This text is for questions 9 to 11.
Doctors sometimes treat patients with a type of medicine called an antibiotic.
Antibiotics treat illnesses and infections caused by bacteria, or tiny organisms.
Antibiotics can come in the form of a pill, a liquid, a cream, or a shot. One of the first widely used antibiotics was penicillin. It was discovered in 1928.
Doctors use antibiotics to cure serious diseases, such as pneumonia, tuberculosis, and meningitis.
Baca Juga: Jawab Soal Materi Bahasa Inggris Kelas XI, Chapter III Assessment A No. 15-20
Antibiotics can also fight common problems, such as acne and strep throat.
Antibiotics do not work against common colds or other illnesses caused by a virus.
Antibiotics work by killing bacteria or by preventing them from multiplying.
Sometimes, however, not all the bacteria die. The bacteria that survive are said to have a resistance to the antibiotic.