Chloroplast Structure

Photosynthesis Review

By Catherine Willers

The chloroplast is the site of photosynthesis.

Stage 1 happens in the thylakoids (green discs)

Stage 2 happens in the stroma​ (space in between)

Look over the diagram to test yourself on the next slide

Chloroplast Structure

Multiple Choice

Which structure represents the stroma (space inside the chloroplast)

• 1

• 2

• 3

Multiple Choice

Which structure represents the thylakoid.

• 1

• 2

• 3

Multiple Choice

Which structure represents the granum.

• 1

• 2

• 3

Review the diagram and be prepared to answer questions about stage 1 and 2 of photosynthesis on the next pages.

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Remember to review pages 44-49 in your text

Photosynthesis occurs in 2 Stages

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Multiple Choice

What is the ultimate source of energy for life on Earth?

• glucose
• sunlight
• ATP
• H2O

Multiple Choice

What is the green pigment that "traps" sunlight?

• Chlorophyll

• Chloroplasts

• Photosynthesis

• ATP

Multiple Choice

What are the major food-producing organs of plants and the sites of photosynthesis?

• chloroplasts

• roots

• stems

• leaves

Multiple Choice

The three things plants need are sunlight, water, and CO2 for photosynthesis.

• True
• False

Multiple Choice

Where does CO2 enter the leaves through?

• Roots
• Stem
• Chloroplasts
• Stomata

Multiple Choice

How does most of the water needed by the plant get into its leaves?

• It enters through the stomata

• The roots absorb it and then it travels up the stem

• It's made during a chemical reaction in the leaf

• The flowers capture water and deliver it to the leaves

Multiple Choice

What are the two products of photosynthesis?

• Oxygen and Carbon Dioxide
• Oxygen and Sugar
  

• Sunlight and Sugar

Multiple Choice

What form of energy is needed to start the process of photosynthesis?

• ATP

• Lactic acid

• Glycolysis

• Light

Multiple Choice

Which of the following is the correct equation for PHOTOSYNTHESIS?

• CO₂ + light + H₂O --> O₂ + Sugar
• CO₂ + sugar + H₂O --> O₂ + light
• _O2 + light + H₂O --> CO₂ + Sugar
• CO₂ + O₂ + H₂O --> Light+ Sugar

Multiple Choice

What gas is released by plants during photosynthesis?

• sulfur
• carbon dioxide
• oxygen
• hydrogen

Multiple Choice

What is the waste product from the stage 1 of photosynthesis?

• ATP (Energy)

• Oxygen

• Water

• Sugar (food)

Multiple Choice

What is the purpose of the stage 2 of photosynthesis?

• To make Glucose (C6H12O6)

• To make ATP energy for the dark reactions

• To make Carbon Dioxide

• To make ATP for the organism