11 Biology nutrition mcqs punjab board
11 Biology nutrition mcqs 1. Question Nitrogen is present in ___. 1. carbohydrates 2. proteins 3. lipids 4. None 2. Question Phosphorus is present in_____. 1. Cholorophyll 2. ATP 3. Stroma 4. None 3. Question Chlorophyll contains_____. 1. magnesium 2.…