Bios 105 Week one quiz

Bios 105 Week one quiz Question 1. Question : (TCO 1) Which of these is not a survival need? Student Answer: Oxygen Body temperature Reproduction Nutrients Water Instructor Explanation: Chapter 1 Points Received: 2 of 2 Comments: Question 2. Question : (TCO 1) Your body’s thermostat is located in a part of the brain called the hypothalamus. Which of the following elements of a control system does this area in the brain represent? Student Answer: Stimulus Afferent pathway Effector Efferent pathway Control center Instructor Explanation: Chapter 1 Points Received: 2 of 2 Comments: Question 3. Question : (TCO 1) Which ventral cavity subdivision has no bony protection? Student Answer: Pelvic Abdominal Cranial Thoracic Spinal Instructor Explanation: Chapter 1 Points Received: 0 of 2 Comments: Question 4. Question : (TCO 1) Which type of section could be used to separate the thoracic cavity from the abdominopelvic cavity? Student Answer: Sagittal Dorsal Transverse Coronal Ventral Instructor Explanation: Chapter 1 Points Received: 2 of 2 Comments: Question 5. Question : (TCO 1) Which of the following orientation terms have opposite meanings (in humans)? Student Answer: Distal and proximal Posterior and intermediate Medial and distal Superficial and proximal Medial and anterior Instructor Explanation: Chapter 1 Points Received: 2 of 2 Comments: Question 6. Question : (TCO 1) In describing the relationship between the patellar and popliteal regions, Student Answer: the patellar region is distal to the popliteal region. the patellar region is lateral to the popliteal region. the patellar region is proximal to the popliteal region. the patellar region is anterior to the popliteal region. the patellar region is superior to the popliteal region. Instructor Explanation: Chapter 1 Points Received: 2 of 2 Comments: Question 7. Question : (TCO 2) The reaction A + B AB is an example of a(n) Student Answer: exchange reaction. decomposition reaction. synthesis reaction. dehydration reaction. denaturation reaction. Instructor Explanation: Chapter 2 Points Received: 2 of 2 Comments: Question 8. Question : (TCO 2) Atomic mass is equivalent to the number of _____ in an atom. Student Answer: protons and neutrons protons neutrons electrons protons and electrons Instructor Explanation: Chapter 2 Points Received: 0 of 2 Comments: Question 9. Question : (TCO 2) The atomic number of an atom reveals the number of Student Answer: neutrons plus electrons. protons in the atomic nucleus. protons plus electrons. electrons in the atomic nucleus. protons plus neutrons. Instructor Explanation: Chapter 2 Points Received: 2 of 2 Comments: Question 10. Question : (TCO 2) Which of the following solutions is the weakest acid? Student Answer: A solution with a pH of 5.2 A solution with a pH of 6.4 A solution with a pH of 8.6 A solution with a pH of 10.1 A solution with a pH of 2.4 Instructor Explanation: Chapter 2 Points Received: 2 of 2 Comments: Question 11. Question : (TCO 2) Which of the following is an example of an inorganic molecule? Student Answer: RNA An amino acid Sodium chloride Cholesterol A fatty acid Instructor Explanation: Chapter 2 Question 12. Question : (TCO 2) Which of the following statements about enzymes is true? Student Answer: They are not reusable. They are carbohydrates. They are required in large amounts in order to be effective. They are stable at high temperatures. They are biological catalysts. Instructor Explanation: Chapter 2 Points Received: 2 of 2 Comments: