Finding The Energy Test-all Questions
(39).webp "Finding The Energy Test-all Questions - Quiz")
Questions and Answers
- 1.
What is food?
- A.
Energy lacking substances
- B.
Energy rich
- C.
Energy rich carbohydrates
- D.
Energy rich calories
Correct Answer
C. Energy rich carbohydratesExplanation
Food is defined as any substance that provides nutrients and energy to the body. Energy-rich carbohydrates are a type of food that provides the body with a high amount of energy. Carbohydrates are broken down into glucose, which is the primary source of energy for the body. Therefore, energy-rich carbohydrates are an essential component of a balanced diet as they provide the necessary fuel for bodily functions and physical activity.Rate this question:
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- 2.
Energy in food is measured in what?
- A.
Kilograms
- B.
Carbohydrates
- C.
Calories
- D.
Caloric intake
Correct Answer
C. CaloriesExplanation
Energy in food is measured in calories. Calories are a unit of measurement used to quantify the amount of energy that is obtained from consuming food. The body uses this energy to perform various functions such as metabolism, physical activity, and maintaining bodily functions. Therefore, calories are the appropriate unit of measurement to determine the energy content of food.Rate this question:
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- 3.
Plants require which materials to perform photosynthesis?
- A.
H20, CO2, O2, sunlight
- B.
CO2, H2O, sunlight
- C.
CO2, H20, N2, sunlight
- D.
H2O, CO2, O2, N, sunlight
Correct Answer
B. CO2, H2O, sunlightExplanation
Plants require CO2, H2O, and sunlight to perform photosynthesis. CO2 is needed as a source of carbon, which is used to build organic molecules. H2O is required as a source of hydrogen, which is used to produce glucose and release oxygen. Sunlight is essential for providing the energy needed to drive the photosynthesis process.Rate this question:
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- 4.
Producers perform photosynthesis to produce energy primarily for other organisms to use.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Producers perform photosynthesis to produce energy primarily for themselves to use, not for other organisms. Photosynthesis is the process by which plants and some other organisms convert sunlight into chemical energy in the form of glucose. This energy is then used by the producers for their own growth, reproduction, and other metabolic processes. While other organisms can indirectly benefit from this energy by consuming producers, the primary purpose of photosynthesis is to provide energy for the producers themselves.Rate this question:
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- 5.
Trophic levels are determined by the feeding relationships of organisms.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Trophic levels are determined by the feeding relationships of organisms. This means that organisms are grouped into different levels based on what they eat and what eats them. The lowest trophic level consists of primary producers, such as plants, that make their own food through photosynthesis. The next level consists of herbivores that eat the primary producers. The next level consists of carnivores that eat the herbivores, and so on. This hierarchical arrangement of feeding relationships helps to define the flow of energy and nutrients through an ecosystem. Therefore, the statement "Trophic levels are determined by the feeding relationships of organisms" is true.Rate this question:
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- 6.
What are the levels of a food web?
- A.
Feeding relationships
- B.
Trophic levels
- C.
Tropical levels
- D.
Energy levels
Correct Answer
B. Trophic levelsExplanation
Trophic levels refer to the different levels in a food web where organisms obtain their energy. It represents the flow of energy from one organism to another in an ecosystem. Each trophic level represents a different feeding level, starting with the producers (plants) at the bottom, followed by primary consumers (herbivores), secondary consumers (carnivores), and so on. The trophic levels help to illustrate the transfer of energy and nutrients through the food chain, highlighting the interdependence and relationships between different organisms in an ecosystem.Rate this question:
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- 7.
After burning the snacks, which one did we determine had the most energy?
- A.
Chex mix
- B.
Rice crispy treat
- C.
Sun chip
- D.
Cheezit
Correct Answer
C. Sun chipExplanation
The question is asking about the snack that had the most energy after being burned. Since the answer is "sun chip," it implies that when the sun chip was burned, it released the most energy compared to the other snacks.Rate this question:
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- 8.
What is biomass?
- A.
The total mass of all the photosynthetic organism in an ecosystem
- B.
The total mass of the consumers in an ecosystem
- C.
The total mass of all biotic factors
- D.
The total mass of abiotic factors in an ecosystem
Correct Answer
A. The total mass of all the photosynthetic organism in an ecosystemExplanation
Biomass refers to the total mass of all the photosynthetic organisms in an ecosystem. This includes plants, algae, and other organisms that are capable of converting sunlight into energy through the process of photosynthesis. Biomass is an important measure of the productivity and energy flow within an ecosystem, as it represents the amount of organic material available as a food source for other organisms. By measuring biomass, scientists can gain insights into the overall health and functioning of an ecosystem.Rate this question:
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- 9.
How much energy transfers from one trophic level to the next?
- A.
1 calorie
- B.
100%
- C.
1 Calorie
- D.
10%
Correct Answer
D. 10%Explanation
The correct answer is 10%. This is because energy transfer between trophic levels is not efficient, and only about 10% of the energy from one trophic level is passed on to the next. The rest of the energy is lost as heat or used by organisms for their own metabolic processes. This is known as the 10% rule and helps explain why food chains and food webs are limited in length and complexity.Rate this question:
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- 10.
A 20 lb. biomass coyote would need to eat how many pounds of biomass of birds?
- A.
20 pounds
- B.
20,000 pounds
- C.
200 pounds
- D.
2 pounds
Correct Answer
C. 200 poundsExplanation
A 20 lb. biomass coyote would need to eat 200 pounds of biomass of birds because the biomass of the coyote is 20 pounds and it needs to consume 10 times its own biomass to sustain itself.Rate this question:
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- 11.
Organisms get the energy they need by eating other organisms, or making their own food.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Organisms obtain the energy they require either by consuming other organisms or by producing their own food. This process is known as energy acquisition. Through eating, organisms can obtain energy-rich molecules from the food they consume. On the other hand, certain organisms, such as plants, are capable of producing their own food through photosynthesis, where they convert sunlight into energy-rich molecules. Therefore, the statement "Organisms get the energy they need by eating other organisms, or making their own food" is true.Rate this question:
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- 12.
When organisms eat producers, they get energy from the carbohydrates that the plant produced.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
When organisms consume producers, such as plants, they obtain energy from the carbohydrates that the plants have produced through photosynthesis. Carbohydrates are a type of organic compound that serve as a primary source of energy for living organisms. Through the process of digestion, organisms break down these carbohydrates into simpler forms, such as glucose, which can be utilized by their cells to produce ATP (adenosine triphosphate), the energy currency of cells. Therefore, it is true that organisms derive energy from the carbohydrates produced by plants when they consume them.Rate this question:
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- 13.
When a plant makes a carbohydrate such as glucose, where is the energy stored?
- A.
In the carbon atoms
- B.
In the oxygen atoms
- C.
In the hydrogen atoms
- D.
In the bonds that hold the atoms together
Correct Answer
D. In the bonds that hold the atoms togetherExplanation
When a plant makes a carbohydrate such as glucose, the energy is stored in the bonds that hold the atoms together. This is because when glucose is formed, energy is required to break the existing bonds between carbon, hydrogen, and oxygen atoms in the reactant molecules. This energy is then stored in the newly formed bonds of glucose, which can be later released when these bonds are broken during cellular respiration, providing energy for the plant's metabolic processes.Rate this question:
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- 14.
6 CO2 + 6 H2O + sunlight --> C6H12O6 + O2
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The given equation represents photosynthesis, the process by which plants convert carbon dioxide, water, and sunlight into glucose (C6H12O6) and oxygen. This process occurs in the chloroplasts of plant cells and is essential for the production of food and oxygen in the ecosystem. Therefore, the statement "6 CO2 + 6 H2O + sunlight --> C6H12O6 + O2" being true is accurate.Rate this question:
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- 15.
Organims that make their own food are
- A.
Producers
- B.
Consumers
- C.
Decomposers
- D.
Photosynthesis
Correct Answer
A. ProducersExplanation
Producers are organisms that have the ability to make their own food through the process of photosynthesis or chemosynthesis. They convert sunlight or inorganic compounds into organic matter, such as glucose, which can be used as a source of energy. Examples of producers include plants, algae, and some bacteria. Consumers, on the other hand, obtain their energy by consuming other organisms, while decomposers break down dead organic material. Therefore, the correct answer is producers.Rate this question:
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- 16.
The total amount of energy captured in an ecosystem by all the producers.
- A.
Net production
- B.
Biomass
- C.
Gross production
- D.
Trophic levels
Correct Answer
C. Gross productionExplanation
Gross production refers to the total amount of energy captured by all the producers in an ecosystem. It represents the total energy that is available for consumption by other organisms in higher trophic levels. Gross production includes the energy that is used by the producers for their own metabolism as well as the energy that is stored in their biomass. It is an important measure of the productivity and energy flow within an ecosystem.Rate this question:
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- 17.
The amount of energy available for use at the next trophic level.
- A.
Net production
- B.
Biomass
- C.
Gross production
- D.
Trophic levels
Correct Answer
A. Net productionExplanation
Net production refers to the amount of energy that is available for use by the next trophic level. It represents the energy that is left after the organisms have used some of the energy for their own metabolic processes. Net production is an important measure of the energy transfer between trophic levels in an ecosystem, as it indicates the amount of energy that is available for higher-level consumers to feed on.Rate this question:
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- 18.
The second trophic level is made up of what?
- A.
Producers
- B.
Primary consumers
- C.
Secondary consumers
- D.
Decomposers
Correct Answer
B. Primary consumersExplanation
The second trophic level is made up of primary consumers. This is because primary consumers are the organisms that directly consume the producers (plants) for energy. They are herbivores that feed on plants and algae. In a food chain, they occupy the second position after the producers. They are essential in transferring energy from the producers to the higher trophic levels, such as secondary consumers.Rate this question:
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- 19.
Energy is released in the form of what?
- A.
Carbohydrates
- B.
Heat
- C.
Photosynthesis
- D.
Glucose
Correct Answer
B. HeatExplanation
When energy is released, it is often in the form of heat. Heat is a form of energy that is produced when there is a transfer of thermal energy between objects or systems. This transfer of energy can occur through various processes such as combustion, chemical reactions, or even physical movement. In the context of the given options, carbohydrates, photosynthesis, and glucose are all sources or processes related to energy production, but heat is the most common form in which energy is released.Rate this question:
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- 20.
If a group of California Gulls consumes 45 pounds biomass of brine shrimp, how much biomass of energy is passed to the Gulls?
- A.
450 pounds
- B.
45 pounds
- C.
4.5 pounds
- D.
.45 pounds
Correct Answer
C. 4.5 poundsExplanation
The correct answer is 4.5 pounds because biomass refers to the total mass of living organisms in a given area or ecosystem. In this case, if the California Gulls consume 45 pounds of brine shrimp biomass, it means that they are obtaining energy from the brine shrimp. Therefore, the biomass of energy passed to the Gulls would be 4.5 pounds.Rate this question:
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