CIE IGCSE Biology: 復習筆記：5.1.4 Enzymes & Temperature: Extended
CIE IGCSE Biology: 復習筆記：5.1.4 Enzymes & Temperature: Extended Enzymes & Temperature: Extended Enzymes are?proteins?and have a?specific shape, held in place by?bonds This is extremely i...
CIE IGCSE Biology: 復習筆記：5.1.3 Enzyme Action & Specificity: Extended
CIE IGCSE Biology: 復習筆記：5.1.3 Enzyme Action & Specificity: Extended Enzyme Action & Specificity: Extended Enzymes are?specific?to one particular substrate(s) as the?active site?of the ...
2022AMC10 A卷答案及分數線預測，真題答案和視頻解析等你來領！
2022年AMC10/12 A卷已落幕！同學們紛紛前來反饋，對題目難度的感嘆各有不同！中國考區的實際考試時間已經晚于MAA要求的考試時間（美東標準時間11月10日23：59），沒有靜默期限制。 大家關心的AMC10 A卷答案來了！...
CIE IGCSE Biology: 復習筆記：5.1.2 Enzyme Investigations
CIE IGCSE Biology: 復習筆記：5.1.2 Enzyme Investigations Investigating the Effect of Temperature on Amylase Starch solution?is heated to a set temperature Iodine?is added to wells of a spotting til...
OCR A Level Biology:復習筆記2.2.17 Chromatography
Chromatography Chromatography is a technique that can be used to?separate a mixture?into its individual components Chromatography relies on?differences in the solubility?of the different chemicals ...
CIE IGCSE Biology: 復習筆記：5.1.1 Enzymes
CIE IGCSE Biology: 復習筆記：5.1.1 Enzymes What Are Enzymes? Enzymes are: Catalysts?that?speed up?the rate of a chemical reaction?without being changed?or used up in the reaction Proteins Biologica...
OCR A Level Biology:復習筆記2.2.16 Finding the Concentration of a Substance
Finding the Concentration of a Substance Benedict’s solution?can be used to carry out a?semi-quantitative?test on a reducing sugar solution to determine the concentration of reducing sugar present ...
CIE IGCSE Biology: 復習筆記：4.1.3 DNA Structure: Extended
CIE IGCSE Biology: 復習筆記：4.1.3 DNA Structure: Extended Structure of a DNA Molecule: Extended DNA, or deoxyribonucleic acid, is the molecule that contains the instructions for growth and develop...
OCR A Level Biology:復習筆記2.2.15 Biochemical Tests: Proteins
Biochemical Tests: Proteins The Biuret test can be carried out quickly and easily in a lab to determine if a sample contains proteins Biuret ‘reagent’ contains an?alkali and copper (II) sulfate?whi...
CIE IGCSE Biology: 復習筆記：4.1.2 Food Tests
CIE IGCSE Biology: 復習筆記：4.1.2 Food Tests Food Tests Test for glucose (a reducing sugar) Add?Benedict's solution?into sample solution in test tube Heat?at 60 - 70 °c in water bath for?5 minutes...
OCR A Level Biology:復習筆記2.2.14 Inorganic Ions
Inorganic Ions An?ion?is an atom (or sometimes a group of atoms) that has an?electrical charge An ion that has a?+ve charge?is known as a?cation An ion that has a?-ve charge?is known as an?anion &n...
OCR A Level Biology:復習筆記2.2.13 Fibrous Proteins
Fibrous Proteins Fibrous proteins?are long strands of polypeptide chains that have cross-linkages due to hydrogen bonds These proteins have little or no tertiary structure Due to a large number of?...
