Increase in light intensity increases the rate of photosynthesis and less of it decreases its rate. 3. Canadian pondweed produces oxygen correspondingly to the rate of photosynthesis. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 1. The scientist said: ‘Light stops being a limiting factor at a light intensity of 20 units.’ Give evidence from Figure 3 to support this statement. [6 marks] 2.3) A scientist carried out a similar investigation.

How would you investigate the effect of light intensity on the rate of photosynthesis? Her results are shown in Table 3. Photosynthesis depends on the amount of light available.

You should include: • how you would use the apparatus • what you would measure • variables you would control. Place the pondweed at 5 cm from the light source. A student investigated the effect of light intensity on the rate of photosynthesis. Her results are shown in Figure 3. Start studying Practical Bio- investigation into the effect of light intensity on the rate of photosynthesis. Start studying To Investigate the Effect of Light Intensity on the Rate of Photosynthesis.

Start studying ATS GCSE Biology - RP6 Light intensity and rate of photosynthesis. Yes, another boring IAA exam which makes it vital to have no slip ups in the method, validity, reliability, evaluation or conclusion. box Figure 5 shows the apparatus used. The effect of light intensity on the rate of photosynthesis. Write a method to describe how you could investigate the effect of light intensity on the rate of photosynthesis by the pondweed. variables you would control.

This article will have all you need to know about the Biology IAA coursework on the investigation into the effect of light intensity on the rate of photosynthesis.

2. This is what is going to happen in my experiment. Give one factor.

Place a light source at different distances from the pondweed and attach the container to a gas syringe. Learn vocabulary, terms, and more with flashcards, games, and other study tools. [1 mark] 2.4) What could be limiting the rate of photosynthesis at a light intensity of 25 units? Measure the rate of photosynthesis by counting the number of bubbles produced in 1 minute. This is the method used. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Figure 5 Sodium hydrogencarbonate solution releases carbon dioxide gas for the pondweed. [6 marks] GCSE Biology/Combined Science Sample Questions 5 ; Ying carried out a similar investigation.