Which are examples of different energy roles in a food chain?

potential, kinetic, and chemical

Flow Of Energy/recycling Of Matter Review I

2.

Check all that apply! Energy

Comes to the earth in the form of sunlight.
Is endlessly recycled on earth because the earth is an open system.
Is endlessly recycled on earth because the earth is a closed system.
Must be converted into a form that organisms can use by the producers on earth.
Is made available to consumers through food chains.

Correct Answer(s)

A. Comes to the earth in the form of sunlight.
A. Must be converted into a form that organisms can use by the producers on earth.
A. Is made available to consumers through food chains.

Explanation

Energy comes to the earth in the form of sunlight because sunlight is a major source of energy for the earth. It must be converted into a form that organisms can use by the producers on earth, such as plants through photosynthesis. This converted energy is then made available to consumers through food chains, as organisms consume other organisms to obtain energy.

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3.

Which "ation" word refers to when water vapor loses energy and turns back into water droplets?

Precipitation
Respiration
Transpiration
Condensation

Correct Answer

A. Condensation

Explanation

Condensation refers to the process in which water vapor loses energy and turns back into water droplets. This occurs when the temperature of the air decreases, causing the water vapor to condense and form visible water droplets. Precipitation refers to any form of water that falls from the atmosphere to the Earth's surface, such as rain, snow, or hail. Respiration is the process by which organisms convert oxygen and glucose into energy, while transpiration is the process by which plants release water vapor into the atmosphere through their leaves. Therefore, the correct answer is condensation.

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4.

Which two substances are created during photosynthesis?

Carbon dioxide and oxygen
Glucose and carbon dioxide
Glucose and water
Glucose and oxygen

Correct Answer

A. Glucose and oxygen

Explanation

During photosynthesis, plants convert sunlight, water, and carbon dioxide into glucose and oxygen. Glucose is a sugar molecule that serves as a source of energy for the plant, while oxygen is released as a byproduct. Therefore, the correct answer is glucose and oxygen.

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5.

Which type of organism can convert free nitrogen into nitrogen compounds?

Plants
Producers
Fungi
Bacteria

Correct Answer

A. Bacteria

Explanation

Bacteria are capable of converting free nitrogen into nitrogen compounds through a process called nitrogen fixation. They have the ability to convert atmospheric nitrogen gas into a form that can be used by other organisms, such as plants. This is an important process as nitrogen is an essential nutrient for the growth and development of living organisms. Plants, producers, and fungi do not have this ability, making bacteria the correct answer.

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6.

The gas responsible for turning bromothymol blue to bromothymol yellow in our snail lab was

Oxygen
Nitrogen
Carbon
Carbon dioxide

Correct Answer

A. Carbon dioxide

Explanation

In our snail lab, bromothymol blue changed from blue to yellow, indicating a change in pH. Carbon dioxide is known to dissolve in water and form carbonic acid, which lowers the pH and causes the color change. Oxygen, nitrogen, and carbon do not have the same effect on pH, so they cannot be responsible for the color change. Therefore, the gas responsible for turning bromothymol blue to bromothymol yellow in our snail lab was carbon dioxide.

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7.

Which gas makes up most of the earth's atmosphere?

Oxygen
Carbon dioxide
Ammonium
Free nitrogen

Correct Answer

A. Free nitrogen

Explanation

Free nitrogen makes up most of the earth's atmosphere. This is because nitrogen gas (N2) is the most abundant gas in the atmosphere, comprising about 78% of the total volume. Oxygen, carbon dioxide, and ammonium are present in much smaller quantities compared to nitrogen.

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8.

Check all that apply to what we know about N₂

Formula for free nitrogen gas in the air
Made of 2 molecules
Made of 2 atoms
Element
Compound

Correct Answer(s)

A. Formula for free nitrogen gas in the air
A. Made of 2 atoms
A. Element

Explanation

The correct answer choices are "formula for free nitrogen gas in the air," "made of 2 atoms," and "element." These choices accurately describe what we know about N2. Nitrogen gas (N2) is the formula for free nitrogen gas in the air, meaning it is the chemical formula that represents nitrogen gas in its natural state. It is made up of two atoms of nitrogen, as indicated by "made of 2 atoms." Lastly, nitrogen (N) is an element, as it is a pure substance that cannot be broken down into simpler substances.

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9.

Producers are an important part of what cycle(s)?

Carbon
Carbon and water
Carbon, water, nutrient
Carbon, water, nutrient, and nitrogen

Correct Answer

A. Carbon, water, nutrient, and nitrogen

Explanation

Producers are organisms that convert sunlight into energy through the process of photosynthesis. In order to carry out this process, producers require carbon dioxide from the atmosphere, water from the environment, and nutrients from the soil. Additionally, nitrogen is also an essential nutrient for producers, as it is needed for the synthesis of proteins and nucleic acids. Therefore, producers are an important part of the carbon, water, nutrient, and nitrogen cycles.

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10.

Lightning helps to recycle what element?

Carbon
Water
Nitrogen
Oxygen

Correct Answer

A. Nitrogen

Explanation

Lightning helps to recycle nitrogen. During a lightning strike, the high temperature and energy cause the nitrogen gas in the atmosphere to react with oxygen and form nitrogen oxides. These nitrogen oxides then dissolve in rainwater and fall to the ground, where they can be absorbed by plants and used to make proteins. Eventually, the nitrogen is returned to the soil and can be reused by other organisms in the ecosystem.

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Flow Of Energy/Recycling Of Matter Review I

Which are examples of different energy roles in a food chain?

Quiz Preview

Check all that apply! Energy

Which "ation" word refers to when water vapor loses energy and turns back into water droplets?

Which two substances are created during photosynthesis?

Which type of organism can convert free nitrogen into nitrogen compounds?

The gas responsible for turning bromothymol blue to bromothymol yellow in our snail lab was

Which gas makes up most of the earth's atmosphere?

Check all that apply to what we know about N₂

Producers are an important part of what cycle(s)?

Lightning helps to recycle what element?

Flow Of Energy/Recycling Of Matter Review I

Which are examples of different energy roles in a food chain?

Quiz Preview

Check all that apply! Energy

Which "ation" word refers to when water vapor loses energy and turns back into water droplets?

Which two substances are created during photosynthesis?

Which type of organism can convert free nitrogen into nitrogen compounds?

The gas responsible for turning bromothymol blue to bromothymol yellow in our snail lab was

Which gas makes up most of the earth's atmosphere?

Check all that apply to what we know about N2

Producers are an important part of what cycle(s)?

Lightning helps to recycle what element?

Check all that apply to what we know about N₂