, BIO 101 Exam #1 2026 | Questions & Verified Answers | Latest
Update | Graded A+
1. Describe the role of metabolism in living organisms.
Metabolism is essential for providing energy and building blocks for
growth and repair in living organisms.
Metabolism is unrelated to the energy needs of cells.
Metabolism is primarily involved in the classification of species.
Metabolism is a process that only occurs in multicellular organisms.
2. What is the role of ninhydrin in today's experiment?
It is used to visualize the amino acids
It is used as a protein standard
It is used to linearize the amino acids
It is used to dissolve the amino acids
3. Resolving power is the ability of the microscope to:
see two close objects as separate
keep objects in focus
magnify an image
estimate cell size
4. Describe how the pH scale indicates whether a solution is acidic or basic.
The pH scale measures the concentration of glucose in a solution.
The pH scale is only relevant for biological systems.
, The pH scale indicates the temperature of a solution.
The pH scale ranges from 0 to 14, with values below 7 indicating
acidity and values above 7 indicating basicity.
5. What is the 'pH' scale?
It measures the strength of an acid.
It is the hydrogen ion concentration.
It measures the strength of a base.
All of the above.
6. Describe the role of steroids in cell membranes and how their structure
contributes to this function.
Steroids provide energy for cellular processes.
Steroids help maintain membrane fluidity and stability due to their
hydrophobic nature and ring structure.
Steroids act as channels for ion transport across the membrane.
Steroids are responsible for the synthesis of proteins in the membrane.
7. If a plant is unable to synthesize starch due to a genetic mutation, what
impact might this have on its overall health and growth?
The plant will have enhanced photosynthetic efficiency.
The plant will grow faster due to increased sugar availability.
The plant may struggle to store energy, leading to stunted growth
and poor health.
The plant will develop stronger cell walls.
, 8. Describe how an electron microscope differs from a light microscope in
terms of its function and application.
An electron microscope can only be used for living specimens, unlike
a light microscope.
An electron microscope is primarily used for measuring the
temperature of samples.
An electron microscope uses visible light to magnify objects, similar to
a light microscope.
An electron microscope uses electron beams to achieve higher
magnification and resolution, allowing for the visualization of
smaller structures than a light microscope.
9. What are the biological functions of proteins?
catalysis
signal transduction
cell motility
cell structure
all of the above
10. In a scenario where a cell is deprived of nutrients, which type of metabolic
reaction would be primarily utilized to generate energy?
Photosynthetic reactions
Catabolic reactions
Anabolic reactions
Fermentation reactions
Update | Graded A+
1. Describe the role of metabolism in living organisms.
Metabolism is essential for providing energy and building blocks for
growth and repair in living organisms.
Metabolism is unrelated to the energy needs of cells.
Metabolism is primarily involved in the classification of species.
Metabolism is a process that only occurs in multicellular organisms.
2. What is the role of ninhydrin in today's experiment?
It is used to visualize the amino acids
It is used as a protein standard
It is used to linearize the amino acids
It is used to dissolve the amino acids
3. Resolving power is the ability of the microscope to:
see two close objects as separate
keep objects in focus
magnify an image
estimate cell size
4. Describe how the pH scale indicates whether a solution is acidic or basic.
The pH scale measures the concentration of glucose in a solution.
The pH scale is only relevant for biological systems.
, The pH scale indicates the temperature of a solution.
The pH scale ranges from 0 to 14, with values below 7 indicating
acidity and values above 7 indicating basicity.
5. What is the 'pH' scale?
It measures the strength of an acid.
It is the hydrogen ion concentration.
It measures the strength of a base.
All of the above.
6. Describe the role of steroids in cell membranes and how their structure
contributes to this function.
Steroids provide energy for cellular processes.
Steroids help maintain membrane fluidity and stability due to their
hydrophobic nature and ring structure.
Steroids act as channels for ion transport across the membrane.
Steroids are responsible for the synthesis of proteins in the membrane.
7. If a plant is unable to synthesize starch due to a genetic mutation, what
impact might this have on its overall health and growth?
The plant will have enhanced photosynthetic efficiency.
The plant will grow faster due to increased sugar availability.
The plant may struggle to store energy, leading to stunted growth
and poor health.
The plant will develop stronger cell walls.
, 8. Describe how an electron microscope differs from a light microscope in
terms of its function and application.
An electron microscope can only be used for living specimens, unlike
a light microscope.
An electron microscope is primarily used for measuring the
temperature of samples.
An electron microscope uses visible light to magnify objects, similar to
a light microscope.
An electron microscope uses electron beams to achieve higher
magnification and resolution, allowing for the visualization of
smaller structures than a light microscope.
9. What are the biological functions of proteins?
catalysis
signal transduction
cell motility
cell structure
all of the above
10. In a scenario where a cell is deprived of nutrients, which type of metabolic
reaction would be primarily utilized to generate energy?
Photosynthetic reactions
Catabolic reactions
Anabolic reactions
Fermentation reactions
