EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：1.5.4 Calculate Reacting Masses Calculate Reacting Masses Chemical equations can be used to calculate the?moles?or?masses?of reactants and p...
Limiting Antibiotic Resistance Hospital acquired infections Infections that are contracted by a patient while in hospital are known as?hospital acquired infections?(HAIs) The transmission of HAIs i...
Types of Antibiotics When humans experience a bacterial infection, they are often prescribed?antibiotics Antibiotics are chemical substances that?damage bacterial cells?with little or no harm to hu...
Evolutionary Race Between Pathogens & Host Vertebrates have evolved over millions of years to have immune systems that are capable of dealing with a wide range of different pathogens Pathogens,...
Types of Immunity Developing immunity The immune system is?activated?when a?new antigen is encountered This launches a?primary immune response?consisting of a?non-specific immune response?followed ...
Post-transcriptional Modification Antibody molecules consist primarily of?protein They contain four separate?polypeptide?chains, two of which are longer,?heavy chains, and two of which are shorter,...
B Cell Response B cells,?also known as B lymphocytes, are a second type of white blood cell in the specific immune response B cells remain in the?bone marrow as they mature, hence the?B?in their na...
T Cell Response T cells, sometimes known as T lymphocytes, are a?type of white blood cell?involved with the specific immune response They are produced in the bone marrow and finish maturing in the?...
The Role of Antigens & Antibodies Antigens Every cell in the human body has?markers?on its cell surface membrane?that?identify?it Microorganisms such as bacteria and viruses also have their own...
Non-specific Immune Responses There are two types of immune response in the body once a pathogen enters Non-specific This response is the same, regardless of the pathogen that invades the body Spec...
說起丘獎，想必大家都不陌生，除了是世界優秀院校敲門磚，還是沖刺藤校的必選學術活動！丘成桐科學獎素有 “中國青年諾貝爾獎”之稱，在獲獎學生中，有很大一部分都進入了清華、北大、復旦、交大等國內知名院校，還...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：1.4.4 Electronic Configuration & Reactivity Similar Chemical Properties Chemical properties of elements in the same group Elements in th...
