Photosynthesis QA Mobile-1 1783187360662

1. What are the three main ingredients plants need for photosynthesis?

• A. Soil, oxygen, and sugar
• B. Sunlight, water, and carbon dioxide
• C. Oxygen, minerals, and chlorophyll
• D. Water, soil, and sunlight

2. Where does photosynthesis physically happen inside a plant cell?

• A. In the roots
• B. In the stomata
• C. In the chloroplasts
• D. In the stems

3. What is the primary food substance that plants create during photosynthesis?

• A. Glucose
• B. Soil nutrients
• C. Oxygen
• D. Chlorophyll

4. What is the function of chlorophyll in a plant?

• A. To absorb water from the soil
• B. To release carbon dioxide
• C. To capture energy from the sun
• D. To store glucose in the roots

1. If a plant grew to be very large, where did most of its physical mass come from?

• A. The soil it is planted in
• B. Water absorbed by the roots
• C. Carbon dioxide from the air
• D. Sunlight energy

2. Why is sunlight considered an 'energy source' rather than a 'material' in photosynthesis?

• A. Because it is invisible to the human eye
• B. Because it powers the reaction instead of being used up as an ingredient
• C. Because it is only needed at night
• D. Because it is stored inside the chloroplasts as a physical liquid

3. Which statement about plants and respiration is true?

• A. Plants only produce oxygen and never use it
• B. Plants perform cellular respiration, especially at night
• C. Plants only breathe in the soil at night
• D. Plants do not need oxygen at all

4. What role do the stomata play in the success of photosynthesis?

• A. They act as tiny holes to let carbon dioxide enter the leaves
• B. They turn sunlight into physical sugar crystals
• C. They trap chlorophyll inside the plant stems
• D. They absorb water from the soil into the leaves