CIE A Level Biology復習筆記11.1.1 Phagocytes
Phagocytes: Origin & Mode of Action Phagocytes are white blood cells that are produced continuously in the?bone marrow They are stored in the bone marrow before being?distributed around the bod...
CIE A Level Biology復習筆記10.2.3 Consequences of Antibiotic Resistance
Consequences of Antibiotic Resistance Consequences of antibiotic resistance Commonly prescribed antibiotics are becoming?less effective?for many reasons, the main being: Overuse of antibiotics?and ...
CIE A Level Biology復習筆記10.2.2 Antibiotic Resistance
Resistance to Antibiotics: An Outline Within a bacterial population, there is?variation?caused by?mutations?(as occurs in populations of all species) A chance mutation might cause some bacteria to ...
CIE A Level Biology復習筆記10.2.1 Penicillin
Penicillin: Why it Affects Bacteria & Not Viruses Antibiotics?are?drugs?that?kill or stop the growth of bacteria?(prokaryotes) but do not harm the cells of the infected organism Some antibiotic...
CIE A Level Biology復習筆記10.1.3 Prevention & Control of Disease
Factors for Prevention & Control of Common Diseases Prevention & control of cholera Cholera occurs when people do not have access to effective?sanitation?facilities?and?access to clean wate...
CIE A Level Biology復習筆記10.1.2 Transmission of Disease
Transmission of Common Diseases Transmission of cholera Cholera is caused by the?bacterium?Vibrio cholerae The disease is?water-borne?(the bacterium lives in water) and?food-borne This means the di...
CIE A Level Biology復習筆記10.1.1 Infectious Diseases
Infectious Diseases A disease is an?illness or disorder?of the?body or mind?that leads to?poor health Each disease is associated with a set of?signs and symptoms Infectious diseases are caused by?p...
CIE A Level Biology復習筆記9.1.6 Gas Exchange Processes
Gas Exchange Processes The exchange of oxygen and dioxide occurs between the alveoli and the capillaries in the lungs Oxygen and carbon dioxide are exchanged in a process of simple diffusion; (pass...
CIE A Level Biology復習筆記9.1.5 Structures & Functions of the Gas Exchange System
The Gas Exchange System: Structure & Functions Ciliated epithelial cells, goblet cells and mucous glands play vital roles in maintaining the health of the gas exchange system Cartilage, smooth ...
