Question 32
Photosynthesis and Plant NutritionWhich of the following conditions is not necessary for photosynthesis to occur in plants?
- A.There must be light
- B.There must be xylem tissue used to conduct water
- C.There must be chlorophyll to trap radiant energy
- D.Carbondioxide must be present
- E.Water must be present
Show the answer and explanation
Answer: B (There must be xylem tissue used to conduct water)
Explanation
Algae such as Spirogyra photosynthesise without any xylem; light, chlorophyll, CO₂ and water are the real needs.