WorksheetsPhotosynthesis, Cellular Respiration, and Carbon Cycle Study
Total questions: 18
Worksheet time: 10mins
What is the main purpose of photosynthesis?
To produce oxygen
To convert solar energy into chemical energy
To break down glucose
To release carbon dioxide
Which organelle is responsible for photosynthesis in plant cells?
Mitochondria
Ribosome
Chloroplast
Nucleus
Which gas is a byproduct of photosynthesis?
Carbon dioxide
Oxygen
Nitrogen
Methane
Where does cellular respiration primarily occur in eukaryotic cells?
Chloroplast
Mitochondria
Golgi apparatus
Endoplasmic reticulum
What is the main product of cellular respiration?
Glucose
Oxygen
ATP (Adenosine Triphosphate)
Lactic acid
Which process releases carbon dioxide as a waste product?
Photosynthesis
Cellular respiration
What is the primary source of energy for the Earth's ecosystems?
The Moon
The Sun
Chemical reactions
Geothermal energy
Which of the following best describes the carbon cycle?
The flow of oxygen through the biosphere
The movement of carbon through the atmosphere, hydrosphere, lithosphere, and biosphere
The cycling of nitrogen through the atmosphere
The water cycle
Which molecule acts as the main energy currency in cells?
Glucose
ATP (Adenosine Triphosphate)
DNA
RNA
How do human activities impact the carbon cycle?
They decrease the amount of carbon in the atmosphere
They have no impact on the carbon cycle
They increase the amount of carbon in the atmosphere
They convert carbon into helium
Which of the following is NOT a step in the carbon cycle?
Photosynthesis
Decomposition
Combustion
Precipitation
How do trees obtain energy?
they produce food through photoynthesis
they eat grass
they absorb nutrients from decomposing pants and animals
they eat animals
In which part of the plant cell does photosynthesis take place?
Nucleus
Mitochondria
Chloroplast
Ribosome
6CO2 + light + 6H2O --> 6O2 + Glucose
6CO2 + sugar + 6H2O -----> 6O2 + light
6O2+ light + 6H2O --> 6CO2 + Sugar
6CO2 + 6O2 + 6H2O --> Light+ Sugar
Which choice correctly shows the gas input and output of plants during photosynthesis?
Input: Oxygen
Output: Carbon dioxide
Input: Water vapor
Output: Glucose
Input: Carbon dioxide
Output: Oxygen
Input: Light
Output: Water vapor
The diagram below shows the flow of carbon in a terrestrial ecosystem. Which will most likely happen if the decomposers are removed from the carbon cycle?
The amount of carbon dioxide in the atmosphere will increase.
The amount of carbon dioxide in the atmosphere will decrease.
The amount of carbon dioxide used by producers will increase.
The amount of carbon dioxide needed by consumers will decrease.
