Photosynthesis Process Flashcards
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Questions and Answers

Put the following statements about photosynthesis in order by numbering 1-6:

  1. Chlorophyll absorbs light energy = 1
  2. Electrons increase an energy level = 2
  3. Electrons enter an electron transport chain = 3
  4. ATP and NADPH are formed = 4
  5. ATP and NADPH are used to drive reactions in the Calvin cycle = 5
  6. Glucose is formed = 6

What is significant to the chloroplast?

Where photosynthesis takes place.

Label the chloroplast below: __________, __________, __________, __________, __________, __________.

Outer membrane, Granum, Lumen, Thylakoid discs, Stroma, Inner membrane.

Which part of the chloroplast do light reactions take place?

<p>Thylakoid membranes.</p> Signup and view all the answers

Which part of the chloroplast do dark (light-independent) reactions take place?

<p>Stroma.</p> Signup and view all the answers

What is the most common pigment found within the chloroplast?

<p>Chlorophyll a.</p> Signup and view all the answers

____________ are specialized structures that absorb light.

<p>Chloroplasts.</p> Signup and view all the answers

What is an excited electron?

<p>An electron that has moved up an energy level.</p> Signup and view all the answers

What goes into the electron transport chain?

<p>10 NADH and 2 FADH2.</p> Signup and view all the answers

What comes out of the electron transport chain?

<p>34 ATP.</p> Signup and view all the answers

Describe what happens during photosynthesis:

<p>Sunlight energy is converted into chemical energy using chlorophyll. It converts water and carbon dioxide into glucose.</p> Signup and view all the answers

What molecule does the plant make during photosynthesis and cannot use, so it is released into the atmosphere?

<p>Oxygen.</p> Signup and view all the answers

Which atmospheric molecule do plants absorb and use to make glucose?

<p>Carbon dioxide.</p> Signup and view all the answers

What are ATP and NADPH used for during the dark reactions?

<p>Calvin cycle.</p> Signup and view all the answers

What is the purpose of the Calvin cycle?

<p>Converting carbon dioxide and water into glucose.</p> Signup and view all the answers

Order the items in 'the energy train' photosynthesis energy flow:

<ol> <li>Sun = 1</li> <li>Chloroplast = 2</li> <li>Chlorophyll = 3</li> <li>Electron = 4</li> <li>ATP/NADPH = 5</li> <li>PGAL = 6</li> <li>Glucose = 7</li> <li>Sucrose = 8</li> <li>Skittles = 9</li> </ol> Signup and view all the answers

Study Notes

Overview of Photosynthesis

  • Photosynthesis occurs in chloroplasts where sunlight energy is converted into chemical energy.
  • Chlorophyll is the primary pigment responsible for absorbing light energy.

Process of Photosynthesis

  • Light reactions occur in thylakoid membranes, where chlorophyll absorbs light energy.
  • Excited electrons from chlorophyll increase energy levels and enter an electron transport chain.
  • This process produces ATP and NADPH, which are essential for driving the Calvin cycle.
  • The Calvin cycle takes place in the stroma and converts carbon dioxide and water into glucose.

Key Components

  • Glucose formation is the ultimate goal of photosynthesis, while oxygen is produced as a byproduct.
  • Chlorophyll a is the most common pigment found in chloroplasts, vital for light absorption.
  • Specialized structures known as chloroplasts enhance the process of light absorption.

Electron Transport Chain

  • Inputs to the electron transport chain include 10 NADH and 2 FADH2.
  • The outputs from this chain include a significant production of 34 ATP.

Additional Notes

  • Sunlight, chloroplasts, and chlorophyll play key roles in energy flow during photosynthesis.
  • The Calvin cycle's function is to convert carbon dioxide and water into glucose utilizing ATP and NADPH.
  • Carbon dioxide is absorbed by plants to produce glucose, while oxygen is released back into the atmosphere.

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Test your understanding of the photosynthesis process with these flashcards. Arrange the steps involved and explore the significance of chloroplasts. Perfect for students studying biology and plant sciences.

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