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Combined Science: Biology

GCSE · Edexcel · higher

QuestionsFlashcards

Disease
Defence Against Disease
Development of Medicines
- Antibiotics
  4
- Discovery & Development of New Drugs
  6
Non-Communicable Diseases
- Lifestyle & Non-Communicable Disease
  8
- Cardiovascular Disease
  6

The Organism in the Environment
Human Influences on the Environment
- Human Impact on Biodiversity
  6
- Benefits of Maintaining Biodiversity
  6
Cycles within Ecosystems

The Importance of Cell Differentiation Flashcards

All 5 cards in this deck

What is cell differentiation?: The process by which a cell becomes specialised to carry out a particular function.
Why is differentiation important in the development of an organism?: It produces specialised cells, so the organism has tissues and organs suited to carrying out particular functions efficiently.
What is formed when a group of similar specialised cells work together?: A tissue.
True or false? Differentiation increases the number of cells in an organism.: False. Differentiation makes cells specialised; cell division increases the number of cells.
True or false? Most animal cells keep the ability to differentiate throughout life.: False. In most animals, cells lose the ability to differentiate at an early stage; in adults, cell division is mainly for repairing and replacing cells.