Photo. & Bio. Sht_1

Photo. & Bio. Sht_1

1. What word is used to describe the process plants use to make glucose?

2. Which of the samples recorded in the table below contains starch.

Photo3
Explain your choice.

3. The stages below are used to test a leaf for starch. Put the stages into the correct order.

Photo2

4. What precaution must be taken when using ethanol?

5. Brad and Jennifer, two pupils were carrying out a leaf test on a leaf with green and white
stripes. They found that not all of the leaf was making starch.

Which parts of the leaf were able to make starch? Explain your choice.

6.  Use the chemicals listed below to answer the following questions.

Photo1

 
a) Choose the two raw materials for photosynthesis.
b) Where does the energy for photosynthesis come from?
c) What useful gas is made by photosynthesis?
d) The green chemical plants use to collect light energy.

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