HESI EXAM 1 QUESTION AND ANSWERS
GRADED A+ 2024/2025
Diffraction - Answer the bending of waves around a barrier
Diffusion - Answer movement of molecules from an area of higher concentration to an area of lower
concentration.
Dispersion - Answer the process in which white light separates into colors; occurs when white light travels
through a prism and breaks up into a range of colors
Displacement - answer the distance of the the final destination from the starting point. It is a VECTOR quantity
because it involves direction.
Distance - answer the total number of miles; it is said to be a scalar quantity because it involves just a number.
Electricity - answer flow of electrons through a wire.
Energy - answer the capacity to do work
Endoplasmic Reticulum - Answer there are two types of this, smooth and rough. The rough one has ribosomes
on the outer surface, while the smooth one does not. The rough one produces proteins, while the smooth one
works to transport proteins out of the cell.
Eukaryotic Cell - answer this type of cell possesses a nucleus. Multicellular organisms such as plants and
animals are examples of these types of cells. Some of these cells have a cell wall.
Frequency - answer the number of complete waves that pass through a point over a given amount of time.
radius - answer the measurement from the outside of the circle to the center
Reflection - answer the bouncing back of a wave when it hits a surface through which it cannot pass.
, Refraction - answer the bending of a wave as it passes at an angle from one medium to another
Resistance (R) - answer the ability of a substance to stop the flow of a current. It is measured in Ohms.
Ribosomes - Answer these are responsible for the production of proteins. They can be free and not bound to
any membranes or they can be bound to the outer membrane of the rough endoplasmic reticulum.
Golgi Bodies - Answer after modifying and packaging proteins and other macromolecules in the cell, this can
take on the process of exocytosis so that material can be secreted from the cell.
Hypertonic Solution - answer the outside solution has a higher concentration of solutes than the solution
inside of the cell--> In response, water leaves the cell in an attempt to dilute the outside solution and causes
the cell to shrivel and shrink.
Hypotenuse - Answer the longest side of a right-angled triangle, the side opposite of the right angle.
Hypotonic Solution - Answer when the outside solution has a lower concentration of solutes than the solution
in the cell--> In response, water moves from outside of the cell into the cell causing it to swell or burst.
Ex. Mrs. Cooper's car accident REGRETTABLY left her with multiple abrasions, and she felt MISERABLE.
Amplitude - answer the distance that crests and troughs are from normal
Cell Membrane - Answer not considered to be an organelle, this lipid bilayer contains BOTH hydrophobic and
hydrophilic portions to keep watery environments in and out of the cell as needed. It is selective in which
materials enter and exit the cell (SELECTIVELY PERMEABLE), Also present are proteins (some for transport) and
carbohydrates (for cell identification).
Chloroplasts - Answer Present in plants, it contains a substance called chlorophyll to carry out the process of
photosynthesis.
GRADED A+ 2024/2025
Diffraction - Answer the bending of waves around a barrier
Diffusion - Answer movement of molecules from an area of higher concentration to an area of lower
concentration.
Dispersion - Answer the process in which white light separates into colors; occurs when white light travels
through a prism and breaks up into a range of colors
Displacement - answer the distance of the the final destination from the starting point. It is a VECTOR quantity
because it involves direction.
Distance - answer the total number of miles; it is said to be a scalar quantity because it involves just a number.
Electricity - answer flow of electrons through a wire.
Energy - answer the capacity to do work
Endoplasmic Reticulum - Answer there are two types of this, smooth and rough. The rough one has ribosomes
on the outer surface, while the smooth one does not. The rough one produces proteins, while the smooth one
works to transport proteins out of the cell.
Eukaryotic Cell - answer this type of cell possesses a nucleus. Multicellular organisms such as plants and
animals are examples of these types of cells. Some of these cells have a cell wall.
Frequency - answer the number of complete waves that pass through a point over a given amount of time.
radius - answer the measurement from the outside of the circle to the center
Reflection - answer the bouncing back of a wave when it hits a surface through which it cannot pass.
, Refraction - answer the bending of a wave as it passes at an angle from one medium to another
Resistance (R) - answer the ability of a substance to stop the flow of a current. It is measured in Ohms.
Ribosomes - Answer these are responsible for the production of proteins. They can be free and not bound to
any membranes or they can be bound to the outer membrane of the rough endoplasmic reticulum.
Golgi Bodies - Answer after modifying and packaging proteins and other macromolecules in the cell, this can
take on the process of exocytosis so that material can be secreted from the cell.
Hypertonic Solution - answer the outside solution has a higher concentration of solutes than the solution
inside of the cell--> In response, water leaves the cell in an attempt to dilute the outside solution and causes
the cell to shrivel and shrink.
Hypotenuse - Answer the longest side of a right-angled triangle, the side opposite of the right angle.
Hypotonic Solution - Answer when the outside solution has a lower concentration of solutes than the solution
in the cell--> In response, water moves from outside of the cell into the cell causing it to swell or burst.
Ex. Mrs. Cooper's car accident REGRETTABLY left her with multiple abrasions, and she felt MISERABLE.
Amplitude - answer the distance that crests and troughs are from normal
Cell Membrane - Answer not considered to be an organelle, this lipid bilayer contains BOTH hydrophobic and
hydrophilic portions to keep watery environments in and out of the cell as needed. It is selective in which
materials enter and exit the cell (SELECTIVELY PERMEABLE), Also present are proteins (some for transport) and
carbohydrates (for cell identification).
Chloroplasts - Answer Present in plants, it contains a substance called chlorophyll to carry out the process of
photosynthesis.
