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Cells - Coggle Diagram
Cells
organs
There are 78 different organs
The organs for the humans
Liver
Lungs
Heart
Kidneys
Brain
The organs for the plants
Roots
Stems
Leaves
Tissues
It's a multicellular that is responsible for the human body's function.
We start life as a single cell, formed by the fusion of a sperm and an egg. This cell, called a zygote, divides to produce a two-cell embryo.
After 3 more cell divisions and 4 days, a human embryo is a ball of 16 cells called a morula. At this stage the cells start to follow different paths. Depending on where a cell is in the embryo and what its neighbours are, it will develop in a particular way.
The function of a cell is the task that it carries out. Cells carry out a function more efficiently if their structure is suited to the task. For example, the function of a motor nerve cell (neuron) is to carry a message from the brain to a muscle. It can do this because it has a long narrow cable-like nerve fiber, along which the message can travel.
Types of tissues
Muscle
Epithelial
Nervous
Connective
Blood tissues
Nutrients
Hormones
Waste materials
Two types of groups of cells
Multicellular
A living thing that is made up of a single cell.
Unicelluler
A living thing that consists multiples of cells.
Cells are smaller units of the human body.
The body parts acting as subsystems are structures within the cell.
For example: bacteria
Their body parts are groups of cells that make up tissues or organs.
For example: living things