Study Notes
Photosynthesis is the process by which plants create carbohydrates from carbon dioxide and water using light energy, primarily occurring in chlorophyll within plant cells. This process is crucial for energy storage and maintaining atmospheric balance.
- Photosynthesis — the process by which plants make carbohydrates using light energy. Example: Plants use sunlight to convert carbon dioxide and water into glucose and oxygen.
- Chlorophyll — a green pigment in plants that absorbs light energy for photosynthesis. Example: Chlorophyll is found in the chloroplasts of plant cells.
- Glucose — a simple sugar that is a product of photosynthesis. Example: Glucose is used by plants for energy and growth.
- Starch — a storage form of glucose in plants. Example: Excess glucose is stored as starch in leaves.
- Limiting Factor — a condition that can restrict the rate of photosynthesis. Example: Low carbon dioxide levels can be a limiting factor for photosynthesis.
Exam Tips
Key Definitions to Remember
- Photosynthesis: Process of making carbohydrates from light energy
- Chlorophyll: Pigment that absorbs light for photosynthesis
- Limiting Factor: Condition that limits the rate of photosynthesis
Common Confusions
- Photosynthesis is not the same as respiration
- Chlorophyll is not the same as chloroplast
Typical Exam Questions
- What is the function of the waxy cuticle on the leaf? To prevent water loss
- The conducting, transport tissue inside stems is called _______ tissue. Vascular
- Phloem vascular tissue mainly transports ____ from the leaves. Sucrose and amino acids
- When a sunflower moves and follows the sun's movement in the sky, this kind of tropism is called? Phototropism
What Examiners Usually Test
- Understanding of the photosynthesis equation
- Factors affecting the rate of photosynthesis