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Biology
Basically Everything
| Term | Definition |
|---|---|
| 3 basic types of cells | 1.Animal 2. Plant 3. Bacteria |
| Unicellular | one cell |
| Multicellular | more than one cell |
| Cell Specialization | ability to turn genes on and off |
| Cell Size | only seen under microscope |
| Parts of Plant Cell | Mitocondria, Cytoplasm, Rough and Smooth Endoplasmic Reticulem, Nucleous, Nuceolus, Nuclear Envolope, Cell Wall, Ribosomes, Golgi Apparatus, Peroxisome, Plasma Membrane, Chloroplast, and Vacuole. |
| Scientific Method: Step 1 | Make an Observation |
| Scientific Method: Step 2 | Research |
| Scientific Method: Step 3 | Hypothesis |
| Scientific Method: Step 4 | Experiment |
| Scientific Method: Step 5 | Conclusion |
| Control | Used for comparision, not being tested |
| Variable | Athing in the experiment |
| Independent Variable | Scientist changes it |
| Dependent Variable | changes based on independent variable |
| Basic Organisms Characteristics | 1.Made of cells 2. Requires Energy 3. Reproduce 4. Maintain Homeostasis 5.Organized 6.Respond to Enviroment 7. Grow and Develop 8. Exchange |
| Levels of Organization: Living | 1.Cell 2. Tissue 3. Organ 4. Organ System 5. Organisim |
| Levels of Organization: Non-Living | 1.Atom 2.Molecule 3.Organelle |
| Mass | all the stuff an object contains |
| Volume | LengthxWidthxHeight |
| Meter | 100 cm, 1000 mm |
| Metric Chart | Kilo, Hecto, Deca, Deci, Centi, Milli |
| Lynn Margulis | Organelles have DNA. some organelles were once free |
| Rudolph Virchow | All cells come from pre-existing cells. First to see cells dividing |
| Theodore Schwann | Animals have cell. Co-FOunder of the cell theory. |
| Matthias Schleiden | Plants have cells. Co-Founder of the cell theory |
| Anton Van Leeuwenhoek | first to observe a living organism |
| Robert Hooke | First to see cells. looked at cork. saw dead play cell walls |
| Cholorplast | Photosenthesis |
| Nucleous | Control center for cell. Contains DNA. |
| Ribosomes | Make protein |
| Endoplasmic reticulem | Smooth: Makes membrane Rough: Works on protein |
| Golgi Apparatus | Finishes, labels, ships, and sorts protein |
| Cell Wall | Supports and protects cell |
| Cytoplasm | Medium for chemical reactions to take place |
| Cell Membrane | Seperates Cell &outside. controls what enters and leaves cell |
| Vasuoles | move material around cell storage |
| Lysosomes | Digest, clean up and recycle |
| Mitocondria | Make ATP for cellular resperation |
| Prokaryotic | Simple.Reproduce Quickly. no nucleous. No Membrane bound organellles. Ribosomes in cytoplasm. DNA in nucleoid region. cell wall. |
| Flagella | Tail used for movement |
| Eukaryotic | Has nucleous. Has organelles. large and complex. Single or mulitcellular. |
| The Code of Life | Chromosones in a specific order the the bases occur. ATCGTATGCGG |
| Nitrogenous Bases | 2 Types- Purines and Pyrimidenes. |
| Purines | Adenine ans Guanine Double ring bases. 2 rings of carbon. |
| Pyrimidines | Thymine and Cytosine single bases. 1 ring of carbon and nitrogen atoms |
| DNA Double Heleix | Rungs of ladder-Nitrogenous Bases. Legs of ladder- Phosphate and deoxyriboes |
| Genes | genetic material the codes for a specific trait. located on chromosomes. |
| DNA | Deoxyribonucleic Acid. Made or repeating molecules. Called the blueprint of life. Instructions for making proteins. in nucleous. |
| Genetic Diversity | different arangments of nuclotides in acid (DNA). provides key to diversity. |
| Chromosomes | made of DNA |
| 1 DNA strand | backbone of molecule is alternation phosphates,Ribose, and Nitrogeneous Bases |
| Hydrogen Bonds | bases attract because of these. 1 is weak but there are about 1 million in a DNA strand |
| Amino Acids | 20 types. those form thousands of proteins |
| Proteins | large. made of chains of amino acids,. folding Amino Acid is critical for function |
| Triplet Code | 3 nucleotides form a triplet of codon, codes a specific amino acid |
| Fredrick Griffith | discovered deadly bacteria can change harmless bacteria into deadly ones. |
| Rosalind Franklin | x-ray photo of DNA |
| Watson and Crick | looked at Franklin's DNA x-ray. Purposed that DNA had a specific pairing between nitrogenous bases: Adenine--Thymine Cytosine--Guanine DNA made of two strands |
| Chargaff's Rule | Stated that Adenine and Thymine must pair. Cytosine and Guanine must pair. they must pair equally. |
| Enzymes | Digestion. Speed up chemical reactions. reused. made in Liver and Pancreus |
| Stucture | Lock and Key method. specific enzymes breakdown specific foods. |
| Factors that affect enzyme activity | 1.pH. 2.Temperature. 3.other substances (can be anything) optimal tem. 37C |
| 4 types: Digestive Enzymes | Amylase Lipase Pepsin Trypsin |
| Amylase | In Saliva. Breaks down starch |
| Lipase | in Pancreas. breaks down Lipids (fats) |
| Pepsin | In Stomach. Breaks down proteins |
| Trypsin | In small intestine. breaks down protein |
| Catalysts | lower activation energy of reaction |
| Catslase | breaks down hydrogen proxide |
| Lactase | breaks down milk |
| Protease | breaks down proteins |
| Lipase | breaks down lipids (fats) |
| How enzymes work? | substrates bind to active sites |