BIO 1100 Exam 2 Practice Questions and Correct Answers
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Course
ECU BIO 1100
Institution
ECU BIO 1100
High solute concentration in extracellular fluid hypertonic
Equal solute concentration inside and outside the cell Isotonic
Low solute concentration in the extracellular fluid Hypotonic
When an electrochemical gradient is established and then provides the energy necessary to move a substance; we...
BIO 1100 Exam 2 Practice Questions and
Correct Answers
High solute concentration in extracellular fluid ✅hypertonic
Equal solute concentration inside and outside the cell ✅Isotonic
Low solute concentration in the extracellular fluid ✅Hypotonic
When an electrochemical gradient is established and then provides the energy
necessary to move a substance; we call this _____________ active transport.
✅secondary
What part of the phospholipid bilayer creates the physical barrier for movement into or
out of the cell? ✅fatty acid tails
The plasma membrane is _____________, which means it allows some molecules to
pass through but not others. ✅Selectively permeable
What BEST describes osmosis? ✅Facilitated diffusion
Which phosphate bond has the highest energy in the ATP molecule? ✅gamma
The study of energy flow through a living system is known as ✅bioenergetics
Energy is released in a chemical reaction ✅exergonic
Energy specifically required to make the reaction occur ✅endergonic
Energy required for a reaction to proceed ✅activation energy
Energy available to do work ✅Gibb's free energy
All chemical reactions in a cell ✅metabolism
Reactions that break down molecules ✅catabolism
Reactions that build up molecules ✅anabolism
How do enzymes lower activation energy? ✅molecular environment and substrate
orientation are optimized
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