Explain the cycling of matter and energy in photosynthesis
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Middle School Life Science › Explain the cycling of matter and energy in photosynthesis
Photosynthesis is:
The process where plants use energy from the sun to create their own food
The process where plants use energy from the sun to make the ground full of more nutrients
The use of chemical reactions to make photographs
The process of animal respiration
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.
The image above shows the cycling of matter and energy through photosynthesis. How is energy lost in this cycle?
Energy is used to help plants grow.
Energy is lost in heat in chemical reactions.
Energy is expended in the activity of animals.
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.
Which of these organisms uses energy from the sun to make its own food?
an oak tree
a producer
both of these
neither 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.
The image above shows the cycling of matter and energy through photosynthesis. How is energy lost in this cycle?
Energy is used to help plants grow.
Energy is lost in heat in chemical reactions.
Energy is expended in the activity of animals.
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.
What product of photosynthesis is missing in the empty box from the image above?
Oxygen
Energy
Magnesium
Potassium
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.
How do organisms get the energy they need?
Plants get energy from the soil. Animals get energy directly from sunlight.
Plants get energy from fertilizers. Animals get energy from water.
Plants do not need energy because they do not move. Animals get energy from food.
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.
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?
from nutrients in the soil
from chemical reactions that use energy from sunlight
from water in the ground
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.
Which of these are products in the chemical equation for photosynthesis?
CO2 and H2O
C6H12O6 and O2
C6H12O6 and CO2
C6H12O6 only
Explanation
The answer is C6H12O6 and O2.
Why are animals important to the process of photosynthesis?
Animals eat plants which makes space for more plants to grow.
Animals digest food which makes the starting materials for photosynthesis
Animals produce energy in the form of heat, which plants use for photosynthesis.
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.
Which of these are the reactants in the chemical equation for photosynthesis?
CO2 and H2O
Sunlight and H2O
CO2 and Sunlight
CO2 and OH2
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.