Hesi A2 Biology 2025/2026 Exam Questions With Correct Verified Answers | 100% Pass (A+ Certified)

HESI A2 BIOLOGY 2025/2026 EXAM QUESTIONS WITH CORRECT VERIFIED ANSWERS | 100% PASS (A+ CERTIFIED) Hierarchic Organizational system for nomenclature Answer Kingdom Phylum Class Order Family Genus Species (Least) "Keep Penguins Cool Or Find Good Shelter" Scientific Method Answer Observation Hypothesis Experiment Conclusion Water Answer All life, and therefore biology , occurs in water. Properties of Water Answer 2 Hydrogen bonds Covalently bonded to Oxygen. Hydrogen Bonding between molecules. - High specific heat - Large bodies or water stabilize climates - Strong cohesive and adhesive properties - Water freezes forms a lattice crystal resulting in ice floating in water. - Polarity of water allows it to act as a universal solvent. - Water can be used to dissolve different solvents. Carbohydrates Answer Long chains, or polymers of sugar. Most importantly form the backbone of DNA and RNA. Saturated Answer Clogs arteries. NO DOUBLE BONDS in their hydrocarbon tail. SOLID @ room temperature. Unsaturated Answer Double bond in their hydrocarbon tail. LIQUID at room temperature. Phospholipids Answer Phosphate group (polar) soluble in water. Hydrocarbon tail of fatty acids is nonpolar and nonsoluble in water. Ex. Cell Membrane Steroids Answer Are lipids, which are precursors to hormones and drugs Proteins Answer They are Polymers of 20 molecules called Amino Acids. Enzymes are a type of protein, which catalyze different reactions or processes. LARGEST Biological Molecule Cell Answer Fundamental unit of biology Prokaryotic Cells Answer NO defined nucleus and NO membrane- bound organelles. Eukaryotic Cells Answer Membrane-enclosed nucleus and series of membrane-bound organelles that carry out the functions of the cell as directed by the genetic information contained in the nucleus. Nucleus Answer Contains DNA called Chromosomes. Ribosomes Answer Are organelles that read the RNA produced in the nucleus and TRANSLATE the genetic instructions to produce PROTEINS. Bound ribosomes Answer Are found attached to the endoplasmic reticulum (ER) Free ribosomes Answer Are found in the cytoplasm Endoplasmic reticulum