Health Care > HESI > Actual Biology Practice Test HESI A2 Exam (All)
Actual Biology Practice Test HESI A2 Exam 1. Which of these is not a part of the body’s chemical defense system against infection? a) Agranulocyte b) Urine c) Hydrochloric acid d) Lysozyme... The correct answer is: Agranulocyte Explanation: Agranulocytes are a type of white blood cell and therefore are not a part of the body’s chemical defense system. 2. Which of these is considered an example of naturally acquired passive immunity? a) Attenuated (live) vaccine injection b) Exposure to a disease and subsequent immunity c) Inactivated (killed) vaccine injection d) Breastfeeding The correct answer is: Breastfeeding Explanation: Natural passive immunity occurs when live antibodies are transferred from one individual to another, such as when antibodies are transferred from a mother to her baby via breast milk. 3. Worms lack which of these? a) Eyes and ears b) Eyes and brain c) Brain and ears d) Nose and brain The correct answer is: Eyes and ears Explanation: Worms lack eyes, ears, and a nose, but they do have brains. 4. Which organelle is responsible for generating ATP that is used for chemical energy? a) Vesicle b) Golgi apparatus c) Mitochondria d) Ribosome The correct answer is: Mitochondria Explanation: The mitochondrion is often referred to as the “power plant” of the cell because it generates ATP, the cell’s source of chemical energy. 5. Which of these statements is true with regard to eukaryotic and prokaryotic cells? a) Prokaryotic cells can contain lysosomes. b) Prokaryotic cells have a nucleus. c) Eukaryotic cells have mitochondria. d) Prokaryotic cells can contain lysosomes and eukaryotic cells have mitochondria. The correct answer is: Eukaryotic cells have mitochondria. Explanation: One of the major differences between eukaryotic cells and prokaryotic cells is that eukaryotic cells contain organelles, such as mitochondria and lysosomes, whereas prokaryotic cells do not. [Show More]
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