Photosynthesis, Respiration, and Water Movement

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Questions and Answers

Which of the following accurately describes the relationship between photosynthesis and cellular respiration?

  • Photosynthesis releases energy, while cellular respiration stores energy.
  • Photosynthesis and cellular respiration both consume carbon dioxide.
  • Photosynthesis produces glucose and oxygen, which are then used in cellular respiration. (correct)
  • Photosynthesis occurs in mitochondria, while cellular respiration occurs in chloroplasts.

A plant cell is placed in a solution with a higher water potential than its own cytoplasm. What will most likely happen?

  • The cell will actively transport water out to maintain equilibrium.
  • The cell will lose water and plasmolyze.
  • The cell will neither gain nor lose water; it will remain flaccid.
  • The cell will gain water and become turgid. (correct)

If a plant is unable to properly perform cellular respiration, what is the most likely consequence?

  • Decreased ability to produce ATP. (correct)
  • Increased production of glucose.
  • Increased water uptake through the roots.
  • Accelerated rate of photosynthesis.

Which of the following best describes the role of the thylakoids in photosynthesis?

<p>They contain chlorophyll and carry out the light-dependent reactions. (C)</p> Signup and view all the answers

What is the role of the large central vacuole in plant cells regarding water movement and storage?

<p>It stores water and helps maintain turgor pressure. (A)</p> Signup and view all the answers

During photosynthesis, which substance initially provides the electrons that ultimately lead to the formation of glucose?

<p>Water (A)</p> Signup and view all the answers

What is the balanced chemical equation for photosynthesis?

<p>$6CO_2 + 6H_2O + Energy \rightarrow C_6H_{12}O_6 + 6O_2$ (D)</p> Signup and view all the answers

What is the balanced chemical equation for cellular respiration?

<p>$C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + Energy$ (D)</p> Signup and view all the answers

How does the structure of the mitochondria support its function in cellular respiration?

<p>The highly folded inner membrane increases the surface area for ATP production. (A)</p> Signup and view all the answers

What is the role of stomata?

<p>Facilitating gas exchange for photosynthesis and cellular respiration (C)</p> Signup and view all the answers

Flashcards

What is Photosynthesis?

The process where plants convert light energy into chemical energy in the form of sugars.

What is Cellular Respiration?

The process where cells break down glucose to produce energy (ATP).

What are Chloroplasts?

Organelles within plant cells where photosynthesis occurs; contain thylakoids.

What are Thylakoids?

Internal compartments within chloroplasts where the light-dependent reactions of photosynthesis take place.

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What is the Mitochondrion?

The organelle where cellular respiration occurs, producing ATP.

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What is the Large Vacuole?

A large organelle in plant cells that stores water and helps maintain cell turgor pressure.

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Photosynthesis Equation

6CO2 + 6H2O + Light Energy -> C6H12O6 + 6O2

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Cellular Respiration Equation

C6H12O6 + 6O2 -> 6CO2 + 6H2O + Energy (ATP)

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Study Notes

  • Concerns photosynthesis, cellular respiration, and water movement in plants.

Water in Plants

  • Encompasses movement, storage, and release.
  • It is important to identify plant/leaf/plant cell parts dealing with water movement.
  • Includes photosynthesis, cellular respiration including chloroplasts with thylakoids, mitochondria, and large vacuole.

Equations

  • Includes the balanced chemical equations for photosynthesis and cellular respiration.
  • Also includes describing the processes.

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