Tissues, Organs, Organ Systems

A tissue is a group of cells that have a similar

structure and function.                                        

  For Example:

• Muscle tissue contracts so we can move

• Glandular tissue produce substances such as enzymes and hormones

• Epithelial tissue covers organs

ORGANS ARE MADE OF TISSUE.

For Example, the stomach is an organ that contains:

• Muscle tissue 

• Glandular tissue

• Epithelial tissue

ORGANS SYSTEMS ARE GROUPS OF ORGANS.

They carry out a particular function

For example the digestive system includes:

• Glands, such as pancreas and salivary glands, that produce digestive juices
• The stomach and small intestine where digesyion takes place
• The liver, which produces bile to help break down fats
• The small intestine, where the soluble food is absorbed into the blood.
• The large intensine, where water is aborsbed from undigested foods, producing faeces.

Plant Organs include:

• Stems
• Roots
• Leaves

Plants Tissues include:

• Epidermal tissues, that cover the plant 
• Mesophyll, where photosynthesis takes place
• Xylem and Pholem that transport substances around the plant