PAX Exam SCIENCE practice
questions/NLN PAX Science 2 Practice
Questions with correct answers
the nails and hair are a part of which body system? - ANS integumentary system
if a homozygous red bird (RR) is crossed with a homozygous blue bird (rr), what is the
probability that the offspring will have red feathers? - ANS 100%
what are the main parts of the brain? - ANS Cerebrum, cerebellum and the medulla
oblongata
how many amino acids are required to make all the proteins necessary for life? - ANS
20
which of the following is NOT a type of natural lipid? - ANS supersaturated
supersaturated is created from a supersaturated sugar solution
the parathyroid gland is an endocrine system gland located behind the thyroid gland.
what does the parathyroid gland help the body control? - ANS calcium and
phosphorous levels
the radius and the ulna are two bones found in which of the following locations? - ANS
the forearm
which of the following endocrine system glands is PRIMARILY responsible for regulating
an individual's metabolism and energy? - ANS thyroid gland
atoms are made up of all the following EXCEPY which one? - ANS isotopes
consider the following categories for "Skin Diseases: Types of Lesions": Nodules,
Pustules, Plaques, Ulcers, & ___ - ANS cysts
what allows water to act as a versatile solvent? - ANS its polarity
,what characteristic of water allows for hydrogen bonding between molecules? - ANS
its polar nature
gastric fluid is an acidic substance. the pH value of gastric fluid would most likely be
which of the following? - ANS 1.5
pH level goes
less than 7=acidic
7=neutral
higher than 7=bases
how many chromosomes does a diploid cell contain? - ANS 46
which of the following solutions makes a new type of metal by combining solid solutions
of other metals? - ANS alloys
How many periods are on the periodic table? - ANS 7
which body system does the liver belong to? - ANS gastrointestinal (Digestive)
system
which body system functions to provide structural, protective, and metabolic needs? -
ANS skeletal system
which of the following is the deposition of a liquid or a solid from its vapor? - ANS
condensation
what is the oxidation number of an elemental atom? - ANS 0
the grouping of elements by their properties is known as what? - ANS the periodic
table
AG is the symbol for which element? - ANS silver
when a liquid substance reached a specific temp it will transform into vapor. this is
called what? - ANS the boiling point of the substance
what is the normal human body temp in celsius? - ANS 37 degrees celsius
an example of a synthesis chemical reaction - ANS S + O2 --> SO2
, what type of cell is this?
thin, flat, and bulged around the nucleus - ANS squamous
what is responsible for the synthesis of lipids and hormones that are used for the
production of new cellular membranes? - ANS Smooth endoplasmic reticulum
what is the difference between saturated and unsaturated fatty acids? - ANS
saturated fatty acids contain no double bonds, unlike unsaturated fatty acids
DNA contains 4 nitrogenous bases that form hydrogen bonds with another base. what
base does adenine (A) bond with? - ANS Thymine
what is an organized structure of DNA and proteins found in cells? - ANS
chromosomes
Adrenalcorticotropic Hormone (ACTH) is produced by the pituitary gland. which
identifies a function of ACTH? - ANS cortisol production
what term is used to describe a substance that can act as either a acid or a base? -
ANS amphoteric
what must happen first before a cell can divide to grow, develop, and reproduce? -
ANS DNA replication
what is the primary responsibility of the adrenal gland? (on the kidney) - ANS
regulation of blood sugar
what kind of tissue are neurons? - ANS nervous
how is an ion created? - ANS by the addition or subtraction of electrons
what is true of mitosis - ANS it occurs only in eukaryotic cells and it produces
daughter cells
what is the reason ice floats on water? - ANS it forms a lattice when freezing (allows
air to fill in gaps)
questions/NLN PAX Science 2 Practice
Questions with correct answers
the nails and hair are a part of which body system? - ANS integumentary system
if a homozygous red bird (RR) is crossed with a homozygous blue bird (rr), what is the
probability that the offspring will have red feathers? - ANS 100%
what are the main parts of the brain? - ANS Cerebrum, cerebellum and the medulla
oblongata
how many amino acids are required to make all the proteins necessary for life? - ANS
20
which of the following is NOT a type of natural lipid? - ANS supersaturated
supersaturated is created from a supersaturated sugar solution
the parathyroid gland is an endocrine system gland located behind the thyroid gland.
what does the parathyroid gland help the body control? - ANS calcium and
phosphorous levels
the radius and the ulna are two bones found in which of the following locations? - ANS
the forearm
which of the following endocrine system glands is PRIMARILY responsible for regulating
an individual's metabolism and energy? - ANS thyroid gland
atoms are made up of all the following EXCEPY which one? - ANS isotopes
consider the following categories for "Skin Diseases: Types of Lesions": Nodules,
Pustules, Plaques, Ulcers, & ___ - ANS cysts
what allows water to act as a versatile solvent? - ANS its polarity
,what characteristic of water allows for hydrogen bonding between molecules? - ANS
its polar nature
gastric fluid is an acidic substance. the pH value of gastric fluid would most likely be
which of the following? - ANS 1.5
pH level goes
less than 7=acidic
7=neutral
higher than 7=bases
how many chromosomes does a diploid cell contain? - ANS 46
which of the following solutions makes a new type of metal by combining solid solutions
of other metals? - ANS alloys
How many periods are on the periodic table? - ANS 7
which body system does the liver belong to? - ANS gastrointestinal (Digestive)
system
which body system functions to provide structural, protective, and metabolic needs? -
ANS skeletal system
which of the following is the deposition of a liquid or a solid from its vapor? - ANS
condensation
what is the oxidation number of an elemental atom? - ANS 0
the grouping of elements by their properties is known as what? - ANS the periodic
table
AG is the symbol for which element? - ANS silver
when a liquid substance reached a specific temp it will transform into vapor. this is
called what? - ANS the boiling point of the substance
what is the normal human body temp in celsius? - ANS 37 degrees celsius
an example of a synthesis chemical reaction - ANS S + O2 --> SO2
, what type of cell is this?
thin, flat, and bulged around the nucleus - ANS squamous
what is responsible for the synthesis of lipids and hormones that are used for the
production of new cellular membranes? - ANS Smooth endoplasmic reticulum
what is the difference between saturated and unsaturated fatty acids? - ANS
saturated fatty acids contain no double bonds, unlike unsaturated fatty acids
DNA contains 4 nitrogenous bases that form hydrogen bonds with another base. what
base does adenine (A) bond with? - ANS Thymine
what is an organized structure of DNA and proteins found in cells? - ANS
chromosomes
Adrenalcorticotropic Hormone (ACTH) is produced by the pituitary gland. which
identifies a function of ACTH? - ANS cortisol production
what term is used to describe a substance that can act as either a acid or a base? -
ANS amphoteric
what must happen first before a cell can divide to grow, develop, and reproduce? -
ANS DNA replication
what is the primary responsibility of the adrenal gland? (on the kidney) - ANS
regulation of blood sugar
what kind of tissue are neurons? - ANS nervous
how is an ion created? - ANS by the addition or subtraction of electrons
what is true of mitosis - ANS it occurs only in eukaryotic cells and it produces
daughter cells
what is the reason ice floats on water? - ANS it forms a lattice when freezing (allows
air to fill in gaps)
