Biology
Stems cells are unspecialized cells that are capable of continually renewing and dividing through cell division for long periods. They are also capable of differentiating into specialized cell types under appropriate conditions. Therefore the two normal functions are to reproduce and give rise to more cells indefinitely (in the case of 3 to 5 day old blastocyst), and to regenerate multiple types of cells to replace those that have died or were damaged (where there is a local infection/injury).
- Mitosis Vs ...
Mitosis can be compared to a couple of different cell actions. But what makes it different?Mitosis is the process of which a cell divides and creates copies of itself, the main purpose of this being to help the organism grow or to replace cells that are...
- Homework -blood Cells
Look at the links and the video clip on this blog about blood cells. In addition read pages 93-97 in your book. Then make some notes about: Red blood cellsWhite blood cells- Including the different types i.e. phagocytes and lymphocytesPlatelets Give...
- #31 Control Of Cell Division, Stem Cell, Haploid And Diploid Cells
Each cell contains genes that help to control when it divides. Cells divide by mitosis only when required. When receives signals from neighbouring cells, it responds by dividing or not dividing. If this control goes wrong, cells may not divide when they...
- # 28.2 The Mitotic Cell Cycle - Syllabus 2016
5.1 Replication and division of nuclei and cells 5.2 Chromosome behaviour in mitosis When body cells reach a certain size they divide into two. Nuclear division occurs first, followed by division of the cytoplasm. The mitotic...
- Comparison Between Unicellular And Multicellular Organisms
Unicellular organism Multicellular organism 1. Body is made up of single cell Body is made up of numerous cells 2. Division of labour is at the organelle...
Biology
Stem cells
Stems cells are unspecialized cells that are capable of continually renewing and dividing through cell division for long periods. They are also capable of differentiating into specialized cell types under appropriate conditions. Therefore the two normal functions are to reproduce and give rise to more cells indefinitely (in the case of 3 to 5 day old blastocyst), and to regenerate multiple types of cells to replace those that have died or were damaged (where there is a local infection/injury).
- Mitosis Vs ...
Mitosis can be compared to a couple of different cell actions. But what makes it different?Mitosis is the process of which a cell divides and creates copies of itself, the main purpose of this being to help the organism grow or to replace cells that are...
- Homework -blood Cells
Look at the links and the video clip on this blog about blood cells. In addition read pages 93-97 in your book. Then make some notes about: Red blood cellsWhite blood cells- Including the different types i.e. phagocytes and lymphocytesPlatelets Give...
- #31 Control Of Cell Division, Stem Cell, Haploid And Diploid Cells
Each cell contains genes that help to control when it divides. Cells divide by mitosis only when required. When receives signals from neighbouring cells, it responds by dividing or not dividing. If this control goes wrong, cells may not divide when they...
- # 28.2 The Mitotic Cell Cycle - Syllabus 2016
5.1 Replication and division of nuclei and cells 5.2 Chromosome behaviour in mitosis When body cells reach a certain size they divide into two. Nuclear division occurs first, followed by division of the cytoplasm. The mitotic...
- Comparison Between Unicellular And Multicellular Organisms
Unicellular organism Multicellular organism 1. Body is made up of single cell Body is made up of numerous cells 2. Division of labour is at the organelle...