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Worksheets*Photosynthesis Review
Total questions: 15
Worksheet time: 45mins
What is photosynthesis?
The process by which plants absorb water from the soil.
The process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water.
The method by which animals convert food into energy.
The way in which plants reproduce using seeds.
What gas do plants take in during photosynthesis?
Oxygen (O2)
Nitrogen (N2)
Carbon Dioxide (CO2)
Hydrogen (H2)
What are the main ingredients needed for photosynthesis?
Sunlight, carbon dioxide, and water
Oxygen, nitrogen, and glucose
Sunlight, oxygen, and glucose
Carbon monoxide, water, and minerals
What are products in a chemical equation?
Substances that are present before a chemical reaction occurs.
Substances that are formed as a result of a chemical reaction.
Substances that are used to speed up a chemical reaction.
Substances that are unchanged during a chemical reaction.
What are reactants in a chemical equation?
Substances that are formed as a result of a chemical reaction.
Starting substances in a chemical reaction that undergo change to form products.
Elements that do not participate in the reaction.
The energy required to initiate a chemical reaction.
What is chlorophyll and its role in photosynthesis?
A green pigment found in the chloroplasts of plants that captures light energy for photosynthesis.
A type of carbohydrate that provides energy to plants during photosynthesis.
A mineral that helps in the absorption of sunlight by plants.
A protein that aids in the growth of plants by enhancing nutrient uptake.
How do plants absorb water for photosynthesis?
Through their leaves from the air
Through their roots from the soil
Through their stems from the ground
Through their flowers from the rain
What is the significance of carbon dioxide in photosynthesis?
It is a waste product of photosynthesis.
It is a key reactant that is converted into glucose, providing energy for the plant.
It helps in the absorption of sunlight.
It is used to create oxygen during the process.
What is the role of sunlight in photosynthesis?
Sunlight provides the energy required for the photosynthesis process, allowing plants to convert carbon dioxide and water into glucose and oxygen.
Sunlight is used to cool the plant and prevent overheating during the day.
Sunlight helps in the absorption of nutrients from the soil.
Sunlight is primarily responsible for the growth of roots in plants.
What happens to the oxygen produced during photosynthesis?
The oxygen is absorbed by the plants for growth.
The oxygen is released into the atmosphere, where it can be used by living organisms for respiration.
The oxygen is converted into glucose for energy.
The oxygen is stored in the soil for later use.
What is glucose and why is it important for plants?
A simple sugar that serves as an energy source for plants, allowing them to grow and carry out various functions.
A type of protein that helps in the formation of plant cells.
A mineral that aids in the absorption of water in plants.
A complex carbohydrate that stores energy for later use.
Why is photosynthesis important for life on Earth?
It produces carbon dioxide, which is essential for plant growth.
It produces oxygen, which is essential for the survival of most living organisms.
It helps in the decomposition of organic matter.
It provides energy directly to animals.
What is the chemical equation for photosynthesis?
6CO2 + 6H2O + light energy → C6H12O6 + 6O2
6O2 + C6H12O6 → 6CO2 + 6H2O + light energy
C6H12O6 + 6O2 → 6CO2 + 6H2O
6H2O + 6CO2 → C6H12O6 + 6O2 + light energy
What environmental conditions affect photosynthesis?
Light intensity, temperature, and availability of water
Soil pH, wind speed, and humidity
Altitude, carbon dioxide levels, and soil nutrients
Seasonal changes, animal activity, and pollution levels
What gas do plants release during photosynthesis?
Carbon Dioxide (CO2)
Nitrogen (N2)
Oxygen (O2)
Hydrogen (H2)
