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Science Unit 2 7th g

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
show Like a factory, an organism must be able to obtain energy and raw materials and get rid of wastes.  
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show Diffusion  
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show Water  
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show Molecules  
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The diffusion of water through a semipermeable membrane is called?   show
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What is the result of osmosis?   show
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What process is important to cell functions?   show
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show The red blood cell would shrivel up.  
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show When a wilted plant is watered, osmosis makes the plant firm again.  
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Particles moving across a cell membrane without using energy   show
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show Channels  
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The movement of particles from an area of low to and area of high concentration across a cell membrane   show
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show Diffusion and osmosis  
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A cell needs this to transport particles by active transport   show
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show Proteins  
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show Endocytosis  
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What happens to a cell during endocytosis?   show
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show Exocytosis  
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show The vesicles fuses with the membrane and opens up and shoots the particle out.  
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What is your body telling you when you feel hungry?   show
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show The sun  
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show Food  
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Where does almost all of the energy that fuels life come from?   show
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Plants are able to change the sun's energy into food through the process of?   show
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show Pigments  
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show Chlorophyll  
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What is glucose?   show
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show The energy in glucose is used by the plant's cells  
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Photosynthesis produces what and what?   show
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Cells use what to break down food?   show
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Many cells are able to get energy without using oxygen through a process called?   show
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show It supplies the oxygen needed for cellular respiration and removes carbon dioxide.  
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What happens during cellular respiration?   show
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show Most of it maintains body temperature and some is used to form ATP.  
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ATP supplies what that fuels cell activities?   show
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show Mitochondria  
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During photosynthesis, plant cells take in carbon dioxide and release oxygen. How is this different form cellular respiration?   show
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show The buildup of lactic acid during fermentation contributes to this burning sensation.  
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What is another kind of fermentation?   show
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show Yeasts form carbon dioxide and the bubbles help the bread rise and leave little holes.  
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show Cellular respiration  
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show Fermentation  
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show Yeast  
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What is converted into food by the process of photosynthesis?   show
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What is released during photosynthesis.   show
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show Water, carbon dioxide, and energy  
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show Making news cells allows you to grow and replace dead cells.  
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show When the cell is formed  
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When does the cell cycle end?   show
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show It must make a copy of its DNA  
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show The copying of chromosomes  
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A cell without a nucleus is what kind of cell?   show
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show Euckaryotic  
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show Prokaryotic  
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show Eukaryotic  
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Are bacteria prokaryotic or eukaryotic cells?   show
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Bacteria create new cell through a kind of division called?   show
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When binary fission is complete, the results are two cells that each one copy of what?   show
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The chromosomes of eukaryotic cells have more what than that of prokaryotic cells?   show
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show 46, 8, 48  
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Chromosomes line up in pairs called what?   show
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What do pairs of homologous chromosomes have in common?   show
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In the beginning of the eukaryotic cell cycle, the cell grows and duplicates what and what?   show
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After a chromosome is duplicated, the two copies are called what?   show
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show Mitosis  
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Where are the chromatids held together?   show
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show The cell grows and copies its organelles and chromosomes.  
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show The chromatids separate during mitosis, which ensures that each new cell receives a copy of each chromosome.  
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And the third?   show
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show The chromosomes  
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How do animal cells separate into two cells without a cell wall?   show
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