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AP1 Exam 2

HEAL100 Health Care — exam and revision material · Other

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Health Care exam material, 86 pages. Originally published on StudyMerit.

Pages
86
Academic year
2025/2026
Language
English

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AP1 Exam 2 What is the smallest level of organization in the body that contains the body's genetic information? Select one: a. chemical b. cellular c. tissue d. organism 4 Ans 4 B. Cellular The cellular level includes the nucleus, an organelle that contains the body's genetic information. Which is an example of a normally occurring positive-feedback mechanism? Select one: a. elevated blood pressure during exercise b. increase in heart rate after blood loss c. decrease in blood pressure after blood loss d. stretching of the uterus near the end of pregnancy 4 Ans 4 d. stretching of the uterus near the end of pregnancy Which of the following processes generates the most ATP within a human cell? Select one: a. glycolysis b. lactic acid fermentation c. oxidative phosphorylation d. citric acid cycle 4 Ans 4 c. oxidative phosphorylation Note: This is a sample of the exam. The full document contains all questions from the original AP1 exam.

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During DNA replication, how does each template strand eventually become two identical DNA molecules? Select one: a. The two strands form continuously, catalyzed by DNA polymeras e. b. The two strands form continuously, catalyzed by DNA ligase. c. One strand forms continuously, the other forms in short segments spliced by DNA polymerase. d. One strand forms continuously, the other forms in short segments spliced by DNA ligase. ✔ A ns ✔ d. One strand forms continuously, the other forms in short segments spliced by DNA ligase. Which is the most superficial layer of skin that is composed primarily of living cells? Select one: a. stratum corneum b. stratum lucidum c. stratum basale d. stratum spinosum ✔ Ans ✔ d. stratum spinosum Which of the following is the definition of a third degree burn? Select one: a. a burn that covers at least 25% of the skin b. a burn that has destroyed the dermis and epidermis c. a burn that can only be caused by fire d. a burn that does not leave scars ✔ Ans ✔ b. a burn that has destroyed the dermis and epidermis Which of the following types of openings in the skeletal system does a "sinus" describe? Select one:

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a. cavity b. c left c. hole d. tunnel ✔ Ans ✔ a. cavity Which of the following components of the bone matrix, when removed, allows the bone to be easily shattered? Select one: a. cartilage b. collagen c. hydroxyapatite d. mineral ✔ Ans ✔ b. collagen Which of the followin g is the most widely distributed type of muscle in the body? Select one: a. cardiac b. postural c. skeletal d. smooth ✔ Ans ✔ d. smooth Which sentence best describes the sliding filament model of muscle contraction? Select one: a. Actin and myosin filament s remain stationary. b. Actin and myosin myofilaments shorten. c. Sarcomeres and myofibrils contract. d. Sarcomeres and myofibrils lengthen. ✔ Ans ✔ c. Sarcomeres and myofibrils contract.

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