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Janssen Sem. 1 Final
Mrs. Janssen's Semester 1 Review
| Question | Answer |
|---|---|
| What is another name for “introduced” species? | Invasive species |
| Organism that eats only animals | Carnivore |
| Organism that eats only plants | Herbivore |
| Organism that eats both plants & animals | Omnivore |
| Organism that uses inorganic substances to make food | Chemoautotroph |
| Organism that converts light into energy | Photoautotroph |
| Organism that cannot make its own food | Heterotroph |
| Organism that makes its own food | Autotroph |
| When a cell reaches its size limit, it can stop growing or do what else? | Divide |
| What is a cell's entire process of growing & dividing called? | Cell cycle |
| In which stage of the cell cycle does the cell grow, metabolize, & replicate DNA? | Interphase |
| What is a stage of the cell cycle in which the cytoplasm divides and 2 new cells are formed? | Cytokinesis |
| What is a stage of the cell cycle in which the nucleus & nuclear material divide? | Telophase |
| What is the X-shaped structures that contain genetic material (DNA)? | Chromosome |
| What is the relaxed form of DNA called? | Chromatin |
| What is the uncontrolled growth & reproduction of cells called? | Cancer |
| What is the structure at center of a chromosome where sister chromatids are attached? | Centromere |
| What are structures that contain identical copies of DNA called? | Chromatids |
| What is an agent that causes cancer? | Carcinogen |
| What is programmed cell death? | Apoptosis |
| Unspecialized cells that can develop into specialized cells are called _________ cells. | Stem |
| What is the longest phase of the whole cell cycle? | Interphase |
| What happens to DNA during interphase? | Replicates |
| What is the longest phase of mitosis? | Prophase |
| What is the shortest phase of mitosis? | Metaphase |
| What structure forms across the center of a plant cell near the end of telophase? | Cell plate |
| How many daughter cells are produced from 1 cell going through mitosis? | 2 |
| During which phase of mitosis does the chromatin condense & the spindle forms ? | Prophase |
| During which phase of mitosis do the chromosomes line up along equator? | Metaphase |
| During which phase of mitosis do the chromosomes split and move toward poles? | Anaphase |
| During which phase of mitosis do the chromosomes reach poles and the cleavage furrow forms? | Telophase |
| During which phase of mitosis does the cytoplasm divide and 2 new separate cells are formed? | Cytokinesis |
| Where does DNA synthesis take place in eukaryotic cells? | Nucleus |
| DNA wraps around organizing proteins called __________. | Histones |
| Cancerous tumor that is dangerous | Malignant |
| Tumor that is not cancerous | Benign |
| When cancer spreads | Metastasize |
| Substance that causes cancer | Carcinogen |
| Mitosis out of control forms these | Tumors |
| Programmed cell death | Apoptosis |
| Mitosis produces offspring that are genetically ____________ to the parent. | Identical |
| What is the process by which unspecialized cells develop into specialized cells? | Differentiation |
| Which type of stem cells have cured NO diseases? | Embryonic |
| Binary fission is the division of a single celled organism into how many equal parts? | 2 |
| Smallest unit of living things | Cell |
| Cells make up these | Tissues |
| Tissues make up these. | Organs |
| Organs make up these. | Organ Systems |
| Organ systems make up these. | Organism |
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jjanssen33
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