A. A. A stress test can be used to test for heart disease. Stress tests are tests performed by a doctor and/or trained technician to determine the amount of stress that your heart can manage before developing either an abnormal rhythm or evidence of ischemia (not enough blood flow to the heart muscle).
The four types of organic compounds are carbohydrates, lipids, proteins and nucleic acids. Organic molecules contain the elements carbon and hydrogen, and they are found and made in living things. Keep Learning.
Functional Groups. On the basis of the presence of carbon atoms, chemical molecules can be classified into two types; organic and inorganic molecules. Organic molecules are mainly composed of carbon atoms with some other atoms such as hydrogen or oxygen atoms.or example, Phosphate group is an example of that functional group in which there is multiple bonds with hetero atom like phosphorus. In phosphate functional group one of the oxygen atoms bonded with phosphorus atom as well as one alkyl group.