Q11 - 13: These questions are about cells and structures: 
               
            Cells are the basic building blocks of all living things. 
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     11. Which of the following lists gives structures in order of size, from smallest to largest? 
       
         - A. cells, organs, tissues, organism.
 
         - B. cells, organism, organs, tissues.
 
         - C. cells, organs,  organism, tissues.
 
         - D. cells, tissues, organs, organism.
 
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            12. The digestive system is an example of one body system. Where would 'systems' fit in the list above, from smallest to largest?  
              
                  - A. between cells and tissues
 
                  - B. between organs and organism
 
                  - C. between tissues and organs
 
                  - D. between tissues and organism
 
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     13. Which of these is an example of a 'tissue' made of similar cells?  
       
         - A. stomach
 
         - B. liver
 
         - C. muscle
 
         - D. circulatory system
 
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    14. Food colouring left in a beaker of water will slowly spread through the water as shown here. 
        
      What is the name given to this process?   | 
     
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              - A. digestion
 
              - B. diffusion
 
              - C. diffraction
 
              - D. evaporation
 
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    15. This process is important in cells, as it allows... 
      
        - A. ..colouring to enter cells
 
        - B. ..substances like oxygen to move through and between cells
 
        - C. ..cells to move around within tissues
 
        - D. ..water to flow through the gaps between cells
 
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    16-20. The dagram here shows 4 specialist cells, with structures that allow them to perform specific jobs:   | 
      
      Database Center for Life Science |  CC  3.0 
        Jessica Polka |  CC  4.0 
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    16. What is cell W? 
      
        - A. red blood cell
 
        - B. nerve cell
 
        - C. sperm cell
 
        - D. leaf cell
 
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    17. What is cell X? 
      
        
        - A. red blood cell
 
        - B. nerve cell
 
        - C. sperm cell
 
        - D. leaf cell
 
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     18. What is cell Y? 
       
         - A. red blood cell
 
         - B. nerve cell
 
         - C. sperm cell
 
         - D. leaf cell
 
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     19. What is cell Z? 
       
         - A. red blood cell
 
         - B. nerve cell
 
         - C. sperm cell
 
         - D. leaf cell
 
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     20. Which of these statements describes a specialist feature of a red blood cell?  
       
         - A. It has a long tail allowing it to 'swim' through a liquid
 
         - B. It has a long structure allowing it to pass messages over long distances
 
         - C. It has chloroplasts where photosynthesis occurs
 
         - D. It is small and flexible allowing it to pass through narrow spaces.
 
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