Energy Flow in Ecosystems Short Writing Prompt Use the model...

Energy Flow in Ecosystems Short Writing Prompt Use the model here to describe the transfer of matter and flow of energy from one trophic level to another within an ecosystem. All of the following must be addressed in your response to receive full credit: a. Discuss the transfer of biomass when one organism eats another. Use your knowledge of digestion to discuss how food is broken down and used by the consumer. b. Explain what happens to the energy that is not transferred from one organism to another. c. Explain why there are typically fewer organisms at the top of an energy pyramid. d. Use specific numbers and calculations to support your explanation.

Transcript

00:01 Hello students, let us solve this question.

00:03 So in this question we have to write an article on energy flow in the ecosystem using four prompts that are given in the question.

00:18 So the first prompt that has been given in the question a is that we have to explain how biomass is transferred.

00:27 So transfer of biomass across the trophic levels.

00:34 And then we have to explain how food is digested, how food is digested or broken down by consumers is broken down by consumers.

00:56 To answer this question, we should first know what is biomass.

00:59 Now the organic matter, the organic matter present in the living organism at any trophic level is known as the biomass.

01:11 So how is the biomass transferred from one trophic level to another in the ecosystem? so we know first are the producers.

01:22 The producer able to capture the energy of the sun and store it in the form.

01:29 Of starch.

01:32 And then this biomass from the producers is transferred to the consumers.

01:41 In consumers, you have, again, different levels of consumers.

01:45 You first have primary consumers that directly eat green plants, then you have secondary consumers, and then you have tertiary consumers.

02:02 After the consumer dies, it is going to transfer its biomass to the decomposers that are going to degrade the organic matter present.

02:19 Now the decomposers, they are going to put the nutrients and biomass back into the soil, which will then again be absorbed by the producers and used by the producers to store it in the form of starch.

02:33 And then the cycle will continue.

02:35 Now, how food is broken down in consumers? so there are certain things.

02:42 For example, we have protein.

02:48 So protein, the end product of protein will be amino acids.

02:53 So proteins are broken down to give amino acids.

02:57 And this amino acid, it is then absorbed by the cell of the consumer.

03:05 And it is used for further processing.

03:09 Then any carbohydrates that the consumer taken as food, it is eventually to give glucose, which is used by the cells for their energy needs.

03:24 And then finally, you also have fats.

03:27 These are actually the end products of digestion.

03:31 So we have fats and is broken down...

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