Cells, tissues and organs quiz

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1. 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.
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2. Name three organs in the human digestive system

  • Liver, Stomach, Small/ Large intestine
  • Epidermal Tissue, Liver, Stomach
  • Muscular Tissue, Stomach, Small/ Large intestine

3. 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.

4. 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.

5. Where do most chemical reactions take place in a cell?

  • Cytoplasm
  • Mitochondria
  • Ribosomes
  • Nucleus

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