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Cambridge IGCSE Biology practice

What color will hydrogencarbonate indicator turn when an aquatic plant is placed in light?

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MCQ

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cambridge_mcq

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Topic

Photosynthesis

Exam-style question

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What color will hydrogencarbonate indicator turn when an aquatic plant is placed in light?.

  1. A.Yellow
  2. B.Red
  3. C.Purple
  4. D.Blue

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Method

Method

1. Fill a test tube with hydrogencarbonate indicator solution. 2. Place a piece of aquatic plant (e.g., Elodea) in the test tube. 3. Place the test tube in bright light for 10 minutes and observe the color change. 4. Repeat the experiment by placing the test tube in complete darkness for 10 minutes and observe the color change. 5. Record the color changes in both conditions.

VariableDescription
Independent variable
Dependent variable
Control variables
  1. a

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