Biology Topic Practice
Storage of Glucose as Starch
Plants often produce more glucose than they need immediately, so they store it for later use.
Why don't plants just store glucose as it is?
What is Storage of Glucose as Starch?
"Starch is a complex carbohydrate used by plants as an insoluble energy storage molecule."
Question 1
One use of glucose made in photosynthesis is:
Question 2
GCSE Biology: One use of glucose made in photosynthesis is:
Question 3
Why is glucose often converted to starch in plants?
Starch Storage
Glucose is soluble and would affect osmosis in cells.
Starch is insoluble and can be packed tightly into storage organs.
Starch can be converted back to glucose when the plant needs energy (e.g., at night).
Exam Tip
You can test for the presence of starch in a leaf using iodine solution.
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