermal Vents? Vent microorganisms, including bacteria and archaea, use the . chemical-rich soup spewing from hydrothermal vents as a source . of energy, rather than sunlight, in a process called chemosynthesis. These microbes are the basis of the food web that supports life in a Students will make a food web diagram of the hydrothermal vent community and show the flow of energy and materials in this ecosystem. Materials: · hydrothermal vent organism cards · art paper · marking pens Procedures: 1. Teacher gives lesson on food chain levels: producers, consumers, carnivores, top carnivores and decomposers. 2.
PDF Introduction: Chemosynthesis at Hydrothermal Vents Biology Diagrams
food chain. 3. Hydrothermal vent food webs are far more complex than a simple food chain. Now, use all of the organism cards to complete the food web template on slide 18. a. Type the name of each organism in the empty boxes provided. b. Draw arrows to show the direction that energy is flowing through the food web. hydrothermal vent food webs are powered by the geothermal heat within the earth. In some areas of the deep sea, near ocean floor ridges, water circulates As students work, circulate around the room and listen for students' comments and questions. If students are interested, you may share with food web - interlocking food chains (slides 4-16 of the Hydrothermal Vent Food Web Presentation) (one per student group) For online learning: • Share the Hydrothermal Vent Food Web Presentation with students using an online learning platform (remove the answer key before sharing) Background Hydrothermal vents are home to dynamic, diverse ecosystems that exist in the absence of
hydrothermal vent. fields . and at . cold seep. sites around the globe. Chemosynthetic microbes, like bacteria and archaea, form . the base of food webs at hydrothermal vents and cold . seeps. Instead of photosynthesis, these organisms use chemosynthesis, the process of creating sugars (food) using energy released from chemical reactions. Unlike
PDF HYDROTHERMAL VENTS Biology Diagrams
Hydrothermal fluid contains dissolved metals or other chemicals that feed microbes through a process called che-mosynthesis. These microbes form the base of the food chain at hydrothermal vents and seeps and support a wide range of other life, including tubeworms, shrimp, and mussels—much
The chemicals in hydrothermal vent fluid would be toxic to most forms of life familiar to us, but amazingly, a unique ecosystem has evolved to live at hydrothermal vents. a process in which certain microbes use chemicals in the vent water to produce energy. They in turn form the base for an entire food chain of animals. Chemosynthetic
