Chapter 2 Solving a Biological Problem PDF

- **Who discovered the Plasmodium parasite in blood?** - A) Darwin - B) Laveran - C) Pasteur - D) Koch - **Answer: B) Laveran** - **In which year did Laveran discover Plasmodium?** - A) 1850 - B) 1880 - C) 1900 - D) 1920 - **Answer: B) 1880** - **Plasmodium i...

- **Who discovered the Plasmodium parasite in blood?** - A) Darwin - B) Laveran - C) Pasteur - D) Koch - **Answer: B) Laveran** - **In which year did Laveran discover Plasmodium?** - A) 1850 - B) 1880 - C) 1900 - D) 1920 - **Answer: B) 1880** - **Plasmodium is associated with which disease?** - A) Dengue - B) Malaria - C) Cholera - D) Tuberculosis - **Answer: B) Malaria** - **What was Laveran's main observation about Plasmodium?** - A) It was found in mosquitoes - B) It was present in the blood of malaria patients - C) It caused tuberculosis - D) It could survive in water - **Answer: B) It was present in the blood of malaria patients** - **What is a hypothesis in the scientific process?** - A) A proven fact - B) A guess with no evidence - C) An intelligent guess made by a scientist - D) A statement with no scientific basis - **Answer: C) An intelligent guess made by a scientist** - **For a hypothesis to be valid, it must be:** - A) Proven immediately - B) Testable - C) Based on opinions - D) Irrefutable - **Answer: B) Testable** - **In the example given, what hypothesis is made about malaria?** - A) Malaria is a bacterial infection - B) Plasmodium is the cause of malaria - C) Mosquitoes are harmless - D) Malaria is spread by water - **Answer: B) Plasmodium is the cause of malaria** - **What process do biologists use to collect information about a hypothesis?** - A) Guessing - B) Assuming - C) Inductive and deductive reasoning - D) Observation only - **Answer: C) Inductive and deductive reasoning** - **Which mosquito is responsible for spreading malaria?** - A) Aedes - B) Culex - C) Anopheles - D) Mansonia - **Answer: C) Anopheles** - **The image in Figure 2.3 shows:** - A) An Anopheles mosquito - B) Human blood cells with Plasmodium - C) A healthy blood sample - D) Red and white blood cells - **Answer: B) Human blood cells with Plasmodium** - **The Anopheles mosquito shown in Figure 2.4 is:** - A) Male - B) Female - C) Juvenile - D) Non-vector - **Answer: B) Female** - **Which organism is directly linked to the transmission of malaria in humans?** - A) Bacteria - B) Virus - C) Plasmodium - D) Fungi - **Answer: C) Plasmodium** - **In the life cycle of Plasmodium, which stage occurs in human blood cells?** - A) Mosquito stage - B) Human liver stage - C) Sporozoite stage - D) Human blood cell stage - **Answer: D) Human blood cell stage** - **Figure 2.5 illustrates:** - A) The life cycle of a mosquito - B) The life cycle of the Plasmodium parasite - C) The digestive system of a mosquito - D) Human immune response to malaria - **Answer: B) The life cycle of the Plasmodium parasite** - **What reasoning type is used to form hypotheses?** - A) Random reasoning - B) Inductive and deductive reasoning - C) Mathematical reasoning - D) Intuitive reasoning - **Answer: B) Inductive and deductive reasoning** - **Malaria transmission requires which type of Anopheles mosquito?** - A) Male - B) Female - C) Juvenile - D) Both male and female - **Answer: B) Female** - **What did Laveran observe under the microscope in 1880?** - A) Red blood cells only - B) Tiny creatures he named Plasmodium - C) Viruses - D) Bacteria - **Answer: B) Tiny creatures he named Plasmodium** - **A hypothesis is described as:** - A) A fact - B) A statement that must be proven - C) An educated guess based on observations - D) A random guess - **Answer: C) An educated guess based on observations** - **The scientific process emphasizes that a hypothesis should be:** - A) Intuitive - B) Speculative - C) Testable and based on evidence - D) Obvious - **Answer: C) Testable and based on evidence** - **Which part of the body does Plasmodium affect first in the human host?** - A) Heart - B) Blood cells - C) Liver - D) Lungs - **Answer: C) Liver**