CIE IGCSE Biology: 复习笔记：6.1.7 Investigating Gas Exchange Investigating Gas Exchange Plants are?respiring all the time?and so plant cells are?taking in oxygen and releasing carbon dioxide?as a ...
CIE IGCSE Biology: 复习笔记：6.1.6 Investigating the Rate of Photosynthesis Investigating the Rate of Photosynthesis The plants usually used are?Elodea?or?Camboba?- types of pondweed As photosynthe...
CIE IGCSE Biology: 复习笔记：6.1.5 Investigating the Need for Chlorophyll, Light & Carbon Dioxide Investigating the Need for Chlorophyll Although plants make glucose in photosynthesis,?leaves c...
CIE IGCSE Biology: 复习笔记：6.1.4 Minerals in Plants Minerals in Plants Photosynthesis produces carbohydrates, but plants contain many other types of biological molecule; such as proteins, lipids ...
CIE IGCSE Biology: 复习笔记：6.1.3 Use & Storage of Carbohydrates Use & Storage of Carbohydrates How are the products of photosynthesis used? The carbohydrates produced by plants during pho...
CIE IGCSE Biology: 复习笔记：6.1.2 Chlorophyll Chlorophyll Chlorophyll is a?green pigment?that is found in?chloroplasts?within plant cells It is this pigment which gives plants their characteristic...
Stem Cells in Research & Medicine Use of embryonic stem cells Due to their ability to differentiate into multiple cell types, stem cells have huge potential in the therapeutic treatment of dise...
CIE IGCSE Biology: 复习笔记：6.1.11 Identifying Leaf Structures in a Dicotyledonous Plant Identifying Leaf Structures in a Dicotyledonous Plant You will be expected to identify the following struct...
Stem Cells in the Bone Marrow The stem cells found in bone marrow are?multipotent adult stem cells This means they can?only?differentiate into erythrocytes (red blood cells), monocytes, neutrophils...
Features of Stem Cells A?stem cell?is a cell that can?divide?(by mitosis) an?unlimited number of times Each new cell (produced when a stem cell divides) has the potential to?remain a stem cell?or t...
The Organisation of Cells As seen on the last page, in complex?multicellular?organisms?eukaryotic?cells become?specialised?for?specific functions. For example: Epithelial cells in the small intesti...
作为全球影响力最大，适配范围最广的数学学术活动，美国AMC学术活动被越来越多的家庭选择并参加。AMC作为全球信任度最高的数学学术活动，名校都高看一眼，如果能够拿到奖项，对申请的意义自然不言而喻。从小学到...
