Question

carbon enters the biosphere from the atmosphere or hydrosphere when autotrophs—organisms, like plants and algae, that make their own food—perform photosynthesis to make the carbohydrate glucose (c6h12o6). the process of photosynthesis is represented by this chemical equation. 6co2 (g) + 6h2o (l) xrightarrow{light} c6h12o6 (aq) + 6o2 (g) carbon dioxide water glucose oxygen select the true statements. carbon dioxide gas from the atmosphere can be used in photosynthesis. water is a product of photosynthesis. photosynthesis produces glucose and oxygen. light energy is needed for autotrophs to perform photosynthesis.

Explanation:

1. The chemical equation of photosynthesis shows that carbon - dioxide from the atmosphere ($CO_2$) is a reactant, so it can be used in photosynthesis.
2. From the equation, water ($H_2O$) is a reactant, not a product.
3. The products of photosynthesis are glucose ($C_6H_{12}O_6$) and oxygen ($O_2$) as shown in the equation.
4. The arrow in the equation has "light" above it, indicating light energy is required for autotrophs to perform photosynthesis.

Answer:

• Carbon dioxide gas from the atmosphere can be used in photosynthesis.
• Photosynthesis produces glucose and oxygen.
• Light energy is needed for autotrophs to perform photosynthesis.