b. Explain how the following factors affect the rate of photosynthesis: i. light intensity
ii. carbon dioxide concentration iii. temperature
10. Copy and complete the following sentences using the words below:
chloroplast photosynthesise releases stores mitochondrion respire Only some organisms ____________, but all organisms ____________. Respiration takes place in a ____________. Respiration ____________ energy.
Photosynthesis takes place in a ____________. Photosynthesis temporarily ____________ energy.
Past paper questions 1. Sample Paper 2018, Question 14
Students were given permission to remove some green plants from a habitat to take back to their school laboratory. They did this in order to investigate factors that affect photosynthesis.
:Fig. 11.10
a. Imagine that you are one of the students. You have been asked to carry out an experiment to investigate how any one factor affects photosynthesis. i. Name one factor which could affect photosynthesis and which you might investigate.
ii. List two factors which you would keep constant (fixed) during the experiment to ensure that it is a fair test.
b. Write a suitable hypothesis for this experiment. c. Draw a labelled diagram of the set-up of your experiment.
j Go to page 58 of your Assessment Book to answer more exam-style questions 116 Elements of Science