In the carbon-oxygen cycle, carbon dioxide is used for and oxygen is used for

In the carbon-oxygen cycle, carbon dioxide is used for photosynthesis in plants and oxygen is used for cellular respiration in animals.

Carbon is used for photosynthesis by plants and oxygen is used for the respiration by animals.

Explanation:

Plants use carbon dioxide for photosynthesis and releases oxygen gas as a product.

Oxygen which is released is used by the animals for their cellular respiration and releases carbon dioxide which is again used by the plants for photosynthesis.

Hence, carbon is used for photosynthesis by plants and oxygen is used for the respiration by animals.

1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.