KS3 Biology Practice Test 2026 – Complete Exam Preparation

The green pigment found in plant leaves is called chlorophyll. This pigment plays a crucial role in the process of photosynthesis, allowing plants to capture sunlight and convert carbon dioxide and water into glucose and oxygen. Chlorophyll absorbs light most efficiently in the blue and red wavelengths but reflects green light, which is why leaves appear green to our eyes.

In addition to its role in photosynthesis, chlorophyll is also important for plant health, as it helps in energy production and supports growth. Without chlorophyll, plants wouldn't be able to harness solar energy effectively, leading to a failure in the energy production process necessary for their survival and growth. Its presence in leaves is a vital indicator of the plant's ability to perform photosynthesis effectively.