Jan 2009
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Define the scientific method (scientific method)and list the steps. | 1. State the problem or questions; 2. Form a testable hypothesis; 3. Design an experiment; 4. Collect & analyze data; 5. Draw conclusions & 6. Communicate results.
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| Define Hypothesis and give example. | hypothesis implies insufficient evidence to provide more than a tentative explanation <a hypothesis explaining the extinction of the dinosaurs>
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| Define theory and give example. | theory implies a greater range of evidence and greater likelihood of truth <the theory of evolution>
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| Define law and give example. | law implies a statement of order and relation in nature that has been found to be invariable under the same conditions <the law of gravitation>.
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| What are the characteristics of a living organism? | 1. Cells; 2. Reproduction; 3. Uses energy; 4. Chemicals of life; 5. Responds to the environment; & 6. Growth and development.
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| What are the 5 levels of organization? | Cells, tissues, organs, organ systems and organisms
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| Microscope - eyepiece | You look through it to view your speciman.
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| Microscope - coarse adjustment knob | Used to move the upper part of the microscope.
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| Microscope - Fine Adjustment Knob | Used to fine-tune your focus on your speciman.
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| Microscope - High Power Objective | Lense with high power
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| Microscope - Low Power Objective | Lense with low power
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| Microscope - Diaphragm | Controls the amount of light going through the aperture.
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| List 3 safety rules for the lab. | 1. conduct yourself responsibly; 2. follow instructions; & 3. follow dress code.
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| Explain how to calculate total magnification for a microscope. | Take the power of the objective and multiply by the power of the eye piece.
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| What is homeostasis? | A point of balance in the body.
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| What are the three parts of cell theory? | 1. All living things are made of cells. 2. Cells are the basic units of structure in all living things. 3. All cells are products of other cells.
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| Write the major contribution for each cell scientist. Hooke, Schwann, Schleiden and Virchow. | Hooke looked at cork under microscope, Schwann said all animals have cells, Schleiden said all plants have cells, Virchow said all new cells come from exsisting cells
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| Explain how photosynthesis helps all living things. | the process of photosynthesis changes carbon dioxide into oxygen.
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| What happens during photosynthesis (equation)? | It turns light energy into chemical energy.
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| What are active and passive transport? | Active transport is the movement of materials through a cell membrane using cellular energy. Passive transport is the movement of dissovled materials through a cell membrane without the use of cellular energy.
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| List and describe 3 msin steps in the cell cycle. | Interphase - Cell grows and makes copy of DNAMitosis - the nucleus dividesCytokinesis - the cell splits and the new daughter cells are made.
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| List the 4 phases of mitosis in order. | prophasemetaphaseanaphasetelophase
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| What are chromosomes and what is their function? | Chromosomes are rods of chromtin that store DNA
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| Define Osmosis | The diffusion of water molecules through a selectively permeable membrane.
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| Define Diffusion | The main method by which small molecules move across the cell membrane.
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| Define mutation. | A mutation is a permanent change in the DNA sequence of a gene.
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| Define probability. | Probability is the likelihood or chance that something is the case or will happen.
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| List and describe 3 main steps of the cell cycle. | 1. interphase - cell grows and makes a copy of DNA. 2. Mitosis - the nucleus divides. 3. Cytokinesis - the cell splits and the new daughter cells are made.
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| List the 4 phases of mitosis in order. | Prophase, Metaphase, Anaphase, and Telophase.
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| What are chromosomes and what is their function? | Chromosomes are rods of chromatin that serve as storage for DNA.
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| Define Osmosis. | Osmosis is the diffusion of water molecules through a selective p
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| Define Diffusion. | Main method by which small molecules move across the cell.
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| What happens during respiration (equation)? | Sugar + oxygen -------> carbon dioxide and water = energy
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| What is respiration? | Cellular respiration, the process in which molecules are converted into useable energy
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| What are the differences between a plant and animal cell? | A cell has a cell wall and an animal cell has chloroplsts.
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| Define Phenotype | An organism's physical appearance or visible traits.
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| Define Genotype. | An organism's genetic makeup or allele combinations.
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| Define Allele. | Part of a pair.
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| Define Dominant Allele. | An allele trait whose trait always shows up in an organism.
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| Define Recessive Allele. | An allele whose trait is masked in the presence of a dominant allele.
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| What is a Punnett Square? | A chart which predicts all possible gene combinations.
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| Who is the father of genetics and why? | Gregor Mendel - his experiments with peas.
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| Descibe the structure of DNA. Which pairs go together? | DNA is a double helix. It has two parts - 1. the back bone of a molecule and 2. bases, which are the side chains. Adenine, Guanine, Thymine, Cytosine.
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| What is the relationship between chromosomes, DNA and genes? | Chromosomes are made up of DNA and DNA is made of genes.
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| List 3 traits that are influenced by your genetic information. | Height, muscles, and weight
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| What is meiosis? | the process of reducitonal division in which the number of chromosomes per cell is cut in half.
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| How many chromosomes does each human cell begin and end with for: A) Mitosis? B) Meiosis? | Mitosis - 46 and Mieosis - 23
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Created by:
Jon13
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