Plants obtain the raw materials for photosynthesis as follows:
- Carbon Dioxide (CO2): From the air through small openings called stomata on the leaves.
- Water (H2O): Absorbed by the roots from the soil.
- Sunlight: Captured by chlorophyll in the chloroplasts of leaf cells.
MCQs Based on the above question
Question 1: From where do plants obtain carbon dioxide (CO2) for photosynthesis?
A) From the soil through the roots
B) From the air through stomata on the leaves
C) From water absorbed by the roots
D) From sunlight captured by chlorophyll
Answer: B) From the air through stomata on the leaves
Question 2: Which part of the plant absorbs water required for photosynthesis?
A) Leaves through stomata
B) Chloroplasts in the leaves
C) Roots from the soil
D) Stems
Answer: C) Roots from the soil
Question 3: How do plants capture sunlight needed for photosynthesis?
A) Through the roots
B) Through the stomata
C) Through chlorophyll in the chloroplasts of leaf cells
D) Through the soil
Answer: C) Through chlorophyll in the chloroplasts of leaf cells
Question 4: What are stomata and what is their function in photosynthesis?
A) Small openings in the leaves that absorb water
B) Small openings in the leaves that capture sunlight
C) Small openings in the leaves that allow the exchange of gases, including the intake of carbon dioxide
D) Small structures in the roots that store water
Answer: C) Small openings in the leaves that allow the exchange of gases, including the intake of carbon dioxide