HESI Biology from Elsevier Review
Exam Questions with Complete Answers
Which of the following are the distinct organelles that produce cell energy? - Answer-
Mitochondrion and chloroplast
Which component of cell contributes to the protection, communication, and passage of
substances into and out of the cell? - Answer-Cell Membrane
The cell membrane consists of a bilayer of phospholipids with proteins, cholesterol, and
glycoproteins. This bilayer creates a hydrophobic region between two layers of lipids,
making it which of the following? - Answer-Selectively permeable
What are the two catabolic pathways that lead to cellular energy production? - Answer-
Fermentation and cellular respiration
What is the first step in the conversion of glucose to pyruvate? - Answer-Glycolysis
Which step in cellular respiration yields the greatest amount of ATP? - Answer-Electron
transport chain
During cell respiration, the conversion of glucose results in an overall production of how
many ATP molecules? - Answer-32-36
What is the function of water in photosynthesis? - Answer-Supply electrons in the light
reactions
Cells reproduce by different processes, all of which fall into what two catergories? -
Answer-Sexual reproduction and asexual reproduction?
Which of the following describes how a bacterium reproduces? - Answer-Binary fission
Regarding mitosis and cytokinesis, one difference between higher plants and animals is
that in plants - Answer-A cell plate begins to form at telophase whereas in animals
cleavage furrow is initatied at that stage
During which phase of cell production does the cell divide forming two separate identical
cells? - Answer-Cytokinesis
How does meiosis differ from mitosis? - Answer-In meiosis each of the daughter cells
contain half as many chromosomes as the parent.
At which phase of meiosis does crossing over occur? - Answer-Prophase I
Exam Questions with Complete Answers
Which of the following are the distinct organelles that produce cell energy? - Answer-
Mitochondrion and chloroplast
Which component of cell contributes to the protection, communication, and passage of
substances into and out of the cell? - Answer-Cell Membrane
The cell membrane consists of a bilayer of phospholipids with proteins, cholesterol, and
glycoproteins. This bilayer creates a hydrophobic region between two layers of lipids,
making it which of the following? - Answer-Selectively permeable
What are the two catabolic pathways that lead to cellular energy production? - Answer-
Fermentation and cellular respiration
What is the first step in the conversion of glucose to pyruvate? - Answer-Glycolysis
Which step in cellular respiration yields the greatest amount of ATP? - Answer-Electron
transport chain
During cell respiration, the conversion of glucose results in an overall production of how
many ATP molecules? - Answer-32-36
What is the function of water in photosynthesis? - Answer-Supply electrons in the light
reactions
Cells reproduce by different processes, all of which fall into what two catergories? -
Answer-Sexual reproduction and asexual reproduction?
Which of the following describes how a bacterium reproduces? - Answer-Binary fission
Regarding mitosis and cytokinesis, one difference between higher plants and animals is
that in plants - Answer-A cell plate begins to form at telophase whereas in animals
cleavage furrow is initatied at that stage
During which phase of cell production does the cell divide forming two separate identical
cells? - Answer-Cytokinesis
How does meiosis differ from mitosis? - Answer-In meiosis each of the daughter cells
contain half as many chromosomes as the parent.
At which phase of meiosis does crossing over occur? - Answer-Prophase I
