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EOCT Review #7 Biology/Mrs. McClain 35 Questions 1 In which structure would you find a nucleus? a. b. c. d. Bacteria cell Plant cell Prokaryote Virus 2 What type of mutation results when a nucleotide is lost during DNA replication? a. b. c. d. Substitution Insertion Inversion Deletion 3 Which class of macromolecules store and communicate genetic information? a. Carbohydrate b. Nucleic Acids c. Lipids d. Proteins 4 What is this called? a. b. c. d. Fertilization Crossing over Segregation Mitosis 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. b. c. d. Arginine-glycine-serine Serine-arginine-arginine Serine-arginine-glycine Serine-glycine-serine DNA codon Amino acid AGA Arginine AGC Serine AGT Serine GGA Glycine GGC Glycine GGG Glycine TTG Leucine TCG Serine TCT Serine 6 What is the capsid of a virus? a. b. c. d. The disease it causes The receptors to which it binds The genetic material The protein coat 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. b. c. d. Genetic engineering Replication Transcription Selective breeding 8 Where does translation occur? a. In the ribosomes b. In the mitochondria c. In the nucleus d. Outside of the cell 9 We did a LAB on this! Which of the following factors is MOST likely to affect the function of an enzyme? a. Catalysts b. Size of the beaker c. Proteins d. Temperature 10 A scientist who is studying oak trees would be a: a. b. c. d. Zoologist Botanist Ecologist Entomologist 11 Which of the following is a symbiotic relationship where both organism benefit? a. b. c. d. Mutualism Commensalism Altruism Competition 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. b. c. d. TGA GTC GTA AUG CUG AGU UGA GUC GUA ATG CTG AGT 13 Which of the following biomes has the MOST biodiversity? a. Tropical rainforest b. Desert c. Tundra d. Estuary 14 Which kingdom contains only singlecelled organisms? a. b. c. d. Eubacteria & Protista Eubacteria & Archaebacteria Archaebacteria & Animalia Plantae & Fungi 15 Which of the following are NOT in Kingdom Protista? a. Amoeba b. Paramecium c. Euglena d. Yeast 16 Which group of macromolecules includes enzymes? a. b. c. d. lipids carbohydrates Nucleic acids proteins Half Way There! 17 Human activities that increase carbon dioxide in the atmosphere are likely to be responsible for which of the following environmental changes? a. b. c. d. Decreased plant growth Tsunamis An ice age Global warming 18 To what kingdom do mushrooms belong? a. b. c. d. Eubacteria Protista Fungi Plantae 19 Which of the following statements BEST describes a function of an enzyme? a. Enzymes are specialized proteins that serve as catalysts. b. Enzymes are molecules made of carbohydrates found in all cells. c. The structure of an enzyme is denatured during a chemical reaction. d. All enzymes work on all substances. 20The diagrams below show two amino acids. What would biochemists call the molecule made by chaining many of these amino acids together? a. b. c. d. Carbohydrate Protein Lipid Nucleic Acid 21 Which trophic level provides nourishment for the most organisms in the biome? a. b. c. d. First-order consumers Second-order consumers Producers Decomposers 22 Which of the following pairs of animals are most likely to have a predator/prey relationship? a. b. c. d. Dog and tapeworm Spider and fly Buffalo and tickbird Whale and barnacle 23 In a DNA molecule, thymine always pairs with a. b. c. d. Cytosine Guanine Adenine Uracil 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. 25 Glucose is formed by plants when they carry out photosynthesis. Glucose is an example of a a. Protein b. Carbohydrate c. Lipid d. Nucleic Acid 26 Sharks and penguins both use fins to swim, but their fins developed differently. What type of structures are these? a. b. c. d. Analogous structures Homologous structures Fossilized structures Biochemical structures 27 What is the best definition of an ecosystem? a. b. c. d. Living things in a given area Nonliving things in a given area Plants and animals only All the living and nonliving things in a given area 28 What is a primary cause of algal blooms (eutrophication) in aquatic ecosystems? a. b. c. d. Nutrient-rich run-off Increased biodiversity High oxygen levels Loss of algae in the food web 29 Which of the following chemical reactions produces the initial food required for all life on Earth? a. b. c. d. CO2 + H2O + sunlight C6H12O6 + O2 O2 + C6H12O6 CO2 + H2O CO2 + ATP C6H12O6 + O2 None above 30 Which of the following is an abiotic factor in an ecosystem? a. b. c. d. Predator Earthquake Disease Competition 31 What is the name of this organelle? a. b. c. d. Chloroplast Endoplasmic Reticulum Nucleus Vacuole 32 Which of the following is an advantage of sexual reproduction over asexual reproduction? a. It does not require specialized sex cells b. It requires less energy c. It leads to greater genetic diversity in a population d. It requires only one parent 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 34 Pea Plants can either be tall or short. In this cross, what will be the genotypic percentages? a. b. c. d. 100% Tt 50% TT and 50% tt 100% tall 50% tall and 50% short T T t t T = Tall t = Short 35 How do enzymes speed up chemical reactions? a. By raising the activation energy b. By lowering the activation energy c. By becoming part of the reaction d. By releasing proteins The End