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AQA GCSE BIOLOGY ACTUAL PRACTICE 2024 EXAM WITH 150 QUESTIONS AND CORRECT ANSWERS/GRADED A+

AQA GCSE BIOLOGY ACTUAL PRACTICE  2024 EXAM WITH 150 QUESTIONS AND  CORRECT ANSWERS/GRADED A+

Specialised cells - ANSWER As an organism develops, cells
differentiate to form different types of cells.
As a cell differentiates:
- it may change shape
- different sub-cellular structures develop to let it to carry out a
specific function.
Include cells such as sperm, nerve and muscle cells.
Sperm cell - ANSWER Tail: to propel the sperm to fertilise the egg.
Mitochondria: sperm have many of these cell components, which are
the major site of respiration, to provide energy for their journey.
Nucleus: contains only one set of the genetic material.
Acrosome: contains enzymes to allow the sperm to penetrate the
outer layer of the egg.

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