HESI A2 Biology Questions with 100% Correct Answers

HESI A2 Biology Questions with 100% Correct Answers Why is polarity the most important characteristic of water? - Correct Answer ️️ -The results of the polarity are hydrogen bonding, a high specific heat value, and its versatile solvent properties. Athletes are often concerned with the question of what they need in their diets to increase muscle mass and strength. What biologic molecule would you recommend that would accomplish this? A. Carbohydrates B. Proteins C. Lipids D. Nucleic acids - Correct Answer ️️ -B. Proteins Which organelle would you expect to be present in a cell responsible for detoxifying multiple molecules? A. Rough ER B. Smooth ER C. Lysosome D. Golgi apparatus - Correct Answer ️️ -B. Smooth ER A cell from heart muscle would more than likely contain an usually high proportion of: A. Lysosomes B. Mitochondria C. mRNA D. Ribosomes - Correct Answer ️️ -B. Mitochondria Which part of cell respiration produces the greatest amount of ATP? A. ETC B. Glycolysis C. Krebs cycle D. Fermentation - Correct Answer ️️ -A. ETC When plants do not receive enough water their photosynthetic rated drops. This is because: A. Water is a raw material for the light reactions in photosynthesis. B. Carbon dioxide is not available. C. Water provides the carbon atoms used to make sugar. D. Not enough oxygen is produced to keep fermentation running - Correct Answer ️️ - A. Water is a raw material for the light reactions in photosynthesis Which of the following statements is true about the Krebs cycle and the Calvin cycle? A. Both result in a net production of ATP and NADH B. Both require a net input of ATP C. Both result in release of oxygen D. Both use light to initiate the process. - Correct Answer ️️ -A. Both result in a net production of ATP and NADH Why is it important for cells to undergo mitosis? - Correct Answer ️️ -Mitosis produces cells for growth and repair of body tissue. 72 chromosomes undergo meiosis. How many chromosomes will be in each gamete? A. 18 B. 36 C. 72 D. 144 - Correct Answer ️️ -B. 36 Which of the following shows how information is transformed to make a protein? A. DNA-RNA-protein B. Gene-chromosome-protein C. ATP-amino acid-protein D. RNA-DNA-protein - Correct Answer ️️ -A. DNA-RNA-protein In the hierarchic system of classification, which of the following is least inclusive? A. Kingdom B. Class C. Genus D. Species - Correct Answer ️️ -D. Species After observing an event, you develop an explanation. This statement is referred to as which of the following? A. Hypothesis B. Experiment C. Conclusion D. Theory - Correct Answer ️️ -A. Hypothesis A molecule of water is bonded with another molecule of water by what type of bond? A. Ionic B. Covalent C. Hydrogen D. Molecular - Correct Answer ️️ -C. Hydrogen Which of the following is a benefit of the intermolecular hydrogen bonding of water? (Select all that apply) A. Water has a relatively high specific heat value. B. Water has strong cohesive and adhesive properties. C. Polarity of water allows it to act as a versatile solvent. D. Water moves from higher to lower concentrations - Correct Answer ️️ -A. Water has a high specific heat B. Water has strong cohesive and adhesive properties C. Polarity of water allows it to act as a versatile solvent Of all the molecules that are significant to biology, which of the following are considered the most important? A. Carbohydrates, lipids, protein, and nucleic acids B. Carbohydrates, lipids, protein, and calcium C. Carbohydrates, lipids, protein, and sulfur D. Carbohydrates, lipids, protein, and iron - Correct Answer ️️ -A. Carbohydrates, lipids, protein, and nucleic acids Lipids are better known as fats, but what are they specifically? (Select all that apply.) A. Fatty acids B. Phospholipids C. Ketones D. Steroids - Correct Answer ️️ -A. Fatty acids B. Phospholipids D. Steroids What are the two categories of fatty acids? A. Trans fat and saturated fat B. Trans fat and unsaturated fats C. Saturated fats and unsaturated fats D. Saturated fats and polyunsaturated fats - Correct Answer ️️ -C. Saturated fats and unsaturated fats How do phospholipids function in cells?