HESI A2 BIOLOGY EXAM QUESTIONS WITH THE LATEST AND
UPDATED SCORE.
1) In the hierarchic system of classification which is the least inclusive? -- Answer ✔✔
_ _ _ _ _ _ _ _ _ _ _ _ _ _
Species
2) After observing an event, you develop an explanation this is: -- Answer ✔✔
_ _ _ _ _ _ _ _ _ _ _ _ _
Hypothesis
3) A molecule of water is bonded with another molecule of water by what type of
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _
bond? -- Answer ✔✔ Hydrogen
_ _ _ _
4) Which is a benefit of the intermolecular hydrogen bonding of water: -- Answer ✔✔
_ _ _ _ _ _ _ _ _ _ _ _ _
1- Water has a relatively high specific heat value.
_ _ _ _ _ _ _ _ _
2- Water has strong cohesive and adhesive properties.
_ _ _ _ _ _ _
3- Polarity of water allows it to act as a versatile solvent.
_ _ _ _ _ _ _ _ _ _ _
5) Of all molecules that are significant to biology which are considered important: --
_ _ _ _ _ _ _ _ _ _ _ _ _
Answer ✔✔ nucleic acids _ _ _
6) Lipids are better known as fats but what are they specifically? -- Answer ✔✔ Fatty
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _
acids, phospholipids, steroids
_ _
7) What are the 2 categories of fatty acids? -- Answer ✔✔ saturated fats and
_ _ _ _ _ _ _ _ _ _ _ _ _ _
unsaturated fats _
8) How do phospholipids function in cells? -- Answer ✔✔ They are integral
_ _ _ _ _ _ _ _ _ _ _ _
components of plasma membrane _ _ _
9) Which of the biologic molecules are considered the most significant contributor to
_ _ _ _ _ _ _ _ _ _ _ _
cellular function? -- Answer ✔✔ Proteins
_ _ _ _ _
, 10) Proteins are polymers of which? -- Answer ✔✔ Amino Acids
_ _ _ _ _ _ _ _ _
11) Which of the following proteins catalyze different reactions or processes? --
_ _ _ _ _ _ _ _ _ _ _
Answer ✔✔ Enzyme _ _
12) Which of the biologic molecules are components of the molecules of inheritance? --
_ _ _ _ _ _ _ _ _ _ _ _
_Answer ✔✔ Nucleic Acids _ _ _
13) What is the sum of all chemical reactions that occur in an organism? -- Answer ✔✔
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_Metabolism
14) In a cell, reactions take place in a series of steps called: -- Answer ✔✔ Metabolic
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
pathways
15) What is the fundamental unit of biology? -- Answer ✔✔ Cell
_ _ _ _ _ _ _ _ _ _
16) Which type of cell contains no defined nucleus? -- Answer ✔✔ Prokaryotic cell
_ _ _ _ _ _ _ _ _ _ _ _
17) What is the primary purpose of the flagella on the surface of cells? -- Answer ✔✔
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
movement of the cell _ _ _
18) Which cell organelle functions to transport materials from the endoplasmic
_ _ _ _ _ _ _ _ _ _
reticulum throughout the cell? -- Answer ✔✔ Golgi apparatus
_ _ _ _ _ _ _ _
19) Which are the distant organelles that produce cell energy? -- Answer ✔✔
_ _ _ _ _ _ _ _ _ _ _ _
Mitochondrion and chloroplast _ _
20) Which component of the cell contributes to the protection, communication, and
_ _ _ _ _ _ _ _ _ _ _
passage of substances into and out of the cell? -- Answer ✔✔ Cell Membrane
_ _ _ _ _ _ _ _ _ _ _ _ _
21) The Cell Membrane consists of a bilayer of phospholipids which proteins,
_ _ _ _ _ _ _ _ _ _ _
cholesterol, and glycoproteins. The bilayer creates a hydrophobic region between
_ _ _ _ _ _ _ _ _ _
two layers of lipids, making it what: -- Answer ✔✔ Selectively permeable
_ _ _ _ _ _ _ _ _ _ _
UPDATED SCORE.
1) In the hierarchic system of classification which is the least inclusive? -- Answer ✔✔
_ _ _ _ _ _ _ _ _ _ _ _ _ _
Species
2) After observing an event, you develop an explanation this is: -- Answer ✔✔
_ _ _ _ _ _ _ _ _ _ _ _ _
Hypothesis
3) A molecule of water is bonded with another molecule of water by what type of
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _
bond? -- Answer ✔✔ Hydrogen
_ _ _ _
4) Which is a benefit of the intermolecular hydrogen bonding of water: -- Answer ✔✔
_ _ _ _ _ _ _ _ _ _ _ _ _
1- Water has a relatively high specific heat value.
_ _ _ _ _ _ _ _ _
2- Water has strong cohesive and adhesive properties.
_ _ _ _ _ _ _
3- Polarity of water allows it to act as a versatile solvent.
_ _ _ _ _ _ _ _ _ _ _
5) Of all molecules that are significant to biology which are considered important: --
_ _ _ _ _ _ _ _ _ _ _ _ _
Answer ✔✔ nucleic acids _ _ _
6) Lipids are better known as fats but what are they specifically? -- Answer ✔✔ Fatty
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _
acids, phospholipids, steroids
_ _
7) What are the 2 categories of fatty acids? -- Answer ✔✔ saturated fats and
_ _ _ _ _ _ _ _ _ _ _ _ _ _
unsaturated fats _
8) How do phospholipids function in cells? -- Answer ✔✔ They are integral
_ _ _ _ _ _ _ _ _ _ _ _
components of plasma membrane _ _ _
9) Which of the biologic molecules are considered the most significant contributor to
_ _ _ _ _ _ _ _ _ _ _ _
cellular function? -- Answer ✔✔ Proteins
_ _ _ _ _
, 10) Proteins are polymers of which? -- Answer ✔✔ Amino Acids
_ _ _ _ _ _ _ _ _
11) Which of the following proteins catalyze different reactions or processes? --
_ _ _ _ _ _ _ _ _ _ _
Answer ✔✔ Enzyme _ _
12) Which of the biologic molecules are components of the molecules of inheritance? --
_ _ _ _ _ _ _ _ _ _ _ _
_Answer ✔✔ Nucleic Acids _ _ _
13) What is the sum of all chemical reactions that occur in an organism? -- Answer ✔✔
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_Metabolism
14) In a cell, reactions take place in a series of steps called: -- Answer ✔✔ Metabolic
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
pathways
15) What is the fundamental unit of biology? -- Answer ✔✔ Cell
_ _ _ _ _ _ _ _ _ _
16) Which type of cell contains no defined nucleus? -- Answer ✔✔ Prokaryotic cell
_ _ _ _ _ _ _ _ _ _ _ _
17) What is the primary purpose of the flagella on the surface of cells? -- Answer ✔✔
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
movement of the cell _ _ _
18) Which cell organelle functions to transport materials from the endoplasmic
_ _ _ _ _ _ _ _ _ _
reticulum throughout the cell? -- Answer ✔✔ Golgi apparatus
_ _ _ _ _ _ _ _
19) Which are the distant organelles that produce cell energy? -- Answer ✔✔
_ _ _ _ _ _ _ _ _ _ _ _
Mitochondrion and chloroplast _ _
20) Which component of the cell contributes to the protection, communication, and
_ _ _ _ _ _ _ _ _ _ _
passage of substances into and out of the cell? -- Answer ✔✔ Cell Membrane
_ _ _ _ _ _ _ _ _ _ _ _ _
21) The Cell Membrane consists of a bilayer of phospholipids which proteins,
_ _ _ _ _ _ _ _ _ _ _
cholesterol, and glycoproteins. The bilayer creates a hydrophobic region between
_ _ _ _ _ _ _ _ _ _
two layers of lipids, making it what: -- Answer ✔✔ Selectively permeable
_ _ _ _ _ _ _ _ _ _ _
