The chemical equation shown represents photosynthesis. a plus water plus light with a right-pointing arrow towards b plus oxygen. the arrow has an x above it. what is the role of substance a in photosynthesis? it traps light energy from the atmosphere. it combines with water to form glucose. it cools the atmosphere by changing into vapor. it changes into hydrogen in the presence of light.

It combines with water to form glucose.

6CO2 + 6H2O + light energy = C6H12O6 + 6O2.

The correct answer is it combines with water to form glucose.

Photosynthesis is the process by which green plants make food by the help  of sunlight and chlorophyll.

The food produced here is in the form of glucose.

The carbon dioxide, water and chlorophyll combines in the pressence of sunlight and forms glucose and oxygen which is the food for the plants.

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.

a = executive branch; b = judicial branch