NVCC BIO 101 NVCC Lab Exam
Questions and Verified Detailed Answers
| Graded A+
Which of the following best describes a controlled variable? - ✔✔something
present in the environment in which the experiment was conducted that was
equally present for both the experimental and control groups
What was the independent variable that was the main difference between the
control group and the experimental group(s) in the heart rate recovery after
exercise experiment? - ✔✔which type of exercise was performed (either a form
of exercise or resting)*
What is the definition of the term: hypothesis? - ✔✔A hypothesis is an educated
guess as to what happen in the experiment. It is meant to be tested and proved
or disproved.
What is the purpose of a control group in an experiment? - ✔✔The purpose of a
control group is to measure it with other experimental group to see what has
changed in the experimental group.
1|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, Based on the Lab Safety Video, which of the following are not allowed (and/or
should not be used) in an in-person laboratory due to safety requirements?
(select all that apply) - ✔✔Cell phones, Food, Drinks
Biuret Reagent is used to detect the presence of which types of organic
molecule in a liquid solution? - ✔✔proteins
Benedict's Reagent is used to detect the presence of which types of organic
molecule in a liquid solution? - ✔✔carbohydrates
When Iodine is added to a solution that contains starch, what is the color of the
combined solution (what color indicates the presence of starch in a solution
when using an Iodine test)? - ✔✔dark blue / black
Which of the following organic molecules are present in nuts (almonds)
according to the online laboratory tutorial/experiment? (select all that apply -
✔✔proteins, fats
Proteins are made from monomers that are called: - ✔✔amino acids
Which of these choices indicates what happens when a plant cell is placed into a
hypertonic solution? - ✔✔plasmolysis
Which of these domains contain prokaryotic organisms? (Select all that apply) -
✔✔Eukarya, Archaea
2|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
Questions and Verified Detailed Answers
| Graded A+
Which of the following best describes a controlled variable? - ✔✔something
present in the environment in which the experiment was conducted that was
equally present for both the experimental and control groups
What was the independent variable that was the main difference between the
control group and the experimental group(s) in the heart rate recovery after
exercise experiment? - ✔✔which type of exercise was performed (either a form
of exercise or resting)*
What is the definition of the term: hypothesis? - ✔✔A hypothesis is an educated
guess as to what happen in the experiment. It is meant to be tested and proved
or disproved.
What is the purpose of a control group in an experiment? - ✔✔The purpose of a
control group is to measure it with other experimental group to see what has
changed in the experimental group.
1|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, Based on the Lab Safety Video, which of the following are not allowed (and/or
should not be used) in an in-person laboratory due to safety requirements?
(select all that apply) - ✔✔Cell phones, Food, Drinks
Biuret Reagent is used to detect the presence of which types of organic
molecule in a liquid solution? - ✔✔proteins
Benedict's Reagent is used to detect the presence of which types of organic
molecule in a liquid solution? - ✔✔carbohydrates
When Iodine is added to a solution that contains starch, what is the color of the
combined solution (what color indicates the presence of starch in a solution
when using an Iodine test)? - ✔✔dark blue / black
Which of the following organic molecules are present in nuts (almonds)
according to the online laboratory tutorial/experiment? (select all that apply -
✔✔proteins, fats
Proteins are made from monomers that are called: - ✔✔amino acids
Which of these choices indicates what happens when a plant cell is placed into a
hypertonic solution? - ✔✔plasmolysis
Which of these domains contain prokaryotic organisms? (Select all that apply) -
✔✔Eukarya, Archaea
2|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
