Get your children excited about life and learning with the kids biology learning tools. A child has a naturally inquisitive nature that can be nurtured to create a sound foundation for future education.
Their mind is constantly absorbing information and with a little guidance and encouragement, you will find they will get great enjoyment out of biology and all it has to offer.
Kids biology is no different to adults biology, it is just presented in a manner that children will be more accepting of plus added enjoyment from making the learning fun.
Childrens biology kits are a fantastic introduction to your child discovering all forms of life and living organisms. A range of biology games, biology tools and educational biology equipment are available covering the many different area of biological studies and discovery.
ABOVE : A cell performs a number of functions in the body. Most of these functions require energy.
A living cell is constantly active. Substances pass into and out of the cell through the cell membrane and, in plant cells, a cell wall.
Chemical reactions occur in which large molecules are broken down to small ones and small molecules are built up to larger ones.
For example, most of the matter in the cytoplasm of a cell is made of protein. In cell division and growth, the extra protein needed is built up from smaller amino acid molecules that pass into the cell from the blood or the liquid around the cell.
The cells in your body may have to perform many of the following functions.
All cells make proteins (e.g. enzymes) and other large molecules.
Muscle cells cause movement.
Nerve cells send nerve impulses.
Many types of cells divide.
All of these functions require energy, and the cell's main source of energy is glucose. When glucose is broken down in respiration, oxygen is used and carbon dioxide, water and energy are produced.
This energy is used for muscle movement and nerve transmission, and in building large molecules such as proteins from smaller molecules.
Cell respiration occurs in organelles called mitochondri a (might-oh-KON-dree-a). These tiny organelles vary in shape from round to sausage-shaped, depending on the type of cell, and are found in all cells that contain a nucleus.
The number of mitochondria in a cell indicates its energy requirement. For example, a muscle cell contains up to 5000 mitochondria, while a skin cell may have fewer than 100.
Skeletal muscle is the type of muscle that usually moves bones. It is also called striated muscle because of its striped appearance under the microscope.
The other types of muscles in the body are heart muscle, which is found only in the heart, and smooth muscle, which is found in organs such as the stomach and intestine.
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