C1L2: Specialised Cells Flashcards

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1
Q

3 features of a nerve cell?

A
  • dendrites (to connect nerve cells)
  • axon (conduct electrical impulse in 1D)
  • sheath (insulate impulse)
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2
Q

3 features of a sperm cell?

A
  • acrosome with enzymes to break egg
  • tail to swim to egg
  • mitochondria to provide energy for tail
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3
Q

3 features of muscle cells?

A
  • proteins to slide
  • mitochondria for contractions
  • glycogen to store glucose
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4
Q

2 features of phloem cells?

A
  • companion cells containing mitochondria

- sieve plates to allow sugars to flow by translocation

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5
Q

Function of phloem cells?

A

transporting glucose from leaves to rest of plant

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6
Q

Function of xylem cells?

A

transportation of water & mineral ions from root to leaves

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7
Q

A feature of xylem cells?

A

hollow tubes strengthened by lignin

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8
Q

3 features of a root hair cell?

A
  • extension at end (increases SA)
  • mitochondria to fuel active transport
  • no chloroplasts (no light underground)
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9
Q

What is translocation?

A

movement of dissolves sugars & water through phloem from leaves

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