Middle School Life Science : Explain the cycling of matter and energy in photosynthesis

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Example Questions

Example Question #1 : Explain The Cycling Of Matter And Energy In Photosynthesis

How do organisms get the energy they need?

 

Possible Answers:

Plants use energy from sunlight to make sugar molecules. Animals get energy from eating other organisms.

Plants do not need energy because they do not move. Animals get energy from food.

Plants get energy from fertilizers. Animals get energy from water.

Plants get energy from the soil. Animals get energy directly from sunlight.

Correct answer:

Plants use energy from sunlight to make sugar molecules. Animals get energy from eating other organisms.

Explanation:

The answer is: Plants use energy from sunlight to make sugar molecules. Animals get energy from eating other organisms.

Photosynthesis is the process where plants use energy from the sun to create their own food. This is why plants are referred to as producers. In the process of photosynthesis, the energy from sunlight, carbon dioxide, and water are converted into sugar and oxygen through chemical reactions in plant cells. Animals do not produce their own energy, but have to eat plants or other animals to stay alive. Animals breathe in the oxygen created by photosynthesis and exhale carbon dioxide as a product through their own process called cellular respiration.

 

Example Question #2 : Explain The Cycling Of Matter And Energy In Photosynthesis

Why are animals important to the process of photosynthesis?

 

Possible Answers:

Animals digest food which makes the starting materials for photosynthesis

Animals breathe out carbon dioxide which is a starting material for photosynthesis.

Animals produce energy in the form of heat, which plants use for photosynthesis.

Animals eat plants which makes space for more plants to grow.

Correct answer:

Animals breathe out carbon dioxide which is a starting material for photosynthesis.

Explanation:

The answer is: Animals breathe out carbon dioxide which is a starting material for photosynthesis.

Photosynthesis is the process where plants use energy from the sun to create their own food. This is why plants are referred to as producers. In the process of photosynthesis, the energy from sunlight, carbon dioxide, and water are converted into sugar and oxygen through chemical reactions in plant cells. Animals do not produce their own energy, but have to eat plants or other animals to stay alive. Animals breathe in the oxygen created by photosynthesis and exhale carbon dioxide as a product through their own process called cellular respiration.

 

Example Question #31 : Middle School Life Science

Which of these are the reactants in the chemical equation for photosynthesis?

Possible Answers:

CO2 and H2O

CO2 and OH2

CO2 and Sunlight

Sunlight and H2O

Correct answer:

CO2 and H2O

Explanation:

The answer is CO2 and H2O.

Photosynthesis is the process where plants use energy from the sun to create their own food. This is why plants are referred to as producers. In the process of photosynthesis, the energy from sunlight, carbon dioxide, and water are converted into sugar and oxygen through chemical reactions in plant cells. Animals do not produce their own energy, but have to eat plants or other animals to stay alive. Animals breathe in the oxygen created by photosynthesis and exhale carbon dioxide as a product through their own process called cellular respiration.

Example Question #1 : Explain The Cycling Of Matter And Energy In Photosynthesis

Which of these are products in the chemical equation for photosynthesis?

Possible Answers:

CO2 and H2O

C6H12Oand CO2

C6H12O6 and O2

C6H12O6 only 

Correct answer:

C6H12O6 and O2

Explanation:

The answer is C6H12O6 and O2.

 

Example Question #2 : Explain The Cycling Of Matter And Energy In Photosynthesis

Which of these organisms uses energy from the sun to make its own food?

Possible Answers:

both of these

a producer 

an oak tree

neither of these

Correct answer:

both of these

Explanation:

The answer is both of these.

Photosynthesis is the process where plants use energy from the sun to create their own food. This is why plants are referred to as producers. In the process of photosynthesis, the energy from sunlight, carbon dioxide, and water are converted into sugar and oxygen through chemical reactions in plant cells. Animals do not produce their own energy, but have to eat plants or other animals to stay alive. Animals breathe in the oxygen created by photosynthesis and exhale carbon dioxide as a product through their own process called cellular respiration.

Example Question #5 : Explain The Cycling Of Matter And Energy In Photosynthesis

When an organism grows, it requires matter and energy. Animals get these by consuming plants or other animals. Where do plants get their matter and energy?

Possible Answers:

from chemical reactions that use energy from sunlight

all of these

from water in the ground

from nutrients in the soil

Correct answer:

all of these

Explanation:

The answer is all of these.

Photosynthesis is the process where plants use energy from the sun to create their own food. This is why plants are referred to as producers. In the process of photosynthesis, the energy from sunlight, carbon dioxide, and water are converted into sugar and oxygen through chemical reactions in plant cells. Animals do not produce their own energy, but have to eat plants or other animals to stay alive. Animals breathe in the oxygen created by photosynthesis and exhale carbon dioxide as a product through their own process called cellular respiration.

Example Question #6 : Explain The Cycling Of Matter And Energy In Photosynthesis

Photosynthesis is:

Possible Answers:

The process where plants use energy from the sun to make the ground full of more nutrients

The process where plants use energy from the sun to create their own food

The process of animal respiration

The use of chemical reactions to make photographs

Correct answer:

The process where plants use energy from the sun to create their own food

Explanation:

The answer is "the process where plants use energy from the sun to create their own food."

This process is why plants are referred to as producers. In the process of photosynthesis, the energy from sunlight, carbon dioxide, and water are converted into sugar and oxygen through chemical reactions in plant cells. Animals do not produce their own energy, but have to eat plants or other animals to stay alive. Animals breathe in the oxygen created by photosynthesis and exhale carbon dioxide as a product through their own process called cellular respiration.

Example Question #7 : Explain The Cycling Of Matter And Energy In Photosynthesis

Screen shot 2020 06 02 at 6.15.09 pm

What product of photosynthesis is missing in the empty box from the image above?

Possible Answers:

Potassium

Energy

Magnesium

Oxygen

Correct answer:

Oxygen

Explanation:

The answer is Oxygen. 

Photosynthesis is the process where plants use energy from the sun to create their own food. This is why plants are referred to as producers. In the process of photosynthesis, the energy from sunlight, carbon dioxide, and water are converted into sugar and oxygen through chemical reactions in plant cells. Animals do not produce their own energy, but have to eat plants or other animals to stay alive. Animals breathe in the oxygen created by photosynthesis and exhale carbon dioxide as a product through their own process called cellular respiration.

Example Question #8 : Explain The Cycling Of Matter And Energy In Photosynthesis

Screen shot 2020 06 03 at 10.29.50 am

The image above shows the cycling of matter and energy through photosynthesis. How is energy lost in this cycle?

Possible Answers:

Energy is used to help plants grow.

Energy is expended in the activity of animals. 

Energy is lost in heat in chemical reactions.

All of these

Correct answer:

All of these

Explanation:

The answer is all of these. 

Photosynthesis is the process where plants use energy from the sun to create their own food. This is why plants are referred to as producers. In the process of photosynthesis, the energy from sunlight, carbon dioxide, and water are converted into sugar and oxygen through chemical reactions in plant cells. Animals do not produce their own energy, but have to eat plants or other animals to stay alive. Animals breathe in the oxygen created by photosynthesis and exhale carbon dioxide as a product through their own process called cellular respiration.

Example Question #9 : Explain The Cycling Of Matter And Energy In Photosynthesis

Screen shot 2020 06 03 at 10.29.50 am

The image above shows the cycling of matter and energy through photosynthesis. How is energy lost in this cycle?

Possible Answers:

All of these

Energy is used to help plants grow.

Energy is lost in heat in chemical reactions.

Energy is expended in the activity of animals. 

Correct answer:

All of these

Explanation:

The answer is all of these. 

Photosynthesis is the process where plants use energy from the sun to create their own food. This is why plants are referred to as producers. In the process of photosynthesis, the energy from sunlight, carbon dioxide, and water are converted into sugar and oxygen through chemical reactions in plant cells. Animals do not produce their own energy, but have to eat plants or other animals to stay alive. Animals breathe in the oxygen created by photosynthesis and exhale carbon dioxide as a product through their own process called cellular respiration.

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