Question

Briefly compare physical and chemical properties of carbon dioxide and nitrogen​

Answer 1

Explanation:

Role of Carbon dioxide in Biological Processes

Photosynthesis, the process by which plants convert sunlight into glucose sugar, constitutes one of the most fundamental biological reactions that takes place on Earth and forms the basis of life at the bottom of the food chain, providing more complex organisms, such as mammals, with a supply of food. Photosynthesis requires a natural source of carbon in order to synthesize glucose; it obtains this from atmospheric carbon dioxide gas. The chemical word equation for photosynthesis is:

Carbon dioxide + Water (With Sunlight and Chlorophyll) = Glucose + Oxygen

Role of Nitrogen Gas in Biological Processes and the Nitrogen Cycle

Nitrogen is an essential building block of fundamental biological molecules, such as proteins and nucleic acids. Nitrogen gas from the atmosphere is captured by "nitrogen-fixing" bacteria. During this process, nitrogen and hydrogen gases are converted into ammonia that plants can absorb directly. Alternatively, ammonia decays in the soil into nitrates that plants also can absorb. Plants use ammonia and nitrates to synthesize biochemical molecules, such as chlorophyll, proteins and nucleic acids. Nitrogen can be released back into the atmosphere via a number of processes. Denitrifying bacteria that live in soil can convert nitrates into nitrogen gas. Alternatively, nitrogen-containing molecules within plants are consumed by animals, resulting in nitrogen-rich excrement. Nitrifying bacteria break down the ammonia in this waste, converting it to nitrates. Denitrrifying bacteria then break down those nitrates to nitrogen gas. These steps form the basis of the nitrogen cycle.