IS2 Lesson 1 and 2

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy in the form of glucose, using carbon dioxide and water.

Front

What gas is removed from the atmosphere during photosynthesis?

Back

Carbon dioxide is removed from the atmosphere during photosynthesis.

Front

What is the primary source of energy for photosynthesis?

Back

The primary source of energy for photosynthesis is solar energy.

Front

What is the end product of photosynthesis?

Back

The end product of photosynthesis is glucose, which serves as food for the plant.

Front

What role do chlorophyll play in photosynthesis?

Back

Chlorophyll is the green pigment in plants that absorbs sunlight, which is essential for the process of photosynthesis.

Front

What are the two main stages of photosynthesis?

Back

The two main stages of photosynthesis are the light-dependent reactions and the light-independent reactions (Calvin cycle).

Front

How does photosynthesis affect atmospheric oxygen levels?

Back

Photosynthesis increases atmospheric oxygen levels as oxygen is released as a byproduct of the process.

Front

What is the significance of the nitrogen cycle in ecosystems?

Back

The nitrogen cycle is significant because it recycles nitrogen in various forms through the ecosystem, making it available for use by plants and animals.

Front

What is the relationship between photosynthesis and the nitrogen cycle?

Back

Photosynthesis and the nitrogen cycle are interconnected; plants use nitrogen from the soil to grow, and they produce oxygen through photosynthesis, which is essential for many organisms.

Front

What is the impact of volcanic activity on atmospheric CO2 levels?

Back

Volcanic activity can increase atmospheric CO2 levels due to the release of gases during eruptions.