Biology Flashcards: Identify Photosynthesis Reactants And Products

What this deck covers

This deck focuses on Identify Photosynthesis Reactants And Products, giving you a quick way to review the definitions, rules, and examples that matter most for Biology.

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Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: Which atoms from $CO_2$ appear in glucose: carbon, hydrogen, or both?

Answer: Carbon (and oxygen) atoms from $CO_2$. Carbon from $CO_2$ forms the backbone structure of glucose.

Flashcard 2: Identify the correct products if the reactants are $6CO_2$ and $6H_2O$ with light energy.

Answer: $C_6H_{12}O_6$ and $6O_2$. These are the standard products of the photosynthesis equation.

Flashcard 3: Which reactant is split during the light-dependent reactions to supply electrons?

Answer: Water ($H_2O$). Water photolysis provides electrons to replace those lost by chlorophyll.

Flashcard 4: What are the reactants of photosynthesis in the overall chemical equation?

Answer: Carbon dioxide ($CO_2$) and water ($H_2O$). These are the starting materials that get consumed in photosynthesis.

Flashcard 5: What are the products of photosynthesis in the overall chemical equation?

Answer: Glucose ($C_6H_{12}O_6$) and oxygen gas ($O_2$). These are the end materials produced by photosynthesis.

Flashcard 6: What is the balanced overall equation for photosynthesis (including light energy)?

Answer: $6CO_2 + 6H_2O + \text{light} \rightarrow C_6H_{12}O_6 + 6O_2$. This shows the complete balanced equation with energy input.

Flashcard 7: Which side of the photosynthesis equation contains the reactants: left or right?

Answer: Left side. Reactants always appear before the arrow in chemical equations.

Flashcard 8: Which side of the photosynthesis equation contains the products: left or right?

Answer: Right side. Products always appear after the arrow in chemical equations.

Flashcard 9: Identify the products if the reactants are carbon dioxide and water and the process is photosynthesis.

Answer: Glucose ($C_6H_{12}O_6$) and oxygen ($O_2$). These are the two products formed from the given reactants.

Flashcard 10: Which molecule is the product if bubbles are observed leaving an aquatic plant in bright light?

Answer: Oxygen gas ($O_2$). Oxygen bubbles form when aquatic plants release $O_2$ gas.

Flashcard 11: Which molecule is the reactant if a plant is supplying electrons to photosystem II by splitting a compound?

Answer: Water ($H_2O$). Water splitting in photosystem II provides electrons for photosynthesis.

Flashcard 12: Which molecule is the reactant if a plant is removing carbon from the atmosphere to build sugars?

Answer: Carbon dioxide ($CO_2$). $CO_2$ provides the carbon atoms for building sugar molecules.

Flashcard 13: Which molecule is the product if a plant is converting light energy into chemical energy stored in sugar?

Answer: Glucose ($C_6H_{12}O_6$). Glucose stores the converted light energy in its chemical bonds.

Flashcard 14: Identify the missing coefficient: $6CO_2 + 6H_2O + \text{light} \rightarrow C_6H_{12}O_6 + \ ? O_2$

Answer: $6$. The coefficient balances the equation for oxygen atoms.

Flashcard 15: Identify the missing coefficient: $\ ? CO_2 + 6H_2O + \text{light} \rightarrow C_6H_{12}O_6 + 6O_2$

Answer: $6$. The coefficient balances the equation for carbon atoms.

Flashcard 16: Identify the missing reactant: $6CO_2 + \ ? + \text{light} \rightarrow C_6H_{12}O_6 + 6O_2$

Answer: $6H_2O$. Six water molecules are required to produce one glucose molecule.

Flashcard 17: Identify the missing reactant: $\ ? + 6H_2O + \text{light} \rightarrow C_6H_{12}O_6 + 6O_2$

Answer: $6CO_2$. Six $CO_2$ molecules are needed to make one glucose molecule.

Flashcard 18: Identify the missing product: $6CO_2 + 6H_2O + \text{light} \rightarrow C_6H_{12}O_6 + \ ?$

Answer: $6O_2$. Oxygen is produced when water is split during light reactions.

Flashcard 19: Which substances are on the product side of $6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2$?

Answer: $C_6H_{12}O_6$ and $6O_2$. Products appear on the right side after the arrow.

Flashcard 20: Which substances are on the reactant side of $6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2$?

Answer: $6CO_2$ and $6H_2O$. Reactants appear on the left side before the arrow.

Flashcard 21: Identify the correct reactants if the products are $C_6H_{12}O_6$ and $6O_2$ in photosynthesis.

Answer: $6CO_2$, $6H_2O$, and light energy. These are the standard reactants of the photosynthesis equation.

Flashcard 22: Identify the correct products if the reactants are $6CO_2$ and $6H_2O$ with light energy.

Answer: $C_6H_{12}O_6$ and $6O_2$. These are the standard products of the photosynthesis equation.

Flashcard 23: Which reactant must be fixed (incorporated into organic molecules) during photosynthesis?

Answer: Carbon dioxide ($CO_2$). Carbon fixation incorporates atmospheric $CO_2$ into organic compounds.

Flashcard 24: Which product of photosynthesis comes specifically from splitting water?

Answer: Oxygen gas ($O_2$). Oxygen gas is released when water molecules are photolyzed.

Flashcard 25: Identify the substance that is reduced in photosynthesis: $CO_2$ or $O_2$.

Answer: $CO_2$ is reduced. Carbon dioxide gains electrons when it is converted to glucose.

Flashcard 26: Identify the substance that is oxidized in photosynthesis: $H_2O$ or $CO_2$.

Answer: $H_2O$ is oxidized. Water loses electrons when it is split in the light reactions.

Flashcard 27: Which atoms from $H_2O$ appear in glucose: hydrogen, carbon, or neither?

Answer: Hydrogen atoms from $H_2O$. Hydrogen atoms from water are incorporated into glucose molecules.

Flashcard 28: Which atoms from $CO_2$ appear in glucose: carbon, hydrogen, or both?

Answer: Carbon (and oxygen) atoms from $CO_2$. Carbon from $CO_2$ forms the backbone structure of glucose.

Flashcard 29: What are the organic products of photosynthesis listed in the overall equation?

Answer: Glucose ($C_6H_{12}O_6$). Glucose is the only organic compound produced in the overall equation.

Flashcard 30: What are the inorganic reactants of photosynthesis?

Answer: $CO_2$ and $H_2O$. Both are simple inorganic molecules that serve as starting materials.