HESI A2 SCIENCE EXAM 2025
QUESTIONS AND ANSWERS
Which tissue cannot be considered a major tissue type - ANSWER✔✔-Extracellular Tissue
What is the chemical formula for Ammonia - ANSWER✔✔-NH3
Ions that have a negative charge - ANSWER✔✔-Anions
What is the most numerous element in the body - ANSWER✔✔-Hydrogen
In body weight calculations, what do we have as the highest concentration in the body -
ANSWER✔✔-Protein
The three dimensional shape of a molecule is known as - ANSWER✔✔-Conformation
Which of the following bases of base pairs is not associated with deoxyribonucleic acid -
ANSWER✔✔-Uracil
Which of the following base of base pairs is not associated with RNA - ANSWER✔✔-Thymine
The atomic weight of an atom is the ratio of an atom's mass compared to _____ atom -
ANSWER✔✔-Carbon
What is the characteristic number of covalent bonds that carbon forms - ANSWER✔✔-4
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 1
, DNA consists of how many chains of nucleotides coiled together - ANSWER✔✔-2
Alkaline solutions have a pH that is higher than what - ANSWER✔✔-7.0
Which cell is not considered a major class of biological units - ANSWER✔✔-cytosol cells
Which of the following is not considered a function of the plasma membrane in cells -
ANSWER✔✔-protein synthesis
Which organelle is responsible for protein synthesis - ANSWER✔✔-Ribosomes
One ____ is the heat required to increase the temp of water 1 degree if 1 gram of water is present
on the Celsius scale - ANSWER✔✔-Calorie
A state of chemical equilibrium where the product of the reaction has required almost all the
reactants - ANSWER✔✔-Irreversible reaction
The primary molecule of energy transfer is - ANSWER✔✔-ATP
In glucose breakdown what stage is the most energy produced - ANSWER✔✔-oxidative
phosphorylation
Arterioles, venules and capillaries are collectively known as - ANSWER✔✔-microcirculation
Which arteries carry low oxygenated blood to the lungs - ANSWER✔✔-pulmonary arteries
blood entering the right ventricle in the heart during normal circulation goes to the ______ next -
ANSWER✔✔-lungs
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
QUESTIONS AND ANSWERS
Which tissue cannot be considered a major tissue type - ANSWER✔✔-Extracellular Tissue
What is the chemical formula for Ammonia - ANSWER✔✔-NH3
Ions that have a negative charge - ANSWER✔✔-Anions
What is the most numerous element in the body - ANSWER✔✔-Hydrogen
In body weight calculations, what do we have as the highest concentration in the body -
ANSWER✔✔-Protein
The three dimensional shape of a molecule is known as - ANSWER✔✔-Conformation
Which of the following bases of base pairs is not associated with deoxyribonucleic acid -
ANSWER✔✔-Uracil
Which of the following base of base pairs is not associated with RNA - ANSWER✔✔-Thymine
The atomic weight of an atom is the ratio of an atom's mass compared to _____ atom -
ANSWER✔✔-Carbon
What is the characteristic number of covalent bonds that carbon forms - ANSWER✔✔-4
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 1
, DNA consists of how many chains of nucleotides coiled together - ANSWER✔✔-2
Alkaline solutions have a pH that is higher than what - ANSWER✔✔-7.0
Which cell is not considered a major class of biological units - ANSWER✔✔-cytosol cells
Which of the following is not considered a function of the plasma membrane in cells -
ANSWER✔✔-protein synthesis
Which organelle is responsible for protein synthesis - ANSWER✔✔-Ribosomes
One ____ is the heat required to increase the temp of water 1 degree if 1 gram of water is present
on the Celsius scale - ANSWER✔✔-Calorie
A state of chemical equilibrium where the product of the reaction has required almost all the
reactants - ANSWER✔✔-Irreversible reaction
The primary molecule of energy transfer is - ANSWER✔✔-ATP
In glucose breakdown what stage is the most energy produced - ANSWER✔✔-oxidative
phosphorylation
Arterioles, venules and capillaries are collectively known as - ANSWER✔✔-microcirculation
Which arteries carry low oxygenated blood to the lungs - ANSWER✔✔-pulmonary arteries
blood entering the right ventricle in the heart during normal circulation goes to the ______ next -
ANSWER✔✔-lungs
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
