The green pigment in plants is called:

**The reasoning** Plants appear green because they contain a special pigment called **chlorophyll**, found mainly in their leaves. This pigment is absolutely essential for **photosynthesis** — the process where plants convert sunlight, water, and carbon dioxide into food (glucose) and oxygen. Chlorophyll specifically absorbs red and blue light from the sun but reflects green light, which is why we see plants as green. Without chlorophyll, plants cannot make their own food and survive. **Why the wrong options tempt you** - **Haemoglobin** is the red pigment in your blood that carries oxygen — you might confuse it because it's also a well-known biological pigment. - **Melanin** gives color to human skin, hair, and eyes — it's a pigment, yes, but in animals, not plants. - **Carotene** actually exists in plants (it's the orange pigment in carrots), but it's not the primary green pigment; it's a helper pigment. **Quick takeaway** Remember: **Chlorophyll = Green = Photosynthesis factory in plants.** If the question asks about the green pigment in plants, it's always chlorophyll!