Carbon Cycle and Plant Processes

The video explains the carbon cycle, highlighting its importance in organic molecules and the environment. It covers the stages of the cycle, including photosynthesis, the food chain, and the role of decomposers. The impact of human activities, such as burning fossil fuels and deforestation, on the carbon cycle is discussed. The video concludes with a summary and a practice quiz.

What is the role of carbon dioxide in the greenhouse effect?

• It absorbs harmful UV rays.

• It cools down the Earth's surface.

• It traps heat in the atmosphere.

• It reflects sunlight away from Earth.

Which of the following is NOT a category of organic molecules?

• Carbohydrates

• Minerals

• Proteins

• Lipids

What is the chemical formula for glucose?

• O2

• CO2

• C6H12O6

• H2O

What is the primary function of stomata in plants?

• To absorb sunlight

• To take in carbon dioxide

• To store water

• To release oxygen

Which process is responsible for the creation of glucose in plants?

• Respiration

• Photosynthesis

• Decomposition

• Fermentation

How does glucose move up the food chain?

• Through water absorption

• By being consumed by animals

• Through decomposition

• Via photosynthesis

What role do decomposers play in the carbon cycle?

• They produce glucose.

• They release oxygen.

• They absorb carbon dioxide.

• They break down dead organisms.

Which organisms are primarily responsible for breaking down dead matter in the carbon cycle?

• Predators

• Producers

• Consumers

• Decomposers

What is a major human activity contributing to excess carbon dioxide in the atmosphere?

• Burning fossil fuels

• Planting trees

• Using solar panels

• Recycling waste

What is a potential consequence of an imbalanced carbon cycle?

• Decreased sea levels

• Climate change

• Increased biodiversity

• Global cooling