This key facts covers How Systems Work Together within Tissues, Organs and Organ Systems for GCSE Biology. Organizational hierarchy from cells to organ systems, tissue types in plants and animals, structure-function relationships, and system interactions It is section 6 of 15 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
🔗 How Systems Work Together
No organ system works in isolation - they all depend on each other for the organism to survive.
Animal System Interactions:
- Digestive + Circulatory: Digested nutrients are absorbed into the blood and transported to all cells
- Respiratory + Circulatory: Oxygen from lungs is carried by blood to all tissues; CO₂ is carried back to lungs
- Nervous + Muscular: Brain controls muscle contractions for coordinated movement
- Excretory + Circulatory: Kidneys filter waste from blood to maintain chemical balance
Plant System Interactions:
- Root system + Shoot system: Roots absorb water/minerals for leaves; leaves make food for roots
- Transport + Photosynthetic systems: Water transported to leaves enables photosynthesis; sugars transported to all parts
- Gas exchange + Photosynthesis: Stomata allow CO₂ in for photosynthesis and O₂ out as waste
Practice questions for Tissues, Organs and Organ Systems
What is the correct order of biological organisation from simplest to most complex?
Describe the functions of glandular tissue and epithelial tissue in animals.
Quick recall flashcards
What is an organ?
A group of different tissues working together to perform a specific function.
What is a tissue?
A group of similar cells that work together to perform a specific function.