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Published byGillian Nichols Modified over 9 years ago
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Characteristics of Life Growth and development Cellularity Reproduction Responsiveness Movement Require energy
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Scientific method Observation Research Hypothesis: prediction. You are predicting the outcome of an experiment you are about to perform Experimentation: control vs experimental group – Independent vs dependent variable Collect data Analyze data Formulate a conclusion
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Hypothesis vs theory Hypothesis: comes before the experiment – Prediction Theory: comes after SEVERAL experiments – Explanation Law: fact
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Prokaryote: simple single celled organsims Have NO NUCLEUS DNA floats freely in the cell 2 Kingdoms Archaebacteria: live in EXTREME environments Eubacteria: live in normal environments
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Eukaryote: single of multicelled Have a TRUE Nucleus 4 Kingdoms – Protista – Animal: organelle-cell-tissue-organ-system – Plant – Fungi
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Animal and plant cell organelles
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Biomolecules; Organic compounds; macromolecule; polymer Protein: amino acid Carbohydrate: simple sugar – Starch: plant energy storage – Glycogen: animal energy storage – Cellulose: builds cell walls Lipid: triglyceride: 3 fatty acid + glycerol – Fats and oils Saturated fat: Animal fat; solid at room temperature; have all single C-H bonds Unsaturated fat: plant; liquid at room temperature; have double carbon-hydrogen bonds – Wax – Steroid – Phospholipid: builds cell membrane Nucleic Acids: nucleotide – DNA and RNA
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Replication: DNA-DNA Transcription: DNA-RNA Translation: RNA-protein Base pair rules A-T, C-G Or A-U if you are making RNA Structure of DNA: double helix – 2 strands of nucleotides: sugar phosphate backbone Nitrogen bases in the middle Structure of RNA: single strand
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Structure of cell membrane or plasma membrane Phospholipid bilayer: 2 layers of phospholipids with proteins and cholesterol floating Passive transport: high to low concentration – NO ENERGY IS NEEDED – Simple diffusion – Facilitated diffusion – Osmosis Hypotonic, hypertonic, isotonic Active transport: low to high concentration – Need energy (ATP)
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