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What 3 factors account for decreasing biomass at higher trophic levels?
the flow of energy: primary production higher than trophic levels.
What is the Primary cellular sites for the production of energy from carbohydrates?
Mitochondria is the primary cellular site for the production of energy from carbohydrates. Mitochondria is found in a large number of cells.
Which cellular organelle is the primary site of oxygen dependent energy production?
mitochondria
Why is an ecosystem's net primary production (NPP) lower than its gross primary production (GPP)?
Net primary production (NPP) is lower than gross primary production (GPP) because not all of the energy captured through photosynthesis is available for growth and reproduction. Some of the energy is used by plants for their own metabolic processes, such as respiration. Additionally, a portion of the energy is lost as heat during these metabolic processes. Therefore, NPP represents the amount of energy available for consumption by herbivores and higher trophic levels.
If a caterpillar is a primary consumer what level will energy flow to next after the caterpillar?
Secondary Consumer
What is the primary purpose of the receptor proteins located within a cell membrane?
energy production
What is plankton on a food web?
Primary production, create energy, provide food, and so on.
What is used to indicate the flow of energy in food chain or web?
What is used to indicate the flow of energy in a food chain or web
How is carbon related to the flow of energy between the environment and organism?
There are several different factors that control the primary productivity of energy and biomass flow. Energy flow is the amount of energy that moves through a food chain. The energy input, or energy that enters the ecosystem, is measured in Joules or calories. Accordingly, the energy flow is also called calorific flow. In the study of energy flow, ecologists try to quantify the importance of different species and feeding relationships.
What is the difference between gross primary productivity and net primary productivity?
Gross primary production consists of the amount of light energy that is converted to chemical energy by photosynthesis per unit of time. This chemical energy is going to two places-- respiration and growth of new biomass. Net primary production omits the energy used in respiration... just the energy going to new plant growth. Mathematically: (R = respiration) NPP = GPR - R
Compare and contrast the roles of plants and animals in the flow of energy in the living world?
Generally, in the ecosystem plants function as primary producers of biological energy in the form of sugars, starches, lipids and proteins (autotrophs), while animals are the heterotrophic consumers of this production. Therefore, energy generally flows from plants to animals.
What is the role of a primary producer in a food chain?
Primary production is the production of organic compounds from atmospheric or aquatic carbon dioxide. It may occur through the process of photosynthesis, using light as a source of energy, or chemosynthesis, using the oxidation or reduction of chemical compounds as a source of energy. Almost all life on earth is directly or indirectly reliant on primary production. The organisms responsible for primary production are known as primary producers or autotrophs, and form the base of the food chain. In terrestrial ecoregions, these are mainly plants, while in aquatic ecoregions algae are primarily responsible. Primary production is distinguished as either net or gross, the former accounting for losses to processes such as cellular respiration, the latter not.
