Cell Specialisation (AQA GCSE Biology Combined Science): Flashcards
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Differentiation
Differentiation
Gaining new structures to perform specific functions
Stem cells
Stem cells
Cells that can differentiate continuously throughout life
Function of sperm cells
Function of sperm cells
Carry male's DNA to egg cell for reproduction
Acrosome in sperm cells
Acrosome in sperm cells
Contains digestive enzymes to penetrate egg cell membrane
Function of nerve cells
Function of nerve cells
Transmit electrical signals quickly across the body
Proteins in muscle cells for contraction
Proteins in muscle cells for contraction
Myosin and actin
Function of root hair cells
Function of root hair cells
Absorb water by osmosis & mineral ions by active transport
Large permanent vacuole in root hair cells
Large permanent vacuole in root hair cells
Speeds up water movement
Function of xylem cells
Function of xylem cells
Transport water and mineral ions from roots to shoots
Function of phloem cells
Function of phloem cells
Transport products of photosynthesis to all plant parts