B2 - Cells, Tissues and Organs

• Cells can form tissues
• Tissues can form organs
• Organs can form into organ systems

For example :

Heart muscle cells form heart muscle.

Heart muscle (tissue) that forms the organ - the heart.

Tissues are made from a group of the same type of specialised cells.

Examples include:

• Muscle
• The lining of the lungs and intestine
• Phloem
• Root hair tissue

Different tissues working together to do a specific job.

Examples include:

• The heart
• The lungs
• The brain
• Leaf
• Root

Different organs working together to do a particular job

Examples include:

• Circulatory system
• Digestive system
• Reproductive system
• Leaf canopy