BTEC Applied Science Unit 1 Biology Questions and Answers(Actual exam questions)

1. What is the name of the process by which cells become specialized for a particular function from stem cells - differentiation 2. Explain what tissues are - a collection of specialized cells 3. Explain what an organ is - a collection of tissues performing specific physiological functions 4. What is the difference between to ribosomes in a prokaryote and a eukaryotic cell - prokaryotes - 70s ribosome eukaryote - 80s ribosome 5. Describe the function of the nucleolus - Produces ribosomes and RNA 6. Describe the function of the cell wall - Provides rigidity and protection to the cell 7. Describe the function of the chloroplasts - Site of photosynthesis as they contain chlorophyll 8. Describe the function of the plasmodesmata - A channel through the cell wall the allows transport of materials from one cell to another 9. Describe the function of the amyloplasts - Stores starch and converts starch back into glucose when the plant needs energy 10. Describe the function of the vacuole - Stores water and chemicals for cell use. Also maintains