UA BSC-108 Exam-2 Questions and
Verified Correct Answers | Graded A+
What do all living organisms need to sustain life? - ✔✔Nutrients, water, and
energy
What is energy? - ✔✔The capacity to do work
What are the different types of energy? - ✔✔Kinetic, potential, thermal,
chemical, and more
How do we measure energy? Why? - ✔✔Joules or calories, to quantify energy
changes
What is the study of energy? - ✔✔Thermodynamics
What is a calorie? - ✔✔A unit of energy
What is a Calorie? (there is a difference between this one and the one above.) -
✔✔A kilocalorie, or 1000 small calories
What is the First Law of Thermodynamics? Know it and what it means. -
✔✔Energy cannot be created or destroyed, only transferred or changed in form
Why is heat lost in biological systems? - ✔✔Because no process is perfectly
efficient
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©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, Where does new energy come from? How is most energy lost (in what form)? -
✔✔The sun; lost as heat
What is the Second Law of Thermodynamics? Know it and what it means. -
✔✔Entropy of an isolated system always increases
What is entropy? - ✔✔Measure of disorder
How do you make a reaction go that requires energy? - ✔✔Provide energy (like
ATP)
What is activation energy? - ✔✔The energy needed to start a reaction
What is an enzyme and how do they work? - ✔✔Biological catalysts that speed
up reactions by lowering activation energy
What factors affect how well enzymes work? - ✔✔Temperature, pH, substrate
concentration
How does an enzyme inhibitor work? - ✔✔Binds to enzyme and reduces its
activity
What is ATP and what is it used for? - ✔✔Energy currency of the cell
How do you get energy from ATP? - ✔✔By breaking its high-energy phosphate
bonds
2|Page
©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
Verified Correct Answers | Graded A+
What do all living organisms need to sustain life? - ✔✔Nutrients, water, and
energy
What is energy? - ✔✔The capacity to do work
What are the different types of energy? - ✔✔Kinetic, potential, thermal,
chemical, and more
How do we measure energy? Why? - ✔✔Joules or calories, to quantify energy
changes
What is the study of energy? - ✔✔Thermodynamics
What is a calorie? - ✔✔A unit of energy
What is a Calorie? (there is a difference between this one and the one above.) -
✔✔A kilocalorie, or 1000 small calories
What is the First Law of Thermodynamics? Know it and what it means. -
✔✔Energy cannot be created or destroyed, only transferred or changed in form
Why is heat lost in biological systems? - ✔✔Because no process is perfectly
efficient
1|Page
©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, Where does new energy come from? How is most energy lost (in what form)? -
✔✔The sun; lost as heat
What is the Second Law of Thermodynamics? Know it and what it means. -
✔✔Entropy of an isolated system always increases
What is entropy? - ✔✔Measure of disorder
How do you make a reaction go that requires energy? - ✔✔Provide energy (like
ATP)
What is activation energy? - ✔✔The energy needed to start a reaction
What is an enzyme and how do they work? - ✔✔Biological catalysts that speed
up reactions by lowering activation energy
What factors affect how well enzymes work? - ✔✔Temperature, pH, substrate
concentration
How does an enzyme inhibitor work? - ✔✔Binds to enzyme and reduces its
activity
What is ATP and what is it used for? - ✔✔Energy currency of the cell
How do you get energy from ATP? - ✔✔By breaking its high-energy phosphate
bonds
2|Page
©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
