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Wake-up 1.Explain the difference between prokaryotic and eukaryotic cells. 2.Explain what would happen to a clown fish (Nemo from the ocean) if it was placed in freshwater. 3.What is #2 an example of, hypertonic or hypotonic? Explain.
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EOC Review #3: Photosynthesis, Cell Respiration, DNA, Mitosis, and Protein synthesis Christopherson
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Photosynthesis Photosynthesis I
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Photosynthesis Function To produce glucose (food) for producers The formula for glucose: C 6 H 12 O 6
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Photosynthesis: How? Plants absorb sunlight energy, carbon dioxide and water to make glucose
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Organisms that Undergo Photosynthesis: Plants
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Bacteria
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Protists – ex/ Green Algae
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Photosynthesis: Location Producer Leaf Leaf Cross-section Chloroplast Chlorophyll: Pigment
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Pigments Found inside the thylakoid Absorb sunlight energy and give plants their color.
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Photosynthesis Summative Equation (Formula) CO 2 H2OH2O + C 6 H 12 O 6 + O2O2 Sunlight Energy Reactants What is needed Products What is produced
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Cell Respiration I: ATP and Anaerobic Respiration Christopherson
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Purpose of Cell Respiration C 6 H 12 O 6 ATP The process in which glucose (food) is broken down into ATP (usable energy) C 6 H 12 O 6
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Nucleic Acid Function Usable form of energy (ATP)
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Cell Respiration Summative Equation (Formula) CO 2 H2OH2O + C 6 H 12 O 6 + O2O2 Reactants Need? Products Produced? ATP +
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Anaerobic Respiration Respiration that occurs without oxygen present
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Organisms that undergo Anaerobic Respiration: All living things
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Anaerobic (Complex Organisms) C 6 H 12 O 6 C-C-C-C-C-C C-C-C and C-C-C Pyruvate Glucose is broken down into pyruvate and ATP. The pyruvate is then moved to the mitochondria for AEROBIC RESPIRATION to make more ATP. (ATP) (To the mitochondria)
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Anaerobic (Simple Organisms) C 6 H 12 O 6 C-C-C-C-C-C C-C-C and C-C-C Pyruvate (ATP) FERMENATATION: Breaking down pyruvate into waste (trash) (Fermentation) Lactic Acid and Alcohol
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Breaking down of Pyruvate Simple Organisms Bacteria Yeast
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Type of Fermentation Lactic acid Fermentation
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Lactic Acid Fermentation: Explanation Pyruvate is broken down into lactic acid; a waste product
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Type of Fermentation Alcohol Fermentation
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Alcohol Fermentation: Explanation Pyruvate is broken down into ethanol (alcohol) and carbon dioxide
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Aerobic Respiration Respiration that occurs with oxygen present
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Organisms that undergo Aerobic Respiration: Complex Organisms (Everything BUT Bacteria and Yeast)
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Location Mitochondria: Breaks down sugar into ATP (usable form of energy); Powerhouse of the cell
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Aerobic Respiration: Process C-C-C and C-C-C Pyruvate 1. A consumer/producer takes in oxygen through respiration O2O2
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Aerobic Respiration: Process C-C and C-C-C Pyruvate CO2CO2 2. A carbon is broken off of pyruvate; combines with O 2 and leaves as CO 2 O2O2
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Aerobic Respiration: Process C-C and C-C-C Pyruvate CO2CO2 3. Pyruvate is stored energy (from sun); when break off a carbon; ATP is created O2O2 ATP
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Aerobic Respiration: Process C and C-C-C Pyruvate CO2CO2 4. The process continues a total of six times; MANY ATP’s are created O2O2 ATP O2O2 CO2CO2
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Aerobic Respiration: Process C-C-C Pyruvate CO2CO2 4. The process continues a total of six times; MANY ATP’s are created O2O2 ATP O2O2 CO2CO2 O2O2 CO2CO2
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Aerobic Respiration: Process C-C Pyruvate CO2CO2 4. The process continues a total of six times; MANY ATP’s are created O2O2 ATP O2O2 CO2CO2 O2O2 CO2CO2 O2O2 CO2CO2
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Aerobic Respiration: Process C Pyruvate CO2CO2 4. The process continues a total of six times; MANY ATP’s are created O2O2 ATP O2O2 CO2CO2 O2O2 CO2CO2 O2O2 CO2CO2 O2O2 CO2CO2
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Aerobic Respiration: Process CO2CO2 4. The process continues a total of six times; MANY ATP’s are created O2O2 ATP O2O2 CO2CO2 O2O2 CO2CO2 O2O2 CO2CO2 O2O2 CO2CO2 O2O2 CO2CO2
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Which process produces the MOST ATP? Anaerobic (Glycolysis) or Aerobic Respiration?
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DNA Structure and Discovery Christopherson
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DNA: Deoxyribonucleic Acid DNA is a Nucleic Acid Monomer: Nucleotide
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Structure of a Nucleotide 1. Phosphate 2. Deoxyribose 3. Nitrogen Base a. Adenine b. Thymine c. Cytosine d. Guanine
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Structure of DNA – aka Double Helix Deoxyribose Nitrogen Base Phosphate Handles; DNA Backbone Steps; Rungs Hydrogen Bond
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Matching Strands of DNA A T G C T T A C A T G C T A C T T A A C Remember that A=T and G=C T A C G A A T G T A C G A T G A A T T G
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What is a GENE? Cook book for everything in our body Portion of the DNA that “codes” (has the directions) for a specific trait.
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Where is a Gene? Within DNA The nitrogen bases spell out the instructions
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RNA Ribonucleic Acid Make up of Nucleotides Contains Phosphorus
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RNA Nucleotide A B C Phosphate Ribose Nitrogen Base Guanine Cytosine Adenine Uracil
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How is DNA different from RNA?
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DNA versus RNA: # of Strands 1 strand2 strands
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DNA versus RNA: Sugar DeoxyriboseRibose
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DNA versus RNA: Bonds with Adenine AdenineThymineAdenineUracil DNARNA
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What are the types of RNA?
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mRNA Function Copy a message from a gene on DNA DNA mRNA
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tRNA Function Carries amino acids to mRNA mRNA Amino Acids
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Brief summary of Protein synthesis A protein is made from a gene on DNA
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Brief Summary of Transcription Make mRNA from a gene on DNA
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Transcription Animation Transcription Animation #2
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Transcribe the following TAC GGC AAA TAG GAT TTT CCA TTA AGT DNA AUG CCG UUU AUC CUA AAA GGU AAU UCA mRNA
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Location of Translation Ribosome
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Brief Summary of Translation Make a protein from mRNA
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Translation Animation #1
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TAC GGA CAT GAC GGG AAA ACT AUG CCU GUA CUG CCC UUU UGA Met – Pro – Val – Leu – Pro – Phe - STOP DNA mRNA Amino Acid
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Mutations
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What is a mutation? Change in the DNA nitrogen base sequence of a gene
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How do Mutations Occur? Damaged DNA caused by agents such as sunlight, smoke, radiation; It can also be inherited
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Category of Mutation: Point Change in one base of the DNA sequence. Original: The fat cat ate the wee rat Point mutation: The fat hat ate the wee rat
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Example of Point Mutation: Sickle Cell Anemia
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Sickle Cell Anemia: Point Mutation
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Category of Mutation: Frameshift Addition or deletion of a DNA base resulting in a different sequence of DNA. Original: The fat cat ate the wee rat Frameshift mutation: The fat ata tet hew eer at
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Tay Sachs Disease: Frameshift Mutation
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Cell Cycle Summary
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What is a Body Cell? All the cells that make up the “body” of an organism.
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Total Number of Chromosomes in a Human Body Cell
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Purpose of the Cell Cycle To grow, replace old cells, or reproduction
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Location of the Cell Cycle Within an organisms body cells
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1 st Step of the Cell Cycle Interphase: Cell prepares to divide by making more organelles and cytoplasm (G1 and G2); Replicates DNA (S)
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2 nd Step of the Cell Cycle Mitosis: The replicated DNA is separated Made up of PMAT Prophase, Metaphase, Anaphase, Telophase
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3 rd Step of the Cell Cycle Cytokinesis: The cell divides the organelles and cytoplasm into the new cell
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End Result of the Cell Cycle Two identical cells with the same number of chromosomes Interphase Mitosis Cytokinesis
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If an organism has 50 chromosomes and it undergoes mitosis, how many chromosomes will be present in the new cells?
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If an organisms diploid number chromosome is 100, how many chromosomes will be present in the new cells?
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