Question

1. each of the letters in the formulas above represent atoms of an element, h = hydrogen, o = oxygen, and c = carbon.

a. state the types of elements in the reactants of photosynthesis.
b. state the types of elements in the products of photosynthesis.
c. the substances that are at the start of photosynthesis are not the same as the substances at the end. however, the element types are the same. what happened?

1. complete the labels of the diagram using the following terms:

radiant energy
carbon dioxide
oxygen
water
glucose

Explanation:

a. Photosynthesis reactants are CO₂ and H₂O, containing C, H, O.
b. Products are glucose (C₆H₁₂O₆) and O₂, containing C, H, O.
c. Elements rearrange into new substances (conservation of matter).
Diagram: Sun → radiant energy; root input → water; leaf input → carbon dioxide; leaf outputs → oxygen, glucose.

Answer:

a. Carbon, hydrogen, oxygen
b. Carbon, hydrogen, oxygen
c. The elements were rearranged to form new substances
Diagram labels (from top to bottom, left to right):

• Sun-connected box: radiant energy
• Root-connected box: water
• Left leaf input box: carbon dioxide
• Top leaf output box: oxygen
• Bottom leaf output box: glucose