HESI A2 ENTRANCE EXAM
HESI COMPREHENSIVE PRACTICE
EXAMINATION:
EXAM QUESTIONS 2026 VERIFIED
QUESTIONS AND DETAILED
ANSWERS A GRADED
.
Question 1 2 total marks
A substance is defined as a form of matter that has a definite composition and distinct properties. In an atom,
electrons are found in orbits or orbitals, while the nucleus contains protons and neutrons. The mass number is
calculated by adding the number of protons and neutrons together.
A If an element has a mass number of 14 and contains 8 neutrons, what is the atomic number (number of
protons) of this element?
A 22
B 8
C 6
D 14
, Where is the specific location of an electron within an atom?
A Orbit
B Nucleus
C Neutron
D Proton
Question 2 1 mark
Which biochemical compound group includes both bacon grease (solid at room temperature) and vegetable oil
(liquid at room temperature)?
A Nucleic Acids B
Proteins
C Lipids
D Carbohydrates
Question 3
What is the strongest type of intermolecular force identified in the source text?
A London dispersion forces
B Dipole-dipole interactions
C Hydrogen bonding
D Ionic bonding
Question 4 1 mark
In the process of respiration, which step occurs first?
A Electron transport chain B
Calvin cycle
C Glycolysis
D Krebs cycle
Question 5 1 mark
What is the systematic name for ammonia ( )?
, 1 mark
A Hydrogen nitrogen trihydride B
Nitrous acid
C Ammonium nitrate D
Nitrogen trioxide
Question 6 1 mark
What is the magnification of a standard ocular lens on a light microscope?
A 40x
B 100x
C 4x
D 10x
HESI COMPREHENSIVE PRACTICE
EXAMINATION:
EXAM QUESTIONS 2026 VERIFIED
QUESTIONS AND DETAILED
ANSWERS A GRADED
.
Question 1 2 total marks
A substance is defined as a form of matter that has a definite composition and distinct properties. In an atom,
electrons are found in orbits or orbitals, while the nucleus contains protons and neutrons. The mass number is
calculated by adding the number of protons and neutrons together.
A If an element has a mass number of 14 and contains 8 neutrons, what is the atomic number (number of
protons) of this element?
A 22
B 8
C 6
D 14
, Where is the specific location of an electron within an atom?
A Orbit
B Nucleus
C Neutron
D Proton
Question 2 1 mark
Which biochemical compound group includes both bacon grease (solid at room temperature) and vegetable oil
(liquid at room temperature)?
A Nucleic Acids B
Proteins
C Lipids
D Carbohydrates
Question 3
What is the strongest type of intermolecular force identified in the source text?
A London dispersion forces
B Dipole-dipole interactions
C Hydrogen bonding
D Ionic bonding
Question 4 1 mark
In the process of respiration, which step occurs first?
A Electron transport chain B
Calvin cycle
C Glycolysis
D Krebs cycle
Question 5 1 mark
What is the systematic name for ammonia ( )?
, 1 mark
A Hydrogen nitrogen trihydride B
Nitrous acid
C Ammonium nitrate D
Nitrogen trioxide
Question 6 1 mark
What is the magnification of a standard ocular lens on a light microscope?
A 40x
B 100x
C 4x
D 10x
