This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Biology – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biology Quiz 9 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The waste products of aerobic cellular respiration are ..... A) Alcohol and carbon dioxide. B) Lactic acid and water. C) Carbon dioxide and water. D) Oxygen and water. Show Answer Correct Answer: C) Carbon dioxide and water. 2. The function of the plasma membrane is ..... A) To regulate what enters and leaves the cell. B) Fight bacteria and viruses that enter the cell. C) Provide rigid support and protection to the cell. D) Make sure each cell can move. Show Answer Correct Answer: A) To regulate what enters and leaves the cell. 3. Which direction does the phloem transport materials? A) Up the plant at night and down the plant during the day. B) Up and down the plant all the time. C) Up the plant only. D) Down the plant only. Show Answer Correct Answer: B) Up and down the plant all the time. 4. What is the maindifference between prokaryotic and eukaryotic cells? A) Prokaryotic cells have a nucleus and Eukaryotic cells do not. B) Prokaryotic cells are unicellular and Eukaryotic cells are multicellular. C) Prokaryotic cells do not have a nucleus, Eukaryotic cells do have a nucleus. D) Prokaryotic cells are plant cells and Eukaryotic cells are animal cells. Show Answer Correct Answer: C) Prokaryotic cells do not have a nucleus, Eukaryotic cells do have a nucleus. 5. This is referred to as the energy currency of the cell A) Nucleus. B) ATP. C) Mitochondria. D) ADP. Show Answer Correct Answer: B) ATP. 6. Thin stalk that connects the blade of the leaf to the plant's stem A) Petiole. B) Cuticle. C) Blade. D) Epidermis. Show Answer Correct Answer: A) Petiole. 7. What will most likely happen if the human population continues to grow at current rates? A) There will be an increase in the number of strong hurricanes. B) There will be an incresae in nitrogen levels in the atmosphere. C) There will be fewer natural resources available for future generations. D) There will be a decrease in water pollution. Show Answer Correct Answer: C) There will be fewer natural resources available for future generations. 8. Which group to these belong to? sea star, brittle star, sea cucumber, sea urchin A) Sponges. B) Mollusks. C) Echinoderms. D) Fish. Show Answer Correct Answer: C) Echinoderms. 9. Where are free nucleotides added to a newly growing strand? A) To the 3'OH group of the previous deoxyribose sugar. B) To the 5'OH group of the previous deoxyribose sugar. C) To the 5'OH group of the previous phosphate group. D) To the 3'OH group of the previous phosphate group. Show Answer Correct Answer: A) To the 3'OH group of the previous deoxyribose sugar. 10. What happens in the lysogenic cycle? A) A virus injects its genetic material into a host cell. B) Bacteria injects DNA into a host cell. C) Bacteria injects genetic material into a host cell. D) A virus injects DNA into a host cell. Show Answer Correct Answer: A) A virus injects its genetic material into a host cell. 11. Which of the following is a Red alga? A) Polysiphonia. B) Chara. C) Laminaria. D) Fucus. Show Answer Correct Answer: A) Polysiphonia. 12. What is photosynthesis? A) Water loss by a plant. B) The process in which plants make their food. C) When a photographer takes a photo. D) To get your pictures from the photo lab. Show Answer Correct Answer: B) The process in which plants make their food. 13. Which of the following is the smallest unit of life that can carry out all life functions? A) The vacuoles. B) The cell. C) The nucleus. D) The mitochondria. Show Answer Correct Answer: B) The cell. 14. Which carries water and minerals from roots to other parts of the plant? A) Phloem. B) Guard cell. C) Xylem. D) Stoma. Show Answer Correct Answer: C) Xylem. 15. Who first proposed binomial nomenclature as a way of classifying organisms? A) Charles Darwin. B) Carl Linnaeus. C) Carl's Jr. D) Henry Groseclose. Show Answer Correct Answer: B) Carl Linnaeus. 16. Carnations can be induced to flower in the winter by: A) Inhibiting the hormone auxin. B) Keeping daylight short in a greenhouse. C) Inhibiting the amount of Pr. D) Keeping daylight long in a greenhouse. Show Answer Correct Answer: D) Keeping daylight long in a greenhouse. 17. Which force directly causes water molecules to stick to the xylem wall? A) Adhesion. B) Cohesion. C) Gravity. D) Tension. Show Answer Correct Answer: A) Adhesion. 18. What is the reason for Okazaki fragments being formed during DNA replication? A) To enable replication of the 3' $\rightarrow$ 5' (lagging) strand. B) To form the template for the RNA primers. C) To initiate replication on the 5' $\rightarrow$ 3' (leading) strand. D) To help the DNA helicase unwinding the DNA helix. Show Answer Correct Answer: A) To enable replication of the 3' $\rightarrow$ 5' (lagging) strand. 19. I am an ichthyologist. What do I study? A) Fish. B) Ducks. C) Fungi. D) Humans. Show Answer Correct Answer: A) Fish. 20. If a scientist is studying the methods of inserting human insulin gene in bacteria, which branch of biology may this be? A) Anatomy. B) Physiology. C) Biotechnology. D) Pharmacology. Show Answer Correct Answer: C) Biotechnology. 21. During which phase of the cell cycle is the cell growing and preparing for cellular division? A) Interphase. B) Prophase. C) Cytokinesis. D) Anaphase. Show Answer Correct Answer: A) Interphase. 22. Lots of chloroplasts, cylindrical cells, close together A) Xylem. B) Palisade mesophyll. C) Spongy mesophyll. D) Root hair cell. Show Answer Correct Answer: B) Palisade mesophyll. 23. In flowering plants, which of the following helps seed dispersal? A) Pollens. B) Bees. C) Mammals. D) Germination. Show Answer Correct Answer: C) Mammals. 24. What happens to the transpiration rate as light intensity increases? A) It increases. B) It stays the same. C) It decreases. D) None of above. Show Answer Correct Answer: A) It increases. 25. Which one of these is Not a characteristic of a hypothesis? A) Must be correct. B) Must be consistent with all available data. C) Must be testable. D) Must make predictions. Show Answer Correct Answer: A) Must be correct. 26. What is the main explanation for the fact that water can cause hydrostatic pressure? A) Because it attracts other water molecules. B) Because it exhibits electronegativity. C) Because it is polar. D) Because it is incompressible. Show Answer Correct Answer: D) Because it is incompressible. 27. What do you call all of the living things AND all of the non-living things together in the same environment? A) Population. B) Biome. C) Ecosystem. D) Community. Show Answer Correct Answer: C) Ecosystem. 28. What is name for synthetic polymers? A) Convlante bonds. B) Cellulose. C) Dehydration synthesis. D) Chemistry. Show Answer Correct Answer: D) Chemistry. 29. The chromatin fibers become more tightly coiled, condensing into discrete chromosomes observable with a light microscope. What phase is this? A) Anaphase. B) Interphase. C) Cytokinesis. D) Prophase. Show Answer Correct Answer: D) Prophase. 30. Households pollute water sources by ..... waste into ponds, lakes and rivers. A) Dumping. B) Damaging. C) Losing. D) Leading. Show Answer Correct Answer: A) Dumping. 31. What is a renewable resource? A) One that can be replaced quickly. B) One that comes from the sun. C) One that will never run out. D) One that is man-made. Show Answer Correct Answer: A) One that can be replaced quickly. 32. Which of the following play a role in stomata closing? A) K+ is pumped into guard cells; low levels of Abscisic Acid. B) K+ is pumped out of guard cells; high levels of Abscisic Acid. C) K+ pumped out of guard cell; low levels of Abscisic Acid. D) K+ is pumped into guard cells; high levels of Abscisic Acid. Show Answer Correct Answer: B) K+ is pumped out of guard cells; high levels of Abscisic Acid. 33. What is photoperiodism? A) The amount of chlorophyll in plants. B) The response of a plant to the length of night. C) The fertile time for a plant. D) The time in which photosynthesis can occur. Show Answer Correct Answer: B) The response of a plant to the length of night. 34. When substances enter a cell by going against the gradient, it is called A) Isotonic interaction. B) Facilitated diffusion. C) Passive transport. D) Active transport. Show Answer Correct Answer: D) Active transport. 35. A field ecologist wants to determine the interactions of various populations of organisms living in a large grassland field. Which method is best for conducting this study? A) Consulting with local farmers about the diversity of organisms in the field. B) Dividing the field in half, walking over it, counting organisms, and then doubling the numbers. C) Walking over the entire field, collecting the organisms and then compiling a total. D) Observing the behaviors of different types of organisms several times during the year. Show Answer Correct Answer: D) Observing the behaviors of different types of organisms several times during the year. 36. Which cell structure is found in plant and animals cells and controls what can come into or leave a cell? A) Cell membrane. B) Cytoplasm. C) Nucleus. D) Vacuole. Show Answer Correct Answer: A) Cell membrane. 37. Protein ..... are enzymes that activate or deactivate other proteins by phosphorylating them. To be active, each ..... must be attached to a ....., a protein that gets its name from its cyclically fluctuating concentration in the cell A) Cyclin, kinases, enzyme. B) Enzymes, kinases, cyclin. C) Kinases, kinases, cyclin. D) None of above. Show Answer Correct Answer: C) Kinases, kinases, cyclin. 38. Which part of the plant is needed for reproduction? A) Stem. B) Flower. C) Root. D) Leaf. Show Answer Correct Answer: B) Flower. 39. If guard cells are swollen with water, then they are more likely to be ..... A) OPEN with stomata. B) CLOSED with no stomata. C) Cannot tell-the water amount doesn't affect it at all. D) None of above. Show Answer Correct Answer: A) OPEN with stomata. 40. Which levels of hierarchy form the scientific name? A) Class and species. B) Order and genus. C) Phylum and species. D) Genus and species. Show Answer Correct Answer: D) Genus and species. 41. A plant growing towards sunlight would be an example of which characteristic of life? Select the best answer. A) Response to a stimuli. B) Capable of reproduction. C) Made up of cells. D) Growth and development. Show Answer Correct Answer: A) Response to a stimuli. 42. How can an experiment be improved? A) Increasing the sample size. B) Repeating the experiment. C) Make the procedure very detailed. D) All of the above. Show Answer Correct Answer: D) All of the above. 43. What part of a virus is the protein capsule that houses the genetic material (DNA/RNA)? A) Tail. B) Capsid. C) Glycoprotein. D) Nucleus. Show Answer Correct Answer: B) Capsid. 44. The life process known as "regulation" involves ..... A) Homeostasis. B) Maintaining a stable internal environment. C) Keeping a steady state. D) All of the above. Show Answer Correct Answer: D) All of the above. 45. Source or supply from which benefit is produced ..... A) Mutualism. B) Limiting factor. C) Resource. D) Boundaries. Show Answer Correct Answer: C) Resource. 46. If a snake eats a mouse that ate grain. The snake would be a A) Tertiary consumer. B) Secondary consumer. C) Producer. D) Primary consumer. Show Answer Correct Answer: B) Secondary consumer. 47. What is the function of nucleus? A) Structure that organizes motion of chromosomes. B) Structure that contains DNA and directs the cell. C) Membrane that surrounds and protects the cell. D) Stack of membranes that packages chemicals. Show Answer Correct Answer: B) Structure that contains DNA and directs the cell. 48. RNA has what base that is instead of thymine? A) Adenine. B) Uracil. C) Thymine. D) Guanine. Show Answer Correct Answer: B) Uracil. 49. What is embedded in the phospholipid bilayer? A) Proteins. B) Salt. C) Water. D) None of above. Show Answer Correct Answer: A) Proteins. 50. Who was the scientists that created the modern classification system we still use today? A) Carlos Linneaus. B) Charles Darwin. C) Socrates. D) Isaac Newton. Show Answer Correct Answer: A) Carlos Linneaus. 51. Why must radioactive CO2 be used when tracing phloem flow? A) It is incorporated into the phloem cells. B) It is incorporated into the sucrose during cellular respiration. C) It is incorporated into the minerals in the phloem. D) It is incorporated into the sucrose during photosynthesis. Show Answer Correct Answer: D) It is incorporated into the sucrose during photosynthesis. 52. Which best describes the flow of phloem? A) Source to sink; one direction. B) Source to sink; two directions. C) Root to shoot; one direction. D) Root to shoot; two directions. Show Answer Correct Answer: B) Source to sink; two directions. 53. Internal structure and organisation of living organisms. A) Taxonomy. B) Biotechnology. C) Anatomy. D) Physiology. Show Answer Correct Answer: C) Anatomy. 54. A student collects the gas given off from a plant in bright sunlight. The gas being collected is A) Oxygen. B) Vaporized water. C) ATP. D) Carbon dioxide. Show Answer Correct Answer: A) Oxygen. 55. A cell will ..... in a hypotonic solution. A) Swell and perhaps burst (lyse). B) Shrink. C) The size of the cell will not change. D) The size of the cell will change from large to small and from small to large. Show Answer Correct Answer: A) Swell and perhaps burst (lyse). 56. Identify the homogeneous group of cells which occupy the centre of each microsporangium. A) Megaspore mother cell. B) Nucellus. C) Synergid cells. D) Sporogenous tissue. Show Answer Correct Answer: D) Sporogenous tissue. 57. Plant cells develop turgor pressure when they are placed in ..... solution A) Hypertonic. B) Mesotonic. C) Isotonic. D) Hypotonic. Show Answer Correct Answer: D) Hypotonic. 58. During respiration in lungs, the exchange of gases is made by A) Trachea. B) Bronchioles. C) Alveoli. D) Bronchus. Show Answer Correct Answer: C) Alveoli. 59. By which mechanism do greenhouse gases contribute to global warming? A) Short wave radiation emitted from the Earth's surface increases with their concentration. B) They absorb higher amounts of long wave radiation emitted from the Earth's surface as their concentration increases. C) They absorb higher amounts of short wave radiation caused by increased combustion of fossilized organic matter. D) Their higher concentration absorbs more long wave radiation coming from the Sun. Show Answer Correct Answer: B) They absorb higher amounts of long wave radiation emitted from the Earth's surface as their concentration increases. 60. Which of the chambers has the highest pressure? A) Right verticle. B) Left atrium. C) Left verticle. D) None of above. Show Answer Correct Answer: C) Left verticle. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesBiology Quiz 1Biology Quiz 2Biology Quiz 3Biology Quiz 4Biology Quiz 5Biology Quiz 6Biology Quiz 7Biology Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books