2022 AMC10/12B卷即將開考,考前注意事項和答題策略了解一下!
AMC10/12 A卷考試已結束,距離B卷考試開始僅有1天的時間,相信不少考生已經進入考前沖刺階段了。我們為同學們整理了一些AMC考前的常見問題及注意事項,希望能夠幫助大家,考前沖刺之余也不要忘記做好各種準備工作...
AMC10/12 A卷考試已結束,距離B卷考試開始僅有1天的時間,相信不少考生已經進入考前沖刺階段了。我們為同學們整理了一些AMC考前的常見問題及注意事項,希望能夠幫助大家,考前沖刺之余也不要忘記做好各種準備工作...
Globular Proteins Globular Globular proteins?are?compact, roughly?spherical?(circular) in shape and?soluble?in water Globular proteins form a spherical shape when folding into their tertiary struct...
Levels of Protein Structure There are?four?levels of structure in proteins, three are related to a single polypeptide chain and the fourth level relates to a protein that has two or more polypeptid...
Amino Acids Proteins Proteins are?polypeptides?(and macromolecules) made up of monomers called?amino acids The sequence, type and number of the amino acids within a protein determines its shape and...
Biochemical Tests: Lipids The?emulsion test?can be carried out quickly and easily in a lab to determine if a sample contains lipids Lipids are?nonpolar?molecules that do not dissolve in water but w...
CIE IGCSE Biology: 復習筆記:4.1.1 Chemicals & Life Chemical Elements Most of the molecules in living organisms fall into three categories:?carbohydrates, proteins and lipids These?all contain ...
Lipids: Structure & Function Triglycerides Triglycerides are?fats and oils Fatty acid and glycerol molecules?are the components that make up triglycerides Fats and oils have a number of importa...
CIE IGCSE Biology: 復習筆記:3.1.8 Proteins & Active Transport Importance of Active Transport: Extended Energy is needed because particles are being moved?against a concentration gradient, in t...
CIE IGCSE Biology: 復習筆記:3.1.7 Active Transport Active Transport Active transport is the movement of particles through a cell membrane from a region of?lower concentration?to a region of?higher...
CIE IGCSE Biology: 復習筆記:3.1.5 Osmosis Experiments Osmosis in Plant Tissues When water moves into a plant cell, the vacuole gets bigger,?pushing the cell membrane against the cell wall Water en...
Lipids Lipids Lipids are macromolecules that contain carbon, hydrogen and oxygen atoms. Unlike carbohydrates, lipids contain a lower proportion of oxygen Lipids are?non-polar?and?hydrophobic?(insol...
CIE IGCSE Biology: 復習筆記:3.1.7 Active Transport Active Transport Active transport is the movement of particles through a cell membrane from a region of?lower concentration?to a region of?higher...
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