Original HESI A2 biology practice with written answers. Try the free samples below, then get all 10 biology questions in the full $39 bank.
Biology focuses on the foundations: the cell and its parts, cellular respiration and photosynthesis, metabolism, the major molecules of life, basic genetics and DNA, and how living things are classified. These are the building blocks a nursing science sequence assumes you already understand, so a clear grasp of each concept pays off later.
1. Which organelle is the primary site of ATP production through aerobic respiration in eukaryotic cells?
A. Golgi apparatusB. MitochondrionC. LysosomeD. Rough endoplasmic reticulumAnswer: B. Mitochondria carry out the citric acid cycle and oxidative phosphorylation, generating most of the cell's ATP.
2. A human somatic cell with 46 chromosomes undergoes mitosis. How many chromosomes will each daughter cell contain?
A. 23B. 46C. 92D. 69Answer: B. Mitosis produces two genetically identical diploid daughter cells, each with the same chromosome number as the parent (46).
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Biology focuses on the foundations: the cell and its parts, cellular respiration and photosynthesis, metabolism, the major molecules of life, basic genetics and DNA, and how living things are classified. These are the building blocks a nursing science sequence assumes you already understand, so a clear grasp of each concept pays off later.