IB DP Biology: SL復(fù)習(xí)筆記1.4.3 Cancer
Tumour Formation Cancers demonstrate how important it is that?cell division?is?precisely controlled, as cancers arise due to?uncontrolled mitosis Cancerous cells divide repeatedly and uncontrollabl...
2022 DC全球鉆石商業(yè)挑戰(zhàn)賽9月即將開(kāi)始報(bào)名，快來(lái)找你的隊(duì)友吧！
Diamond Challenge全球鉆石商業(yè)挑戰(zhàn)賽，是由美國(guó)特拉華大學(xué)主辦的面向高中生的國(guó)際頂尖創(chuàng)業(yè)賽事。不同于其他學(xué)術(shù)活動(dòng)，鉆石挑戰(zhàn)賽專注于釋放學(xué)生的創(chuàng)造力，鼓勵(lì)多樣新穎的想法，培養(yǎng)學(xué)生的策劃能力、溝通能力、決...
IB DP Biology: SL復(fù)習(xí)筆記1.4.2 Phases of Mitosis
Phases of Mitosis Mitosis is the process of nuclear division by which?two genetically identical daughter nuclei?are produced that are also genetically identical to the parent cell nucleus (they hav...
IB DP Biology: SL復(fù)習(xí)筆記1.4.1 Cell Cycle
Interphase Mitosis?is part of a?precisely controlled process?known as the?cell cycle The cell cycle is the?regulated sequence of events?that occurs?between one cell division and the next The cell c...
IB DP Biology: SL復(fù)習(xí)筆記1.3.7 Skills: Estimation of Osmolarity
Practical 2: Estimation of Osmolarity NOS: Experimental design; accurate quantitative measurements in osmosis experiments are essential Planning is an essential part of experimental biology, it wil...
2022年北京公立學(xué)校國(guó)際部招生信息匯總！
已經(jīng)進(jìn)入8月，相信家長(zhǎng)和學(xué)生們也開(kāi)始考慮規(guī)劃明年的擇校。現(xiàn)在帶大家回顧一下2022年21所公辦校國(guó)際部的招生名額、學(xué)費(fèi)、加試分?jǐn)?shù)線相關(guān)信息，供大家參考。 招生信息匯總目錄 北師大附屬實(shí)驗(yàn)中學(xué)國(guó)際部 北京四中...
IB DP Biology: SL復(fù)習(xí)筆記1.3.6 Skills: Membrane Structure & Transport
Drawing the Fluid Mosaic Model Membranes Membranes are?vital?structures found in all cells The?cell surface membrane?creates an enclosed space separating the internal cell environment from the exte...
IB DP Biology: SL復(fù)習(xí)筆記1.3.5 Active Transport & Bulk Transport
Active Transport Active transport is the?movement of molecules and ions through a cell membrane from a region of lower concentration to a region of higher concentration using energy from respiratio...
IB DP Biology: SL復(fù)習(xí)筆記1.3.4 Membrane Transport
Passive Transport Simple diffusion Simple diffusion is a type of?transportation?that involves particles passing between phospholipids in?the plasma membrane It can be defined as: The net movement, ...
IB DP Biology: SL復(fù)習(xí)筆記1.3.3 History of Fluid Mosaic Model
History of Fluid Mosaic Model NOS: Using models as representations of the real world; there are alternative models of membrane structure Scientists use models to represent real world ideas, organis...
IB DP Biology: SL復(fù)習(xí)筆記1.3.2 Membrane Proteins
Membrane Proteins The phospholipid bilayer carries out the main function of the plasma membrane - to control the movement of substances into and out of the cell The other functions are carried out ...
IB DP Biology: SL復(fù)習(xí)筆記1.3.1 Phospholipid Bilayer Properties
Amphipathic Properties Phospholipids Phospholipids form the basic structure of the membrane (the phospholipid bilayer) They are formed by a?hydrophilic?phosphate head?bonding with two?hydrophobic?h...
