IBDP ESS Bioaccumulation and Biomagnification Quiz

What is bioaccumulation in aquatic ecosystems?

• The movement of substances from non-living sources to living organisms in aquatic ecosystems.

• The gradual accumulation of non-biodegradable toxic substances in living organisms in aquatic ecosystems.

• The sudden release of substances in living organisms in aquatic ecosystems.

• The process of reducing substances in living organisms in aquatic ecosystems.

Explain the process of biomagnification in food chains.

• Biomagnification occurs only in aquatic food chains, not in terrestrial food chains.

• Biomagnification is the process by which the concentration of a substance remains the same as it moves up the food chain.

• Biomagnification is the process by which the concentration of a substance increases as it moves up the food chain.

• Biomagnification is the process by which the concentration of a substance decreases as it moves up the food chain.

How does bioaccumulation impact human health?

• Bioaccumulation can lead to higher levels of toxins in organisms that humans consume, impacting human health.

• Bioaccumulation only impacts the health of non-human organisms

• Bioaccumulation leads to lower levels of toxins in organisms that humans consume

• Bioaccumulation has no impact on human health

List and explain the factors affecting bioaccumulation.

• Color of the organism, type of food consumed, weather conditions

• Size of the organism, geographical location, time of day

• Chemical properties of the substance, organism's metabolism, environment, and duration of exposure

• Age of the organism, level of physical activity, social interactions

What are the regulatory measures to control bioaccumulation?

• Setting limits on the release of pollutants, implementing monitoring and reporting requirements, and enforcing penalties for non-compliance

• Encouraging the release of pollutants

• Ignoring monitoring and reporting requirements

• Rewarding non-compliance

Why is bioaccumulation more prominent in aquatic ecosystems?

• Pollutants and toxins are more easily absorbed and concentrated in water compared to air or land.

• There are fewer predators to control the population of bioaccumulating organisms in water

• Bioaccumulation is actually less prominent in aquatic ecosystems

• Aquatic organisms have a natural resistance to pollutants

Do trophic levels play a role in biomagnification?

• Biomagnification occurs independently of trophic levels

• Trophic levels play a crucial role in biomagnification.

• Trophic levels have no impact on biomagnification

• Trophic levels only affect certain species in biomagnification

How do pollutants contribute to bioaccumulation?

• Pollutants are broken down and eliminated by organisms quickly.

• Pollutants have no impact on bioaccumulation in organisms.

• Pollutants are absorbed by organisms and accumulate in their tissues over time.

• Pollutants are only found in the environment and do not affect organisms.

Explain the concept of half-life in the context of bioaccumulation.

• Half-life in bioaccumulation is the term used to describe the time it takes for an organism to reach half of its full size due to the accumulation of nutrients.

• Half-life in bioaccumulation is the process of reducing an organism's lifespan by half due to the accumulation of toxins.

• The concept of half-life in bioaccumulation refers to the time it takes for a substance to reduce to half of its original concentration in a living organism.

• The concept of half-life in bioaccumulation refers to the time it takes for a substance to increase to double its original concentration in a living organism.

What are the potential solutions to reduce bioaccumulation in the environment?

• Use more chemical pesticides

• Increase the use of plastic products

• Implement proper waste management practices

• Dump waste directly into water bodies