HESI A2 Biology Practice questions and answers verified and updated.

HESI A2 Biology Practice questions and answers verified and updated. Using percent of body weight calculations, which of the following categories is found in the highest concentration in the body? Nucleic acids Lipids Carbohydrates Proteins - correct answers.Proteins Which of the following is not considered a major class of biological units? Viruses Eukaryotic cells Prokaryotic cells Cytosol cells - correct answers.Cytosol cells Which of the following reactions most appropriately matches the following definition: at a state of chemical equilibrium, the product of the reaction has required almost all of the reactants. Irreversible reaction Reversible reaction Combination reaction Catalyst reaction - correct answers.Irreversible reaction In which of the following stages of glucose breakdown is the most energy produced? Glycolysis Krebs Cycle Oxidative Phosphorylation Citric Acid Cycle - correct answers.Oxidative Phosphorylation Arterioles, venules, and capillaries are collectively known as _____. Macrocirculation Microcirculation Pulmonary trunk Hydrostatic gradient - correct answers.Microcirculation If an organism is AaBb, which of the following combinations in the gametes is impossible? AB aa aB Ab - correct What is the typical result of mitosis in humans? 2 diploid cells 2 haploid cells 4 diploid cells 4 haploid cells - correct answers.2 diploid cells How does water affect the temperature of a living thing? Water increases temperature Water keeps temperature stable Water decreases temperature Water does not affect temperature - correct answers.Water keeps temperature stable Which of the following is not a product of the Krebs cycle? carbon dioxide oxygen adenosine triphospate (ATP) energy carriers - correct n What kind of bond connects sugar and phosphate in DNA? hydrogen ionic covalent overt - correct ent What is the second part of an organism's scientific name? species phylum population kingdom - correct es How are lipids different than other organic molecules? They are indivisible They are not water soluble They contain zinc They form long proteins - correct answers.They are not water soluble Which of the following is not a steroid? cholesterol estrogen testosterone hemoglobin - correct lobin Which of the following properties is responsible for the passage of water through a plant? cohesion adhesion osmosis evaporation - correct ion Which hormone is produced by the pineal gland? insulin testosterone melatonin epinephrine - correct onin What is the name of the organelle that organizes protein synthesis? mitochondrion nucleus ribosome vauole - correct ome During which phase is the chromosome number reduced from diploid to haploid? S phase interphase meiosis meiosis I - correct is I What is the name for a cell that does not contain a nucleus? eukaryote bacteria prokaryote cancer - correct ryote What is the name for the physical presentation of an organism's genes? phenotype species phylum genotype - correct type