Identify the compound that plants make to store as energy.

☛ Simply put, it is amylum, more commonly known as starch.

✎ Carbohydrates are widely used by plants. Plants photosynthesise in order to get vital components. The primary product of photosynthesis is a triose phosphate (PGAL) which is then converted to glucose through polycondensation.

Subsequently, glucose:

Amylum is easily identified by using an indicator -  Lugol's iodine. Starch grains are responsible for appearance of navy blue colouration.

A.

Explanation:

The compound that the plants make is carbohydrates which is then converted into starch to get stored in the plant body.

Starch is also a form of glucose which is easy to get stored. The process by which the autotrophs make food is photosynthesis.

The end product of this process is glucose which is used by the plants in their various types of metabolic processes.

The leftover glucose is converted into starch and stored in this form only.

the overall balanced equation

6co2 + 6h2o > c6h12o6 + 6o2

sunlight energy

where: co2 = carbon dioxide

h2o = water

light energy is required

c6h12o6 = glucose

o2 = oxygen