Question

1. photosynthesis and cellular respiration are related because the products of one process are the ________________ of the other.
2. during the light - dependent reactions of photosynthesis, the gas ______________ is released as a byproduct, and it comes from ______________.
3. in cellular respiration, at the end of the electron transport chain, oxygen combines with electrons and hydrogen ions to form ________________.

word bank (with chemical formulas)

• glucose (c₆h₁₂o₆)
• oxygen (o₂)
• carbon - dioxide (co₂)
• water (h₂o)
• atp (adenosine triphosphate)
• sunlight (light energy)
• pyruvate (or pyruvic acid, c₃h₄o₃)
• mitochondria
• chloroplast
• capture light energy
• glycolysis
• krebs (citric acid) cycle
• electron transport chain
• reactants
• products
• hydrogen ions (h⁺)
• 36 - 38 atp molecules

Explanation:

• For question 8: Photosynthesis produces glucose (\(C_6H_{12}O_6\)) and oxygen (\(O_2\)), which are reactants for cellular respiration. Cellular respiration produces carbon - dioxide (\(CO_2\)) and water (\(H_2O\)), which are reactants for photosynthesis.
• For question 9: In the light - dependent reactions of photosynthesis, water (\(H_2O\)) is split. The oxygen (\(O_2\)) from water is released as a by - product.
• For question 10: In the electron transport chain of cellular respiration, the final electron acceptor is oxygen (\(O_2\)). Oxygen combines with electrons and hydrogen ions (\(H^+\)) to form water (\(H_2O\)). The reaction is \(O_2 + 4e^-+4H^+\to2H_2O\).

Answer:

1. reactants
2. oxygen (\(O_2\)); water (\(H_2O\))
3. water (\(H_2O\))