Embedded Files
Outcomes:
Outcomes:
Identify that new cells are produced by cell division
Distinguish between unicellular and multicellular organisms
Identify that different types of cells make up the tissues, organs and organ systems of multicellular organisms
Cell Division
Cell Division
In multicellular organisms, cells divide to produce new cells. Cell division is necessary for:
GROWTH of the organism
REPAIR of tissues and organs
REPRODUCTION by the formation of sex cells
In normal cell division the genetic information that is coded in the CHROMOSOMES inside the NUCLEUS must be copied before the cell divides. In this way each new cell (daughter cell) has an exact copy of the genetic information.
Mitosis: cell division
Mitosis: cell division
Unicellular vs Multi-cellular
Unicellular vs Multi-cellular
Multi-cellular organisms need specialised organ systems, whereas all the life processes in a unicellular organism take place in that one cell. Multi-cellular organisms need organ systems to carry out functions such as: Communication between cells, e.g. the nervous system and circulatory system.
Multi-cellular organisms need specialised organ systems, whereas all the life processes in a unicellular organism take place in that one cell. Multi-cellular organisms need organ systems to carry out functions such as: Communication between cells, e.g. the nervous system and circulatory system.
Levels of Organisation
Levels of Organisation
The five levels of organization in a multi-cellular organism are cells, tissues, organs, organ systems and organisms.
The five levels of organization in a multi-cellular organism are cells, tissues, organs, organ systems and organisms.
Specialised Cells
Specialised Cells
A cell that has become differentiated or "specialised" to carry out a particular function, e.g. red blood cell, a nerve cell, a muscle cell.
A cell that has become differentiated or "specialised" to carry out a particular function, e.g. red blood cell, a nerve cell, a muscle cell.
Activities:
Activities:
Google Sites
Report abuse