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...
Specialised Cells In complex multicellular organisms, eukaryotic cells become specialised for specific functions These specialised eukaryotic cells have specific adaptations to help them carry out ...
Significance of Meiosis Having genetically different offspring can be advantageous for natural selection Meiosis has several mechanisms that increase the genetic diversity of gametes produced Both ...
Stages of Meiosis Meiosis is a form of nuclear division that results in the production of haploid cells from diploid cells It produces gametes in plants and animals that are used in sexual reproduc...
Significance 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 nucleus The proc...
Identifying Mitosis in Plant Cells Growth in plants occurs in specific regions called meristems The root tip meristem can be used to study mitosis The root tip meristem can be found just behind the...
CIE IGCSE Biology: 复习笔记：6.1.10 Leaf Structure Leaf Structure & Adaptations for Photosynthesis Leaf structure Diagram showing the cross-section of a leaf How photosynthesising cells ...
