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Video Worksheet: Bill Nye~Cells Directions: Using your knowledge of cells and information learned from the video, answer the following questions. The questions are in the same order as the video. Using the word bank at the bottom of the page, write your letter choice on each line. Questions: _______ 1. All plants and animals are made of __________________. _______ 2. Humans are more like animals such as rabbits than plants because _______________ _______ 3. Humans are made of ____________________________ (number) cells. _______ 4. Organisms like rabbits have many different kinds of cells to do different ________ _______ 5. Cells are ____________ bricks because they are piled up to make something, but they are ______________ because cells are __________ and bricks are not. _______ 6. ___________ is when more cells are made than die. Alive or Not? Write an A – for “Alive” or N – for “Not Alive” next to each item shown in the video. Part 1 Part 2 _____________ family ____________ potato _____________ volcano ____________ potato chips _____________ sponge cake ____________ gym socks _____________ sea sponge Consider the Following: How is a cell like a room in a house? ________1. A room’s wall is like a _________________ or _____________ because it surrounds the cell _______ 2. A table in a room is like a ______________________ _______ 3. A fireplace is like a ______________________ because it provides energy _______ 4. ___________________ is the process of one cell becoming two cells _______ 5. _________________ are the road map for cells and tell the cells what to do _______ 6. ___________ is our body’s fastest growing organ because we shed millions of these cells every day _______ 7. Genes are made of _______________ _______ 8. Humans have ______ pairs of chromosomes (46 total) _______ 9. Name one large single cell that is very easy to see. _______ 10.Red blood cells are red because the ____________ in the cell mixes with the _______________ we breathe in. _______ 11. _________________ attack viruses to keep us from getting sick. _______ 12. _________________ is how cells exchange chemicals with the environment and other cells. _______ 13. The only type of human cell that is never replaced is _______________________ _______ 14. One of the characteristics of being ___________ is being made of cells. A. we are made of animal cells B. skin C. osmosis D. alive E. iron, oxygen F. cells G. 23 Answer Bank H. mitochondria I. growth J. egg K. DNA L. cell wall, cell membrane M. jobs N. nerve cell O. genes P. like, different, alive Q. nucleus R. 100 trillion S. white blood cells T. mitosis