IDNLearn.com provides a reliable platform for finding accurate and timely answers. Our platform offers comprehensive and accurate responses to help you make informed decisions on any topic.

Oxygen gas (O2) is produced by plants and algae. What is the source
of oxygen atoms in these molecules?
A. Water
B. Glucose
C. Carbon dioxide
D. Atmospheric oxygen
E. Atmospheric nitrogen


Sagot :

The answer is C. Carbon Dioxide and also A) water

Plants and algae use carbon dioxide and water in presence of sunlight to perfrom photosynthesis. Oxygen is a by-product of this process and is used later by the plant for respiration.