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Combined Science: Biology

GCSE · Edexcel · foundation

QuestionsFlashcards

Disease
Defence Against Disease
Development of Medicines
- Antibiotics
  4
- Discovery & Development of New Drugs
  3
Non-Communicable Diseases
- Lifestyle & Non-Communicable Disease
  7
- Cardiovascular Disease
  6

The Organism in the Environment
Human Influences on the Environment
- Human Impact on Biodiversity
  6
- Benefits of Maintaining Biodiversity
  4
Cycles within Ecosystems

Eukaryotic Organisms: Animals & Plants Flashcards

All 9 cards in this deck

What is the function of the nucleus in an animal or plant cell?: It controls the activities of the cell. It contains the chromosomes (DNA/genes).
What is the function of the cell membrane?: It controls which substances enter and leave the cell.
What is the function of mitochondria?: Aerobic respiration – they release energy. Say 'release energy', never 'make energy'.
What is the function of ribosomes?: Protein synthesis – this is where proteins are made.
Which three structures are found in plant cells but not in animal cells?: Cell wall, chloroplast and large (permanent) vacuole.
True or false? Plant cells do not contain mitochondria because they have chloroplasts instead.: False. Plant cells contain both: chloroplasts for photosynthesis and mitochondria for respiration.
What is the function of chloroplasts in a plant cell?: Photosynthesis – they contain chlorophyll, which absorbs light.
What is the function of the cell wall in a plant cell?: It supports and strengthens the cell. It is made of cellulose.
What is the function of the vacuole in a plant cell?: It contains cell sap and keeps the cell firm (turgid).