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BIOLOGY BIG IDEAS

BIOLOGY BIG IDEAS. EOCT Prep. Q: If there is 100,000 cals at the 1 st trophic level, how much energy will be available to the secondary consumers? A: 1,000 cals Q: In a balanced ecosystem, which trophic level has the most energy and biomass? A: 1 st (Primary Producers).

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BIOLOGY BIG IDEAS

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  1. BIOLOGY BIG IDEAS EOCT Prep

  2. Q: If there is 100,000 cals at the 1st trophic level, how much energy will be available to the secondary consumers? • A: 1,000 cals • Q: In a balanced ecosystem, which trophic level has the most energy and biomass? • A: 1st (Primary Producers) Ecology – Energy Flow

  3. In ecosystems, energy ________ and nutrients like N, P, C, H2O ________. • A: flows…recycle Ecology – Energy Flow vs. Nutrient Cycling

  4. Q: Some chemicals like mercury (Hg) do not biodegrade. Instead, they build up in tissues of organisms. Which trophic level would you expect to find the MOST mercury? • Choices: A. 1st B. 2nd C. 3rd D. 4th • A D. 4th Ecology - Biomagnification

  5. Q: What are the three types of symbiosis? • A: mutualism, commensalism, parasitism Ecology - Symbiosis

  6. Q: Which type of growth is effected by limiting factors? • A: Logistic • Q: Which type of limiting factor affects a population as it grows larger? • A: Density-Dependent (Ex: amounts of food, space, water, etc.) Ecology – Limiting Factors

  7. Q: A hardwood forest is partially destroyed by a forest fire leaving soil and a few grasses. Over time, pioneer species like annual plants and pine saplings begin to grow. What type of succession is this? • A: Secondary Ecology – Succession

  8. Q: In which Biome would you find a plant with the following adaptations: waxy, evergreen needle leaves, deep tap roots, cone shaped structure? • A: Taiga, less so the Temperate Deciduous Forest Ecology – Biome Adaptions

  9. Q: Water has unique properties like hydrogen bonding, less density as a solid, cohesion and adhesion because water is ______. • A: Polar Biochemistry - Water

  10. Q: Which macromolecule provides structures and energy storage in plants, but quick energy in animals? • A: Carbohydrates • Q: What type of reaction breaks down bonds between monomers releasing energy? • A: Hydrolysis • Q: Which macromolecule, made of amino acids dictated by DNA, makes up enzymes and structures of living things? • A: Proteins Biochemistry - Macromolecules

  11. Q: What do enzymes do to the rate of reactions? • A: Act as a catalyst, speed up reactions. • Q: What do high temperature or pH changes do to enzymes? • A: It denatures the enzyme (changes its shape) • A: After a point, slows rate of reaction Biochemistry - Enzymes

  12. Q: A substance with a pH of 3 would be a _____ whereas a substance with a pH of 11 would be a ______. • A: acid…base Biochemistry - pH

  13. Q: A new cell is discovered. It has the following structures: Golgi bodies, nucleus, ribosomes, cell wall, chloroplasts, ER. What type of cell would this be? • A: Eukaryotic, Plant Cell Cells: Types

  14. Q: A cell is discovered and found to have the following structure: circular chromosome, ribosomes, cell wall, flagella. What type of cell is this? • A: Prokaryotic Cells: Types

  15. Q: A problem is detected in a cell. It is no longer packaging and shipping proteins correctly. Which organelle is malfunctioning? • A: Golgi Cells: Organelle Function

  16. Q: Which picture shows facilitated diffusion? • A: B – through a protein, high to low, no ATP. • Q: Which picture shows active transport? • A: C – from low to high, ATP A B C Cells – Membrane & Transport

  17. Q: A cell has a solute concentration of 3%. It is placed into a solution that has a 10% solute concentration. Assume the cell membrane is impermeable to the solute. The solution is ______ to the cell and therefore water will move _______. • A: hypertonic…out of the cell Cells – Membrane & Transport

  18. Q: What is the balanced equation for photosynthesis? • A: 6CO2 + 6H2O + Light  C6H12O6 + 6O2 • Q: Which step in photosynthesis would be prevented if CO2 was lacking – the light reactions or the Calvin Cycle? • A: The Calvin Cycle. Cells - Photosynthesis

  19. Q: What is the balanced equation for cell respiration? • A: 6O2 + C6H12O6  6H2O + 6CO2 + 36-38 ATP • Q: Which step of Cellular Respiration generates the most energy? • A: The Electron Transport Chain (ETC) Cells – Respiration

  20. Q: Error! A cell enters the M phase and its DNA was NOT copied! Which phase of the cell cycle had an error? • A: S phase • Q: The goal of mitosis is to produce genetically ______, ________ cells, whereas the goal of meiosis is to produce genetically ______, _______ cells. • A: identical, diploid….different, haploid Cell Cycle & Division

  21. B • Q: Which process describes meiosis? • A: Diagram B A Cell Cycle & Division

  22. Q: Name a disease that is the result of a non-disjunction mutation in meiosis. • A: Trisomy 21 (Down Syndrome) Cell Cycle & Division

  23. Q: In DNA, A pairs with ____ and C pairs with _____. • A: T…G • Q: If the DNA template sequence is ATGCTA, what is the complementary sequence the enzyme DNA polymerase would bring during replication? • A: TACGAT DNA

  24. Q: What are the two stages in protein synthesis? • A: Transcription & Translation • Q: Which stage takes place at the ribosome? • A: Translation • Q: If the DNA is TACAAACTCACT, what is the sequence of the mRNA transcript that would be made? • A: AUGUUUGAGUGA Protein Synthesis

  25. Q: If the DNA sequence is: TACAAACTCACT, what amino acid sequence will make up the protein? • A: Met – Phe – Glut Acid – Stop • Q: If the sequence lost its first A, • What type of mutation is this? • A: Frameshift – changes # of aa’s Protein Synthesis

  26. Q: What is the picture on the page called? • A: Karyotype • Q: From the picture on the page, you know the individual is ____. • A: male • Q: Chromosomes 1-22 are called __. • A: Autosomes Genetics – Human & Tech

  27. Q: What is this called? • A: DNA Fingerprint • Q: Who are the only people who have identical patterns? • A: Identical twins Genetics – Human & Tech

  28. Q: A mom with type O blood and a dad with type AB blood are having a baby. What blood types could their baby have? • A: A or B • Q: If you have type A blood, which types can you receive in a transfusion? • A: A or O Genetics – Human & Tech

  29. A normal father (XcY) and a mother who carries the allele for colorblindness (XcXc) are having fraternal twins – a boy and a girl. • Q: What is the probability their son will be colorblind? • A: 50% • Q: What is the probability their daughter will be colorblind? • A: 0% Genetics – Human & Tech

  30. Q: What are the three parts to Darwin’s Theory of Natural Selection? • A: Struggle for Existence, Survival of the Fittest, Descent with Modification • Q: T/F – Individual organisms can evolve. • A: F • Q: Organisms with the best adaptations to survive in their environment and reproduce are said to have _____. • A: Fitness Evolution

  31. A population of moth has two phenotypes – light and dark. Light moths are easily seen and eaten. Dark moths are camouflaged, survive and have more offspring. • Q: What type of Natural Selection – Stabilizing, Directional or Disruptive – is this? • A: Directional Evolution

  32. Q: Genetically, early human mothers could produce babies that range in size from 1kg-8kg. Today the range is 3-5kg. What type of Natural Selection – Directional, Stabilizing or Disruptive – is this? • A: Stabilizing Evolution

  33. Q: Name an adaptation that allowed Reptiles and Birds to be better fit for land environments. • A: Amniotic egg, scaly skin, lungs, more complex circulation • Q: Plants develop chemical toxins to prevent predation. What type of adaptation is this? • A: chemical (others are structural and behavioral) Evolution

  34. Q: Sharks and dolphins do NOT share a common ancestor very recently, but they look alike and share the same habitat. What type of evolution describes this? • A: Convergent Evolution

  35. Q: The wing of a bat and the flipper of a whale are both made up of the same bones which are slightly modified. They function differently but they show similar evolutionary origin. What are these structures called? • A: Homologous Structures Evolution

  36. A population of tortoises from a main land migrate to an island. The tortoises have a range in neck length from short to long. On the island, the short necked tortoises are better adapted to protect themselves against predators. Many generations later, most tortoises have very short necks due to this selection. Mutations and continued natural selection have caused changes in the tortoises gene pools. Eventually, the island tortoises are reproductively isolated from the mainland tortoises. • Q: Which level of evolution does this describe? • A: Speciation Evolution

  37. Q: Which two Kingdoms did both Aristotle & Linneaus have? • A: Plant & Animal • Q: Which two taxa are included in the Latin scientific name of an organism? • A: Genus and species; Ex: Homo sapiens Classification

  38. Q: A scientist finds a new pathogen. It contains an RNA genome surrounded by a protein capsid. A picture of it is below. Is this a virus or a bacterium? • A: Virus • Q: Are viruses considered living? • A: No. Virus/Bacteria

  39. Q: You find a pathogen which has the following characteristics: cell wall, pili, cell membrane, flagella, peptidoglycan, ribosomes, DNA. Is this a Virus, a Eubacterium or an Archaeabacterium? • A: Eubacterium Virus/Bacteria

  40. Q: Protists are considered the very first type of life with a ______ cell. • A: Eukaryotic Protists

  41. Q: T/F – Some fungi are autotrophic. • A: False • Q: T/F – Fungi spent much of their life cycle in the haploid stage. • A: True • Q: T/F – A fungus is the largest organism in the world. • A: True • Q: T/F – Fungi have cell walls like plants. • A: True – Fungi is made of chitin Fungus

  42. Q: Which group of plants is best adapted to living on land? • A: Vascular, Protected Seed Flowering Plants, AKA Angiosperms • Q: You find that a vascular plant’s phloem is not working properly. What problem will arise in the plant? • A: Not enough energy providing sugars will be transported to the lower region of the plant. Roots/stem will die due to lack of cellular respiration. Plants

  43. Q: Name an adaptation which will allow plants to survive and compete for light in crowded canopy. • A: Phototropism Plants

  44. Q: Why are animal-like Protists NOT considered true animals? • A: animal-like protists are unicellular. • Q: Which characteristics of echinoderms make them closest in relation to chordates? • A: deuterostome development & endoskeleton • Q: Name 3 animal adaptations that are successful on land. • A: Anything that prevents water loss, allows for moist respiratory surfaces, protects gametes and provides additional energy for needs on land. Ex: aminiotic egg, scaly skin, kidneys, lungs, closed circulation/4 chambered heart Animals

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