BIO 140 Final Exam 2025/2026 Exam
Questions and Correct Answers | New
Update
Which of the following results from an unequal sharing of electrons
between atoms? - 🧠ANSWER ✔✔a polar covalent bond
Humans produce sweat as a cooling mechanism to maintain a stable
internal temperature. Which of the following best explains how the
properties of water contribute to this physiological process? - 🧠ANSWER
✔✔The high heat of vaporization of water allows the body to remove
excess heat through a phase change of water from liquid to gas
,Which of the following effects is produced by the high surface tension of
water? - 🧠ANSWER ✔✔a water strider can walk across the surface of a
small pond
The process of science involves testing which of the following? -
🧠ANSWER ✔✔a hypothesis
The molecular structures of linoleic acid and palmitic acid, two naturally
occurring substances, are shown in the figure. Based on the molecular
structures shown in the figure, which molecule is likely to be solid at room
temperature? - 🧠ANSWER ✔✔Palmitic acid, because the absence of
carbon-carbon double bonds allows the molecules to pack closely together.
Which of the following is a correct monomer/polymer pairing? - 🧠ANSWER
✔✔amino acid/polypeptide
Which of the following best summarizes the relationship between
dehydration reactions and hydrolysis? - 🧠ANSWER ✔✔Dehydration
reactions assemble polymers, and hydrolysis reactions break down
polymers.
Which bonds are created during the formation of the primary structure of a
protein? - 🧠ANSWER ✔✔peptide bonds
,The α helix and β pleated sheet are examples of which level of protein
structure? - 🧠ANSWER ✔✔secondary
A nucleotide is composed of - 🧠ANSWER ✔✔a nitrogenous base, a
phosphate group, a pentose sugar, and an amino acid.
You are conducting a test to determine the effects of different colored lights
on starch production in potatoes. You have decided to use yellow, green,
red, and blue, and white light and measure the total mass of starch
produced at the end of 2 weeks. What would your dependent variable be in
this experiment? - 🧠ANSWER ✔✔mass of starch produced
Which of the following best describes the hydrolysis of carbohydrates? -
🧠ANSWER ✔✔The addition of a water molecule breaks a covalent bond
between sugar monomers.
Which of the following is a complex carbohydrate commonly used as long-
term energy storage in the liver of mammals? - 🧠ANSWER ✔✔glycogen
The carbohydrates glucose, galactose, and fructose have the same
chemical formula but different structural formulas, as represented in the
figure. Which of the following statements about glucose, galactose, and
fructose is most likely true? - 🧠ANSWER ✔✔The carbohydrates have
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, different properties because they have different arrangements of carbon,
hydrogen, and oxygen atoms.
What results from an equal sharing of electron between atoms? -
🧠ANSWER ✔✔a non polar covalent bond
Which of the following would be considered an organic molecule? -
🧠ANSWER ✔✔C6H12O6
You are conducting an experiment to determine which type of carbohydrate
provides the best growing conditions for bacteria. You set up 5 growth
plates of bacteria. 4 plates each have a different type of sugar, while the
5th plate has no sugar. What is the purpose of the 5th plate in this
experiment? - 🧠ANSWER ✔✔This plate serves as a control plate to
compare growth with the sugar plates
You are conducting an experiment to determine the effect of music on the
anxiety level of mice. You have 4 enclosures which contain speakers to
deliver 3 different types of music to the mice. The 4thenclosure contains no
speakers. After 2 hours in their chamber, a simple blood test is performed
to determine the level of cortisol in the blood of each mouse (a measure of
stress hormone). What is the independent variable in this experiment? -
🧠ANSWER ✔✔type of music
Questions and Correct Answers | New
Update
Which of the following results from an unequal sharing of electrons
between atoms? - 🧠ANSWER ✔✔a polar covalent bond
Humans produce sweat as a cooling mechanism to maintain a stable
internal temperature. Which of the following best explains how the
properties of water contribute to this physiological process? - 🧠ANSWER
✔✔The high heat of vaporization of water allows the body to remove
excess heat through a phase change of water from liquid to gas
,Which of the following effects is produced by the high surface tension of
water? - 🧠ANSWER ✔✔a water strider can walk across the surface of a
small pond
The process of science involves testing which of the following? -
🧠ANSWER ✔✔a hypothesis
The molecular structures of linoleic acid and palmitic acid, two naturally
occurring substances, are shown in the figure. Based on the molecular
structures shown in the figure, which molecule is likely to be solid at room
temperature? - 🧠ANSWER ✔✔Palmitic acid, because the absence of
carbon-carbon double bonds allows the molecules to pack closely together.
Which of the following is a correct monomer/polymer pairing? - 🧠ANSWER
✔✔amino acid/polypeptide
Which of the following best summarizes the relationship between
dehydration reactions and hydrolysis? - 🧠ANSWER ✔✔Dehydration
reactions assemble polymers, and hydrolysis reactions break down
polymers.
Which bonds are created during the formation of the primary structure of a
protein? - 🧠ANSWER ✔✔peptide bonds
,The α helix and β pleated sheet are examples of which level of protein
structure? - 🧠ANSWER ✔✔secondary
A nucleotide is composed of - 🧠ANSWER ✔✔a nitrogenous base, a
phosphate group, a pentose sugar, and an amino acid.
You are conducting a test to determine the effects of different colored lights
on starch production in potatoes. You have decided to use yellow, green,
red, and blue, and white light and measure the total mass of starch
produced at the end of 2 weeks. What would your dependent variable be in
this experiment? - 🧠ANSWER ✔✔mass of starch produced
Which of the following best describes the hydrolysis of carbohydrates? -
🧠ANSWER ✔✔The addition of a water molecule breaks a covalent bond
between sugar monomers.
Which of the following is a complex carbohydrate commonly used as long-
term energy storage in the liver of mammals? - 🧠ANSWER ✔✔glycogen
The carbohydrates glucose, galactose, and fructose have the same
chemical formula but different structural formulas, as represented in the
figure. Which of the following statements about glucose, galactose, and
fructose is most likely true? - 🧠ANSWER ✔✔The carbohydrates have
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, different properties because they have different arrangements of carbon,
hydrogen, and oxygen atoms.
What results from an equal sharing of electron between atoms? -
🧠ANSWER ✔✔a non polar covalent bond
Which of the following would be considered an organic molecule? -
🧠ANSWER ✔✔C6H12O6
You are conducting an experiment to determine which type of carbohydrate
provides the best growing conditions for bacteria. You set up 5 growth
plates of bacteria. 4 plates each have a different type of sugar, while the
5th plate has no sugar. What is the purpose of the 5th plate in this
experiment? - 🧠ANSWER ✔✔This plate serves as a control plate to
compare growth with the sugar plates
You are conducting an experiment to determine the effect of music on the
anxiety level of mice. You have 4 enclosures which contain speakers to
deliver 3 different types of music to the mice. The 4thenclosure contains no
speakers. After 2 hours in their chamber, a simple blood test is performed
to determine the level of cortisol in the blood of each mouse (a measure of
stress hormone). What is the independent variable in this experiment? -
🧠ANSWER ✔✔type of music
