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BC Science 9 Ch4
BC Science 9 Chapter 4
| Question | Answer |
|---|---|
| Separates internal cell environment with outside environment | Cell membrane |
| A tough rigid structure that surrounds a plant cell membrane | Cell Wall |
| A jelly-like substance that contains organelles and fluid | Cytoplasm |
| A specialized part of a cell that has a specific function for the cell | Organelle |
| Energy organelle | Mitochondria |
| Traps the energy from the sun to make sugar | Chloroplast |
| Site of protein synthesis | Ribosomes |
| Biological molecule that function as enzymes, hormones or as structural molecules | Proteins |
| Membrane covered organelle that is part of the protein making process | Rough endoplasmic reticulum |
| Membrane covered organelle that is part of the fat (lipid) making process | Smooth endoplasmic reticulum |
| Membrane bound structure used for transporting new proteins | Vesicle |
| Membrane bound structure used storage of materials | Vacuole |
| Sorts and packages proteins | Golgi body |
| Controls the activities of the cell | Nucleus |
| Surrounds the nucleus | Nuclear membrane |
| Membrane free organelle that helps make ribosomes | Nucleolus |
| Opening in the nuclear membrane that allows material into and out of the nucleus | Nuclear pore |
| Looks like a twisted ladder | DNA |
| Thymine | Adenine always pairs with ?? in DNA |
| Guanine | Cytosine always pairs with ?? in DNA |
| DNA and protein; found in the nucleus | Chromatin |
| Compacted genetic material; 46 in human cells | Chromosome |
| Contains information to make proteins | Gene |
| Speeds up reactions in cells | Enzymes |
| Chemical messenger in the body | Hormone |
| A change in the order of the genetic bases | Gene mutations |
| Mutation that benefits an individual | Positive |
| Mutation that potentially harms an individual | Negative |
| Mutation that does not harm the individual | Neutral |
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darrinaustin
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