Biology 9700 · AS & A Level · Movement into and out of cells

Movement into and out of cells — practice question

What happens when carbohydrate is moved from a sink into a phloem sieve tube element?

  • Awater potential in phloem sieve tube element becomes higher; volume of liquid in phloem sieve tube element decreases
  • Bwater potential in phloem sieve tube element becomes higher; volume of liquid in phloem sieve tube element increases
  • Cwater potential in phloem sieve tube element becomes lower; volume of liquid in phloem sieve tube element decreases
  • Dwater potential in phloem sieve tube element becomes lower; volume of liquid in phloem sieve tube element increases

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