Algiers, K BIOLV01 Study Guide Summer 2010 Biology Study Guide For Final (50% accumulative) Chapter 1 Introduction to Life on Earth Definitions: Biology adaptation living fossils extinct species biodiversity Discovery vs. hypothesis based science; qualitative vs quantitative data Scientific method (steps, difference between the steps) Fig 1-1 (definitions) Theory vs hypothesis Theory of Evolution DNA and mutations and their role on evolution Three domains of life Prokaryote vs. Eukaryote How to write a scientific name correctly Chapter 2 Atoms, Molecules, and Life Definitions: atom, element, compound, molecule, isotopes, free radical, antioxidants Subatomic particles (electrons neutrons protons) o which is in the nucleus? o # of electrons for each energy level o which is + - neutral atomic # vs. atomic weight How to read the atomic # and mass on periodic table ionic covalent hydrogen bonds polarity (covalent bonds only) Properties of water (and examples) Solution solvent solute surface tension buffer pH acidic basic hydrophobic hydrophilic Chapter 3 Biological Molecules Define: organic inorganic monomer polymer dehydration synthesis vs. hydrolysis carbohydrates (1C:2H:1O) o monosaccharide (glucose fructose galactose) o disaccharides (glucose + glucose = maltose; glucose + fructose = sucrose; glucose + galactose = lactose) o polysaccharides (examples: starch chitin cellulose glycogen) o OH is polar = carbs are hydrophilic lipids: o oils fats waxes; oil is unsaturated; fats are saturated. Why? Fats and oils have 3 fatty acid chains and glycerol o phospholipid structure: 2 fatty acid chains 1 glycerol 1 phosphate group. Hydrophilic/hydrophobic o Steroid structures = 4 rings of carbon fused together 1 Algiers, K BIOLV01 Study Guide Summer 2010 proteins: o subunits are amino acids: 20 diff types o One amino acid structure (chemical make up) o Peptide bond o Protein vs. polypeptide vs. peptide o 4 levels of structure o Enzymes are proteins nucleic acid o Structure: 5C sugar attached to N containing base & phosphate grp o DNA vs. RNA (know structures & differences o ATP NADH NADPH FADH2 are nucleic acids Review your worksheet on ‘organic molecules’ Chapter 4 The Cell Cell theory Light microscope, Electron microscope (SEM and TEM) Common features of cells (small in size plasma membrane cytoplasm Cytosol DNA obtain energy/nutrients from environment) Prokaryotes vs. Eukaryotes differences? Fig of prokaryotic cell eukaryotic animal cell eukaryotic plant cell in book. Be able to label parts (see pg 60, 61, 76) Know functions of: cell membrane cell wall chloroplast cytoplasm DNA endoplasmic reticulum (ER; rough and smooth) Golgi complex lysosomes mitochondria Nucleus ribosomes vacuole vesicles. (Review your worksheet) What is the path a molecule travels through the cell as it is synthesized? (see fig on pg 71) Table 4-1 pg 62 is a good review table Know your worksheet on ‘the cell’ Watch the Bioflix on “The Animal Cell” and “The Plant Cell” Chapter 5 Cell Membrane Plasma membrane’s 3 functions; which part of the membrane does which? fluid mosaic model phospholipids-which side is hydrophilic? hydrophobic? How do they arrange in a bilayer? What determines how fluid? Hemotoxin - phospholipase Cholesterol’s functions in the plasma membrane Glycoproteins-what are they? 5 groups of proteins: o receptor, recognition, enzymatic, transport (channel & carrier), attachment diffusion vs osmosis passive diffusion o simple diffusion o facilitated diffusion 2 Algiers, K BIOLV01 Study Guide Summer 2010 o osmosis (hypotonic, hypertonic, isotonic) pg 90 Fig 5-10 active transport, endocytosis, exocytosis water always goes from hypotonic to hypertonic what type of transport is energy required for? What is the diffusion of water called? endocytosis & exocytosis (define; do they require energy?) Water balance and vacuoles Table 5-1 pg 86 Summing Up Diffusion (pg 86) Chapter 6 Energy Flow kinetic vs. potential energy (give examples of each) 2 laws of thermodynamics (quantity and quality of energy) Define: entropy, chemical reaction, metabolic pathway, metabolism reactant vs. product exergonic vs. endergonic reactions what’s ATP? ADP? Coupled reaction NADH, FADH2 function as ‘electron carriers’ Define: enzymes catalyst active site coenzyme Chapter 7 Photosynthesis Definition: photosynthesis, Autotrophs Which came first: photosynthesis or cellular respiration? Explain General formula for photosynthesis (Endergonic or Exergonic?) leaf adaptations for photosynthesis o capturing light, preventing water loss, gas exchange Stomata (singular stoma), guard cells, xylem, phloem chloroplast and its parts (pg 119): outer membrane, inner membrane, thylakoid, granum, stroma o Where in the chloroplast does the light/dark reaction take place? Photons, Pigments (chlorophyll a, b, carotenoids) light reaction (thylakoid) o Sunlight & Water go in o ATP, NADPH, and ½ O2 comes out o 2 photosystems containing pigments o 2 electron transport chains that carry electrons o Water splits and O2 is released dark reaction (stroma) o NAPDH, ATP, CO2, and H2O go in o Glucose comes out (synthesized) Fig that summarizes photosynthesis on pg 127 is good Role of NADPH and ATP in photosynthesis (where do they come from? Where do they go?) Watch the Bioflix on Photosynthesis 3 Algiers, K BIOLV01 Study Guide Summer 2010 Chapter 8 Cellular Respiration General formula for cellular respiration (Endergonic or Exergonic?) Where does each reaction take place? (see your worksheet) o Glycolysis o Formation of acetyl CoA o Krebs cycle o Electron transport chain o Fermentation Glycolysis splits sugar to make ATP & NADH Pyruvate from Glycolysis either enter the mitochondria (cellular respiration) or stays in cytosol (one of the two types of fermentation) Fermentation: Alcohol vs. lactic acid (know the difference) Why would a cell do fermentation instead of cellular respiration? Aerobic vs anaerobic Parts of mitochondria : outer, inner membrane, matrix, intermembrane compartment, cristae Role of NADH FADH2 and ATP in cellular respiration Oxygen we breathe in goes into what reaction? CO2 we breathe out comes from what two reactions? Comparing photosynthesis and cellular respiration: o Where is glucose used or broken down (reactant)? o Where is glucose made (product)? o Where is CO2 used (reactant)? o Where is CO2 made (product)? o Where is O2 used (reactant)? o Where is O2 made (product)? Watch the Bioflix on Cellular Respiration Chapter 9 DNA (Part I) Griffith’s Experiment: bacterial transformation What is DNA? Nucleic acid subunits (nucleotides) DNA vs. Genes vs. Chromosomes Thymine, cytosine, adenine, guanine Chargaff’s Rule Wilkins and Franklin: X-ray diffraction Structure of chromosomes o double helix o complementary bases held w/ H- bonds o sugar and bases held with covalent bonds o 5’ to 3’ Purines vs. pyrimidines Watson and Crick DNA replication o Strands unwind (DNA helicase) o Free bases are placed in front of templates (DNA polymerase o Pieces are tied together (DNA ligase) 4 Algiers, K BIOLV01 Study Guide Summer 2010 Types of mutations: nucleotide substitution, insertion, deletion, inversion, translocation Chapter 10 DNA (Part II) Genes have info to make proteins; enzymes are proteins DNA mRNA Protein o Where in the cell does each take place? o Which is referring to transcription? Translation? Fig on pg 170 is a great review What is transcription? What is translation? Where in the cell does each take place? 3 differences between DNA & RNA: sugar, T vs. U, double vs. single strand 3 types of RNA and functions: mRNA, rRNA, tRNA If I give you a DNA strand and the genetic code, be able to make proteins Transcription- RNA polymerase does everything Translation- Need mRNA, rRNA (the enzyme), tRNA (with an amino acid on each) to make proteins What is a codon? What molecule is this found on? How many types of nucleotides exist in DNA? In RNA? Name them. What is an anticodon? What molecule is this found on? What does it mean by ‘transcription is selective’? What is a Barr body? Think Calico cats Watch the Bioflix on Protein Synthesis Chapter 11 Cell Reproduction Define: Cell cycle, binary fission, mitosis, meiosis, gamete Cells divide for: growth, development, asexual reproduction, gamete formation homologous chromosomes vs. sister chromatids How many chromosomes do humans cells have? How many pairs? How many homologous pairs of chromosomes do humans have? define: chromosome, chromotin, centromere parts of the cell cycle o G1 G2 S M o Which parts make up interphase? mitosis: IPMAT (interphase is not part of division) o sister chromatids separate o start diploid (2n), end diploid (2n) o all eukaryotic cells except for cells which make gametes meiosis: two sets of division M1, M2 o MI: homologous chromosomes separate o MII: chromatids separate o How many cells form? Are they diploid or haploid? n or 2n? o Cross-overs, independent assortment, formation of tetrads 5 Algiers, K BIOLV01 Study Guide Summer 2010 Why does the gamete cell have to become haploid for the offspring to be diploid? pre-requisite to sexual reproduction A fertilized egg is called a zygote o Is a zygote diploid or haploid? o Will a zygote go through mitosis? Meiosis? 3 sources of genetic variability What is a cancerous cell? Questions at the end of outline Watch Bioflix on Mitosis, Meiosis Chapter 12 Patterns of Inheritance Who was Mendel? Who was Morgan? Define: gene, locus, allele, character, phenotype, genotype, homozygous, heterozygous, gamete, dominant, recessive Be able to make a punnett square using monohybrid, dihybrid, and sex-linked traits. Law of segregation; law of independent assortment Types of genetics problems you should be able to do o Simple dominance o Monohybrid Cross o Dihybrid Cross o Linked genes o Incomplete dominance o Multiple alleles o Co-dominance o Polygenetic inheritance o Pleiotropy o Sex-linked Know the alleles for blood type, how to do a problem using blood types Know how to get ‘gametes’ for your punnett square Can a genetic disorder be dominant? Give an example Non-disjunction (XXY, XYY, XO, XXX, Trisomy 21) Review you genetics packet and questions at the end of chapter 12 Chapter 26 Population Growth & Regulation Define: ecology, population, community, ecosystem, biosphere Biotic vs. abiotic What three factors contribute to change in population size? o Birth, death, migration o What is a stable population? Biotic potential vs. environmental resistance Be able to identify or define the following growth curves o J-curve (exponential growth) o boom and bust cycle o s-curve 6 Algiers, K BIOLV01 Study Guide Summer 2010 Carrying capacity interspecific vs. intraspecific competition How do predators play a role in population size? Dispersal patterns: Clumped, uniform, random Human population curve o What type is it? o Why? (due to decrease in some environmental resistance) Developing vs. developed countries & their contributions to population size Have we reached the earth’s carrying capacity? Chapter 27 Community Interaction Define: diversity, species richness, relative abundance, Coevolution, niche What is resource partitioning? Symbiosis: Mutualism, parasitism/predator, commensalisms, competition Types of predator/prey adaptation o cryptic coloration, warning coloration, mimicry (and startle coloration), chemical warfare Keystone species Exotic species o How do they affect the ecosystem? o Why do some exotic species take over a community? o Cane Toad Exotic to Australia Chapter 28 How does the ecosystem work? Define: Autotrophs, heterotrophs, producers, primary and secondary consumers, herbivores, carnivores, omnivores, detrivores & decomposers trophic pyramid o energy transfer is only 10% Why? o Be able to tell me what trophic level an organism on a food chain is Food chain vs. food web Nutrition Cycles o carbon cycle, water cycle acid rain: what natural element’s cycle is over used? (S, N) global warming o greenhouse gasses o name some things that emit greenhouse gasses o evidence: warmer temperatures, melting of ice, extreme weathers, ocean water expanding, sea level rising, growing season increasing, wildlife is effected ozone layer o what is the ozone layer? What’s the problem with it? Main causes of biodiversity crisis o Habitat destruction, Introduced species, overexploitation What can we do to help? Why should we care? What is Biophilia ? This is 50% of the final. The other 50% is the 7 new material that we will cover until the end of the semester.