What is the process by which the concentration of a contaminant increases as it moves up the food chain quizlet?

Bioaccumulation occurs within a trophic level, and is the increase in concentration of a substance in certain tissues of organisms' bodies due to absorption from food and the environment.

What is the process by which the concentration of a contaminant increases as it moves up the food chain?

Biomagnification, also known as bioamplification or biological magnification, is any concentration of a toxin, such as pesticides, in the tissues of tolerant organisms at successively higher levels in a food chain.

What process does biomagnification describe quizlet?

Biomagnification is a process in which the concentration of a toxicant is greatly magnified through each step up the food chain. For example, DDT, a commonly used pesticide, ran off land into waterways and was taken up by aquatic producers called phytoplankton.

Which type of pollutant is more concentrated near the top of a food chain?

At each trophic level of the food chain, the toxins remain in the tissues of the animals - so the concentration of toxin becomes most concentrated in the body tissues of the animals at the top of the food chain.

What is the meaning of bioaccumulation?

Bioaccumulation is defined as the net accumulation of a contaminant in or on an organism from all sources including water, air, and diet (Newman and Unger, 2003).

What is Bioaccumulation - More Science on the Learning Videos Channel

What is the process of bioaccumulation?

Bioaccumulation is a process of accumulation of chemicals in an organism that takes place if the rate of intake exceeds the rate of excretion. Chemicals are introduced into the organism through exposure to the abiotic environment (soil, water, air) or as dietary intake (trophic transfer).

What is biomagnification and bioaccumulation?

Bioaccumulation takes place in a single organism over the span of its life, resulting in a higher concentration in older individuals. Biomagnification takes place as chemicals transfer from lower trophic levels to higher trophic levels within a food web, resulting in a higher concentration in apex predators.

When the concentration of something increases along a food chain?

The term food web biomagnification is used to describe trophic enrichment of contaminants within food webs and refers to the progressive increase in chemical concentrations with increasing animal trophic status.

What is biomagnification pollution?

Biomagnification occurs when the concentration of a pollutant increases from one link in the food chain to another (i.e. polluted fish will contaminate the next consumer and continues up a tropic food web as each level consumes another) and will result in the top predator containing the highest concentration levels.

Which of the following is an example of pollutants whose concentration increases in each trophic level?

An example is DDT whose concentration increases at each trophic level.

In what process is the concentration of a pollutant multiplied as it passes up the food chain from producers to consumers?

Bioaccumulation occurs within a trophic level, and is the increase in concentration of a substance in certain tissues of organisms' bodies due to absorption from food and the environment. Thus, bioconcentration and bioaccumulation occur within an organism, and biomagnification occurs across trophic (food chain) levels.

What is bioaccumulation and biomagnification quizlet?

Terms in this set (5)

Bioaccumulation. The gradual build-up of chemicals in living organisms. Biomagnification. The process in which chemicals not only accumulate but become more concentrated at each trophic level.

What is bioaccumulation quizlet?

bioaccumulation definition. an increase in the concentration of a chemical in a biological organism over time, compared to the chemical's concentration in the environment.

What is eutrophication and biomagnification?

Biological magnification is the process by which the level of concentration of toxic compound increases and accumulates along a food chain into higher levels while eutrophication is the process by which the excessive growth of algae occurs due to release of nutrients including nitrates and phosphates into water bodies ...

What is bioaccumulation and Bioamplification?

Bioaccumulation is the process by which toxins enter the food web by building up in individual organisms, while biomagnification is the process by which toxins are passed from one trophic level to the next (and thereby increase in concentration) within a food web.

What is biomagnification in simple words?

“Biomagnification or biological magnification is the process of accumulation of certain chemicals in living organisms to a concentration higher than that occurring in the inorganic, non-living environment.”

How does biomagnification affect a food chain?

This is biomagnification, and it means that higher-level predators-fish, birds, and marine mammals-build up greater and more dangerous amounts of toxic materials than animals lower on the food chain.

What causes biomagnification?

Biomagnification happens when toxic chemicals, like DDT, whose remains in the environment are consumed indirectly by organisms through food. When an organism in the higher food chain consumes the lower organism containing such chemicals, the chemicals can get accumulated in the higher organism.

What is bioaccumulation and biomagnification explain with example?

When DDT enters aquatic bodies, it gets build up in the body of fishes and this is known as bioaccumulation. When fishes are eaten by animals of higher trophic levels, concentration of DDT is increased at each successive trophic level and this is known as biomagnification.

What is biomagnification and examples?

Biomagnification is defined as the accumulation of a particular substance in the body of the organisms at different trophic levels of a food chain. One example of biomagnification is the accumulation of insecticide DDT which gets accumulated in zooplanktons. Small fishes consume these zooplanktons.

What is difference between bioaccumulation and bioconcentration?

Bioconcentration describes the accumulation of a water-borne chemical by an aquatic organism, whereas bioaccumulation covers the uptake from all environmental sources, e.g. water, food and sediment.

What is another word for bioaccumulation?

Bioaccumulation synonyms

In this page you can discover 4 synonyms, antonyms, idiomatic expressions, and related words for bioaccumulation, like: biomagnification, toxicant, organochlorine and allergenicity.

What is bioaccumulation GCSE biology?

Bioaccumulation is the build-up of toxic chemicals at higher stages in a food chain. Toxic chemicals are poisonous and harm organisms in their habitat. Bioaccumulation occurs when toxins cannot be excreted.

Does bioaccumulation always lead to biomagnification?

Fortunately, bioaccumulation does not always result in biomagnification . Bioaccumulation is a normal and essential process for the growth and nurturing of organisms.