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Test your knowledge of biology with this practice exam, covering topics such as organisms, photosynthesis, cell respiration, species relationships, cell structures, genetics, and evolution.
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1. These organisms are responsible for changing organic materials into inorganic materials. • Bacteria • Consumers • Decomposers • Producers
2. Which of these will NOT put carbon dioxide into the air? • Burning organic materials • Cell respiration • Volcanoes • Photosynthesis
3. Classify the following species relationship: Mistletoe plants grow into the tissues of trees to get their nutrients. • competition • Commensalism • mutualism • parasitism • predation
4. Which of these statements about photosynthesis and cell respiration is true? • Reactants used in photosynthesis are also used in cell respiration. • Products formed in photosynthesis are also formed in cell respiration. • Products formed in photosynthesis are reactants used in cell respiration. • Reactants & products of photosynthesis and cell respiration don’t affect each other.
5. Which of these is responsible for transpiration? • Animals • Decomposers • Plants • Volcanoes
6. Which one of these do ALL prokaryotic and eukaryotic cells share? • Cell wall • Cytoplasm • Nucleus • Membrane-covered organelles
7. Which of these DOES NOT give energy as its main job? • Fats • Glucose • Glycogen • Proteins • Starch
8. The cell membrane is made of this molecule. • Carbohydrates • Lipids • Nucleic acids • Proteins
9. Which organelle has malfunctioned? The organism can’t break down food it eats. • Lysosome • Nucleus • Ribosome • Vesicle • Chloroplast
10. What type of transport is being used? Glucose goes into cell from high to low concentrations. • Active transport • Diffusion • Facilitated diffusion • Endocytosis • Osmosis
11. Which function is NOT served by cell division? • It allows a multicellular organism to increase in size. • It produces many types of cells that serve a variety of functions. • It replaces cells that wear out or are damaged • It decreases the efficiency of cells.
12. What is the purpose of mitosis? • to create 2 new cells • to grow the organism • to make sure cells are small • to divide the nucleus
13. If a heterozygous green pod plant is crossed with another heterozygous green pod plant, what is the probability that their offspring will express the recessive allele? • 0% • 25% • 50% • 75% • 100%
14. Which of these is accomplished by meiosis? Choose 2. • It ensures that chromosomes are evenly divided between the cells. • It allows multicellular organisms to get bigger in size. • It allows unicellular organisms to reproduce. • It produces gametes. • It allows organisms to replace worn out cells.
15. Meiosis is the process of making a(n) ___ cell into a(n) ___ cell, with only one set of chromosomes. • homologous; sister • gamete; body • diploid; haploid • haploid; diploid
16. Which of these is NOT evidence to show common ancestry? • Analogous structures • Similar DNA sequences • Similar embryo development • Homologous structures
17. Which of these will lead to geographic isolation? • Continental drift • Gene flow • Genetic drift • Mutations
18. A lake once had white fish in it separated into 2 lakes when water levels went down between then. There were some genetic mutations in each smaller lake, and when the water levels went up and the 2 lakes became one again, both variations could still interbreed. • Continental drift • Gene flow • Genetic drift • Natural selection
19. You want to find out the exact age of a sample. Which of these methods would you use? • Absolute dating • Carbon dating • Radiometric dating • All of these
20. Which of these has to happen for a population to be considered a new species? • The don’t reproduce with the origianl population. • They have to overproduce offspring. • Hybrids are formed. • Two populations interbreed.
Answer Key 1. c 11. d 2. d 12. d 3. d 13. b 4. c 14. a, d 5. c 15. c 6. b 16. a 7. d 17. a 8. b 18. b 9. a 19. d 10. c 20. a