In which process is oxygen absorbed by an organism?

a. photosynthesis
b. respiration
c. transpiration
d. evaporation

B. Respiration

Explanation: During aerobic respiration, oxygen is absorbed by an organism. Respiration occurs all the time in both plants and animals. Respiration is a process by which organic foods usually simple sugars such as glucose are completely broken down enzymatically in living cells in the presence of oxygen to release chemical energy, with the release of carbon dioxide and water as the by-products. The equation for the reaction is C6H12O6 + 6O2 --> 6CO2 + 6H2O + Energy

Respiration

Explanation:

Ap ex

a scenario where a cell may be needed to perform a form of endocytosis is when transporting large molecules. a scenario where a cell may be needed to perform a form of exocytosis is when releasing the large molecule from the cell.

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.