HESI A2 PRACTICE TEST QUESTIONS:
ENTRANCE EXAM | COMPLETE STUDY
GUIDE 2026/2027 | VERIFIED ANSWERS |
100% CORRECT | GRADED A+|PASS
QUARANTEED |BRAND NEW
Which animal has an open transport system? - ANSWER Grasshopper
How does an enzyme work on a chemical reaction that occurs in a substrate? -
ANSWER An enzyme speeds up the chemical reaction, because enzymes are
catalysts that speed up reactions. They do this by lowering the amount of energy
needed to begin the reaction.
Where is the ovary located in a flowering plant? - ANSWER Pistil
Two organisms live in a relationship from which both benefit -
ANSWER Mutualism, both species receive mutual benefit
Which gives the order of four taxonomic categories from least to most specific? -
ANSWER Kingdom phylum class order family genus species
Which molecules contain only carbon, hydrogen, and oxygen? -
ANSWER Carbohydrates and lipids
, Which structure is found in Protists but not in monerans? - ANSWER Golgi
apparatus
How does yeast reproduce? - ANSWER Budding
What takes place during anaphase? - ANSWER Chromosomes move to
opposite ends of the spindle
What is DNA composed of? - ANSWER Deoxyribose, a simple sugar, nitrogen-
based, and a phosphate group
What are the products of the Krebs cycle? - ANSWER ATP, carbon dioxide,
NADH
The Krebs or citric acid cycle is the third step of what? -
ANSWER Carbohydrate catabolism, the breakdown of sugar. Before it begins,
glucose has been broken down via glycolysis into pyruvic acid
Whose efficiency of energy is greater on the energy pyramid? -
ANSWER Herbivore
What is the function of decomposition in the carbon cycle? - ANSWER To
release carbon dioxide
Which light color would be most effective for growing green plants indoors? -
ANSWER Blue
,Which bacteria are spherical in shape? - ANSWER Cocci
What is the term for the breakdown of glycogen into glucose subunits? -
ANSWER Hydrolysis, in hydrolysis, any class of compound is broken down
into subunits through the addition of water
Which organelle provides storage space for the cell? - ANSWER Vacuoles
What is a byproduct of fermentation in muscle cells? - ANSWER Lactic acid
In which phase of mitosis do new nuclear membranes form around sets of
chromosomes? - ANSWER Telophase, the phase in which the spindle dissolves
and new membranes and nucleoli form, leading to two new cells
Which names a final step in protein synthesis? - ANSWER Amino acid bonds
What are the steps of protein synthesis? - ANSWER Coded info from DNA is
translated into a finished protein. First, DNA unzips and RNA nucleotides bind
with bases on each unzipped segment, forming messenger RNA. Then, messenger
RNA leaves the nucleus and attaches to a ribosome in the cytoplasm. Transfer
RNA moves into position along messenger RNA, and the amino acids attached to
the transfer RNA molecules bind, forming the protein.
Foods with high salt content do not have to be refrigerated. What natural process
prevents these foods from spoiling? - ANSWER Osmosis
, What is necessary for active transport through a membrane to take place? -
ANSWER ATP
What are enzymes made from? - ANSWER Proteins
What is an example of a gymnosperm? - ANSWER Red cedar
What is a symbiotic relationship in which one organism benefits and the other is
not affected? - ANSWER Commensalism
Dogs are part of a larger animal group, the Carnivora. What classification is this? -
ANSWER Order
What are saturated fats saturated with? - ANSWER Hydrogen atoms, all
carbons are attached to two hydrogen atoms
What is found in animal cells but not in plant cells? - ANSWER Centriole.
Vacuoles are found in plant cells but not in animal cells
Ocean waves may tear sponges into pieces, each of which may grow into a new
sponge. What is this form of reproduction called? - ANSWER Fragmentation
How many pairs of homologous chromosomes do humans have? -
ANSWER 23 pairs for a total of 46
ENTRANCE EXAM | COMPLETE STUDY
GUIDE 2026/2027 | VERIFIED ANSWERS |
100% CORRECT | GRADED A+|PASS
QUARANTEED |BRAND NEW
Which animal has an open transport system? - ANSWER Grasshopper
How does an enzyme work on a chemical reaction that occurs in a substrate? -
ANSWER An enzyme speeds up the chemical reaction, because enzymes are
catalysts that speed up reactions. They do this by lowering the amount of energy
needed to begin the reaction.
Where is the ovary located in a flowering plant? - ANSWER Pistil
Two organisms live in a relationship from which both benefit -
ANSWER Mutualism, both species receive mutual benefit
Which gives the order of four taxonomic categories from least to most specific? -
ANSWER Kingdom phylum class order family genus species
Which molecules contain only carbon, hydrogen, and oxygen? -
ANSWER Carbohydrates and lipids
, Which structure is found in Protists but not in monerans? - ANSWER Golgi
apparatus
How does yeast reproduce? - ANSWER Budding
What takes place during anaphase? - ANSWER Chromosomes move to
opposite ends of the spindle
What is DNA composed of? - ANSWER Deoxyribose, a simple sugar, nitrogen-
based, and a phosphate group
What are the products of the Krebs cycle? - ANSWER ATP, carbon dioxide,
NADH
The Krebs or citric acid cycle is the third step of what? -
ANSWER Carbohydrate catabolism, the breakdown of sugar. Before it begins,
glucose has been broken down via glycolysis into pyruvic acid
Whose efficiency of energy is greater on the energy pyramid? -
ANSWER Herbivore
What is the function of decomposition in the carbon cycle? - ANSWER To
release carbon dioxide
Which light color would be most effective for growing green plants indoors? -
ANSWER Blue
,Which bacteria are spherical in shape? - ANSWER Cocci
What is the term for the breakdown of glycogen into glucose subunits? -
ANSWER Hydrolysis, in hydrolysis, any class of compound is broken down
into subunits through the addition of water
Which organelle provides storage space for the cell? - ANSWER Vacuoles
What is a byproduct of fermentation in muscle cells? - ANSWER Lactic acid
In which phase of mitosis do new nuclear membranes form around sets of
chromosomes? - ANSWER Telophase, the phase in which the spindle dissolves
and new membranes and nucleoli form, leading to two new cells
Which names a final step in protein synthesis? - ANSWER Amino acid bonds
What are the steps of protein synthesis? - ANSWER Coded info from DNA is
translated into a finished protein. First, DNA unzips and RNA nucleotides bind
with bases on each unzipped segment, forming messenger RNA. Then, messenger
RNA leaves the nucleus and attaches to a ribosome in the cytoplasm. Transfer
RNA moves into position along messenger RNA, and the amino acids attached to
the transfer RNA molecules bind, forming the protein.
Foods with high salt content do not have to be refrigerated. What natural process
prevents these foods from spoiling? - ANSWER Osmosis
, What is necessary for active transport through a membrane to take place? -
ANSWER ATP
What are enzymes made from? - ANSWER Proteins
What is an example of a gymnosperm? - ANSWER Red cedar
What is a symbiotic relationship in which one organism benefits and the other is
not affected? - ANSWER Commensalism
Dogs are part of a larger animal group, the Carnivora. What classification is this? -
ANSWER Order
What are saturated fats saturated with? - ANSWER Hydrogen atoms, all
carbons are attached to two hydrogen atoms
What is found in animal cells but not in plant cells? - ANSWER Centriole.
Vacuoles are found in plant cells but not in animal cells
Ocean waves may tear sponges into pieces, each of which may grow into a new
sponge. What is this form of reproduction called? - ANSWER Fragmentation
How many pairs of homologous chromosomes do humans have? -
ANSWER 23 pairs for a total of 46
