All Bio Vocab

All Bio Vocab - Biology 101 Vocabulary 1 2 3 4 5 6 7 Cell...

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Biology 101 Vocabulary 1. Cell – the basic unit of living things. 2. Cytoplasm – the liquid (mostly water) that fills the inside of a cell. 3. Nucleus – an interior compartment where the cell’s own DNA is kept (animals have this). 4. Ribosomes – miniature factories where protein molecules are assembled. 5. Mitochondria – chemical plants that handle the cell’s energy needs. 6. Mitochondrial DNA – an animal’s own DNA. 7. Protein molecules – the cell’s working parts. Structural proteins: give the cell rigidity and enable it to move when necessary. Transporter proteins: usher chemicals in and out of the cell, and from one compartment to another. 8. Enzymes – manage all the cell’s chemical reactions, bringing together the necessary chemicals to make a desired product. 9. Chromosomes – long molecules that DNA is organized into. 10. Sex chromosomes – the 23 rd pair of chromosomes in a human; these determine the person’s sex. 11. X chromosomes – females possess 2 of these, men possess 1; this name comes from its shape under the microscope. 12. Y chromosome – men possess 1 Y chromosome; this name comes from its shape under the microscope. 13. Nucleosomes – keep the DNA tidy but also accessible when needed. 14. Centromere – a region in the center of a chromosome; DNA of a special sequence which is recognized by the machinery that pulls each duplicated chromosome apart when the cell divides. 15. Telomeres – a region at the end of a chromosome; protect the tips of the chromosomes from fusing
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This note was uploaded on 04/07/2008 for the course BIO 101 taught by Professor Bidle during the Spring '08 term at Rider.

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All Bio Vocab - Biology 101 Vocabulary 1 2 3 4 5 6 7 Cell...

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