CIE IGCSE Biology: 復(fù)習(xí)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(fù)習(xí)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(fù)習(xí)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(fù)習(xí)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(fù)習(xí)筆記：3.1.6 Osmosis in Animals & Plants Osmosis in Plant Tissues When water moves into a plant cell, the vacuole gets bigger,?pushing the cell membrane against the cell w...
CIE IGCSE Biology: 復(fù)習(xí)筆記：3.1.4 Osmosis Osmosis All cells are surrounded by a cell membrane which is?partially permeable Water?can move in and out of cells by osmosis Osmosis is the diffusion of...
CIE IGCSE Biology: 復(fù)習(xí)筆記：3.1.3 Water Water as a Solvent Water is important for all living organisms as?many substances are able to dissolve in it?(it is a?solvent) This makes it incredibly usef...
Biochemical Tests: Reducing Sugars & Starch There are a number of tests that can be carried out quickly and easily in a lab to determine if a sample contains a certain type of sugar The followi...
Polysaccharides: Structure Starch,?glycogen?and?cellulose?are?polysaccharides Polysaccharides are macromolecules (polymers) that are formed by?many?monosaccharides joined by?glycosidic?bonds in a?c...
作為留學(xué)圈的申請“大熱門”，今年的加州大學(xué)從10月1日開始就提前開通了申請渠道，11月30日截止，所以很多同學(xué)選擇在早申結(jié)束后“無縫銜接”轉(zhuǎn)戰(zhàn)UC。 但是今年的UC網(wǎng)申系統(tǒng)也有了新的變化，另外面對這9所分校，大家在...
2022年度泰晤士高等教育? 世界大學(xué)聲譽排名發(fā)布?? 本次排名由來自32個國家的211所大學(xué)所組成，排名依據(jù)來自世界各地的2.9萬名經(jīng)驗豐富、發(fā)表過論文的學(xué)者投出的42萬+張選票，清楚地描繪出了學(xué)者們認為在研究與教...
