Cell Organisation (AQA A-Level Biology): Flashcards
📚Flashcards
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10 cards from this deck
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Practise the cards
10 cards from this deck
How do cells become specialised?
How do cells become specialised?
Selective gene expression
What is a tissue?
What is a tissue?
Collection of similar cells working together to perform specific function
What is an organ?
What is an organ?
Combination of different tissues working together to perform functions
What is an organ system?
What is an organ system?
Organs working together as coordinated unit
Hierarchy of cellular organisation
Hierarchy of cellular organisation
Cells → tissues → organs → organ systems
Why muscle cells have many mitochondria
Why muscle cells have many mitochondria
To provide energy for contraction
Why are white blood cells rich in lysosomes?
Why are white blood cells rich in lysosomes?
For destroying pathogens
Xylem tissue functions
Xylem tissue functions
Transports water/minerals & provides mechanical support
Why blood capillaries aren't organs
Why blood capillaries aren't organs
Consist of just one tissue type
Why arteries and veins are organs
Why arteries and veins are organs
Contain multiple tissue types working together