EOCT Review

1. EOCT Review #7 Biology/Mrs. McClain 35 Questions

2. 1 In which structure would you find a nucleus? a. Bacteria cell b. Plant cell c. Prokaryote d. Virus

3. 2 What type of mutation results when a nucleotide is lost during DNA replication? a. Substitution b. Insertion c. Inversion d. Deletion

4. 3 Which class of macromolecules store and communicate genetic information? a. Carbohydrate b. Nucleic Acids c. Lipids d. Proteins

5. 4 What is this called? a. Fertilization b. Crossing over c. Segregation d. Mitosis

6. 5 The table shows several DNA codons and their corresponding amino acids. If a sequence of DNA reads AGT GGG TCT, for what sequence of amino acids does it code? a. Arginine-glycine-serine b. Serine-arginine-arginine c. Serine-arginine-glycine d. Serine-glycine-serine

7. 6 What is the capsid of a virus? a. The disease it causes b. The receptors to which it binds c. The genetic material d. The protein coat

8. 7 Biotechnology is the use of organisms or their products to improve human health and food production. Sometimes scientist change the DNA of an organism by inserting a gene from another organism. What is this process called? a. Genetic engineering b. Replication c. Transcription d. Selective breeding

9. 8 Where does translation occur? a. In the ribosomes b. In the mitochondria c. In the nucleus d. Outside of the cell

10. 9 We did a LAB on this! Which of the following factors is MOST likely to affect the function of an enzyme? • Catalysts • Size of the beaker • Proteins • Temperature

11. 10 A scientist who is studying oak trees would be a: a. Zoologist b. Botanist c. Ecologist d. Entomologist

12. 11 Which of the following is a symbiotic relationship where both organism benefit? a. Mutualism b. Commensalism c. Altruism d. Competition

13. 12 An RNA molecule was synthesized to form complementary base pairs with a DNA molecule. The sequence of the DNA was TACGACTCA. The RNA sequence should be: a. TGA GTC GTA b. AUG CUG AGU c. UGA GUC GUA d. ATG CTG AGT

14. 13 Which of the following biomes has the MOST biodiversity? • Tropical rainforest • Desert • Tundra • Estuary

15. 14 Which kingdom contains only single-celled organisms? a. Eubacteria & Protista b. Eubacteria & Archaebacteria c. Archaebacteria & Animalia d. Plantae & Fungi

16. 15 Which of the following are NOT in Kingdom Protista? • Amoeba • Paramecium • Euglena • Yeast

17. 16 Which group of macromolecules includes enzymes? a. lipids b. carbohydrates c. Nucleic acids d. proteins

18. Half Way There!

19. 17 Human activities that increase carbon dioxide in the atmosphere are likely to be responsible for which of the following environmental changes? a. Decreased plant growth b. Tsunamis c. An ice age d. Global warming

20. 18 To what kingdom do mushrooms belong? a. Eubacteria b. Protista c. Fungi d. Plantae

21. 19 Which of the following statements BEST describes a function of an enzyme? • Enzymes are specialized proteins that serve as catalysts. • Enzymes are molecules made of carbohydrates found in all cells. • The structure of an enzyme is denatured during a chemical reaction. • All enzymes work on all substances.

22. 20 The diagrams below show two amino acids. What would biochemists call the molecule made by chaining many of these amino acids together? a. Carbohydrate b. Protein c. Lipid d. Nucleic Acid

23. 21 Which trophic level provides nourishment for the most organisms in the biome? a. First-order consumers b. Second-order consumers c. Producers d. Decomposers

24. 22 Which of the following pairs of animals are most likely to have a predator/prey relationship? a. Dog and tapeworm b. Spider and fly c. Buffalo and tickbird d. Whale and barnacle

25. 23 In a DNA molecule, thymine always pairs with a. Cytosine b. Guanine c. Adenine d. Uracil

26. 24 Which of the following feet belongs to the bird BEST adapted to survive in an environment in which they need to swim to find food? a. c. b. d.

27. 25 Glucose is formed by plants when they carry out photosynthesis. Glucose is an example of a • Protein • Carbohydrate • Lipid • Nucleic Acid

28. 26 Sharks and penguins both use fins to swim, but their fins developed differently. What type of structures are these? a. Analogous structures b. Homologous structures c. Fossilized structures d. Biochemical structures

29. 27 What is the best definition of an ecosystem? a. Living things in a given area b. Nonliving things in a given area c. Plants and animals only d. All the living and nonliving things in a given area

30. 28 What is a primary cause of algal blooms (eutrophication) in aquatic ecosystems? a. Nutrient-rich run-off b. Increased biodiversity c. High oxygen levels d. Loss of algae in the food web

31. 29 Which of the following chemical reactions produces the initial food required for all life on Earth? a. CO2 + H2O + sunlight  C6H12O6 + O2 b. O2 + C6H12O6 CO2 + H2O c. CO2 + ATP  C6H12O6 + O2 d. None above

32. 30 Which of the following is an abiotic factor in an ecosystem? a. Predator b. Earthquake c. Disease d. Competition

33. 31 What is the name of this organelle? a. Chloroplast b. Endoplasmic Reticulum c. Nucleus d. Vacuole

34. 32 Which of the following is an advantage of sexual reproduction over asexual reproduction? • It does not require specialized sex cells • It requires less energy • It leads to greater genetic diversity in a population • It requires only one parent

35. 33 Based on the summary equation for photosynthesis shown below, which of the following is a product of the reaction? CO2 + H2O  C6H12O6 + O2 a. H2O b. C6H12O6 c. light d. CO2

36. 34 Pea Plants can either be tall or short. In this cross, what will be the genotypic percentages? a. 100% Tt b. 50% TT and 50% tt c. 100% tall d. 50% tall and 50% short T T t t T = Tall t = Short

37. 35 How do enzymes speed up chemical reactions? • By raising the activation energy • By lowering the activation energy • By becoming part of the reaction • By releasing proteins

38. The End