Cells

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  • Created by: cwolfe09
  • Created on: 02-05-16 11:38

1. Facilitated diffusion is the passive movement of molecules across membranes, down their concentration gradient, which is aided by carrier protein molecules.

  • True
  • None of the above
  • the movement of molecules against it's concentration gradient, using energy in the form of ATP, and transport proteins
  • the movement of water molecules from a region of higher water potential, to a region of lower water potential, across a partially permeable membrane
  • the movement of molecules down a concentration gradient, from an area of high concentration, to an area of low concentration.
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Other questions in this quiz

2. in Anaphase the centromeres divide, separating each pair of sister chromatids. The spindle contracts, pulling the chromatids to opposite ends of the cell

  • True
  • False

3. what are vesicles?

  • the organelle that is involved in protein synthesis
  • membrane-bound sacs found in cells, that are used to carry many different substances around cells.
  • types of blood cell
  • alternative name for nuclear pores

4. what is a hypotonic solution?

  • solution with a higher water potential than the cell
  • solution with a lower water potential than the cell
  • solution with the same water potential as the cell

5. define differentiation

  • the differences between two cells
  • the ability to complete any role in any cell of the body
  • the development and changes seen in cells as they mature to become specialised cells
  • the point on cell, where nuclear division takes place

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