A plant with variegated (two-coloured) leaves was left in the sun for several hours. A piece of one of its leaves were then detached (removed) and tested for sugar. Explain, as fully as you can, why the yellow region of the leaf had not produced sugar. (5 marks)

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It does not contain chlorophyll which is needed to absorb light or energy.

The parts without chlorophyll do not photosynthesise, and so they do not make starch and the iodine does not change colour.

The green parts contain chlorophyll and photosynthesise to make starch.

The white part of the leaf does not contain chlorophyll, so does not photosynthesise.

Explanation:

i dont know this but ask your teacher for !

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.