Cholera toxin is an A-B toxin secreted by V. cholerae that causes the host cell to expel large amounts of water and ions. The toxin is made up of five identical B subunits linked to one A subunit.
An electrocardiogram (EKG or ECG) is a test that checks for problems with the electrical activity of your heart. An EKG shows the heart 's electrical activity as line tracings on paper.The spikes and dips in the tracings are called waves.The heart is a muscular pump made up of four chambers.n EKG is done to: 1  Check the heart's electrical activity. 2  Find the cause of unexplained chest pain or pressure. 3  Find the cause of symptoms of heart disease. 4  Find out if the walls of the heart chambers are too thick. 5  Check how well medicines are working and see if they are causing side effects that affect the heart. 6  Check how well mechanical 7  ... Che
So, what is an ECG test? And what does an ECG measure?An ECG, the abbreviation of electrocardiogram, is a test that measures the electrical activity of oneâs heart. The ECG test records the heartâs rhythm on a strip of paper, or shows with a line on a screen. The peaks and dips of the heartâs contraction are then interpreted by a doctor.