Cells, tissues and organs quiz

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1. How is a leaf adapted to carry out photosynthesis.

  • Packed with chloroplasts. Closely packed cells to efficiently absorb sunlight.
  • Packed with chloroplasts. Have a tall structure to obtain more sunlight.
  • Greasy layers to stop water loss. Flat leaf to get more oxygen.
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2. What is meant by the term 'differentiation of cells'?

  • Meaning when cells are very similar they begin to change to form particular cells to function in a particular tissue.
  • Meaning all cells are different.
  • Meaning when cells are all different so that they can function properly.

3. When, and in which direction, will diffusion take place in solutions and in gases?

  • When particles are all together they diffuse into a cell together.
  • Diffusion will take place when particles are seperated by a membrane the particles will diffuse from an area of high concentration to an area of low concentration.
  • When particles are seperated by a memebrane and diffuse from an area of low concentration to an area of high concentration.

4. List the structures which are both found in animal and plant cells.

  • Chloroplasts, Cell Membrane, Mitochondria, Ribosomes, Cytoplasm
  • Cell Membrane, Mitochondria, Ribosomes, Nucleus, Cytoplasm.
  • Cell Wall, Cell Membrane, Mitochondria, Ribosomes, Nucleus,
  • Permanent Vacuole, Mitochondria, Ribosomes, Nucleus, Cytoplasm

5. What chemical produced by the liver aids digestion?

  • Bile
  • Bleach
  • Hydrochloric Acid
  • Enzymes

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