Rio Bio 156 Exam 1 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: differences in solute concentration.
Answer:
The movement of water across membranes
water will move across the membrane from the hypotonic fluid into the hyper- tonic
one
Q: Define the terms: isotonic, hypotonic and hypertonic.
Answer:
isotonic: the same overall solute
concentration. I
hypotonic: the fluid with the lower concentration of solutes
hypertonic: with the higher solute concentration
,Rio Bio 156 Exam 1 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Sketch and describe the concept of facilitated diffusion.
Answer:
Passive transport mechanism in
which a solute follows its concentration gradient across a membrane by moving
through a
transport protein.
Q: Distinguish between exocytosis and endocytosis.
Answer:
endocytosis: Process by which a cell takes
in a small amount of extracellular fluid (and its contents) by the ballooning inward of
the
plasma membrane.
exocytosis: Process by which a cell expels a vesicle's contents to extracellular fluid.
,Rio Bio 156 Exam 1 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Describe an amoeba feeding by phagocytosis.
Answer:
a type of receptor-mediated endocytosis in
which motile cells engulf microorganisms, cellular debris, or other large particles.
Q: Describe the basic events of glycolysis.
Answer:
a series of reactions beginning with the breakdown
of a glucose molecule to pyruvate. A small amount (two molecules) of ATP is
produced directly
at this time. Electrons are carried to the electron transport chain by NADH, a special
coenzyme
electron carrier. Glycolysis takes place in the cytoplasm of the cell.
, Rio Bio 156 Exam 1 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Describe the basic events of Krebs Cycle
Answer:
The Krebs cycle, or Citric Acid Cycle, is the name
given to the set of reactions in which pyruvate is broken down by enzymes to carbon
dioxide.
Again, a small amount of ATP (two molecules) is made directly during these events.
Once again,
electrons are carried to the electron transport chain by NAD+. Another electron
carrier, FAD, is
Q: also active here. The Krebs cycle takes place in the matrix of the mitochondria -
the area
Answer:
outside of the cristae.
Q: aerobic
Answer:
Involving or occurring in the presence of oxygen.
Latest 2026 Update
Q: differences in solute concentration.
Answer:
The movement of water across membranes
water will move across the membrane from the hypotonic fluid into the hyper- tonic
one
Q: Define the terms: isotonic, hypotonic and hypertonic.
Answer:
isotonic: the same overall solute
concentration. I
hypotonic: the fluid with the lower concentration of solutes
hypertonic: with the higher solute concentration
,Rio Bio 156 Exam 1 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Sketch and describe the concept of facilitated diffusion.
Answer:
Passive transport mechanism in
which a solute follows its concentration gradient across a membrane by moving
through a
transport protein.
Q: Distinguish between exocytosis and endocytosis.
Answer:
endocytosis: Process by which a cell takes
in a small amount of extracellular fluid (and its contents) by the ballooning inward of
the
plasma membrane.
exocytosis: Process by which a cell expels a vesicle's contents to extracellular fluid.
,Rio Bio 156 Exam 1 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Describe an amoeba feeding by phagocytosis.
Answer:
a type of receptor-mediated endocytosis in
which motile cells engulf microorganisms, cellular debris, or other large particles.
Q: Describe the basic events of glycolysis.
Answer:
a series of reactions beginning with the breakdown
of a glucose molecule to pyruvate. A small amount (two molecules) of ATP is
produced directly
at this time. Electrons are carried to the electron transport chain by NADH, a special
coenzyme
electron carrier. Glycolysis takes place in the cytoplasm of the cell.
, Rio Bio 156 Exam 1 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Describe the basic events of Krebs Cycle
Answer:
The Krebs cycle, or Citric Acid Cycle, is the name
given to the set of reactions in which pyruvate is broken down by enzymes to carbon
dioxide.
Again, a small amount of ATP (two molecules) is made directly during these events.
Once again,
electrons are carried to the electron transport chain by NAD+. Another electron
carrier, FAD, is
Q: also active here. The Krebs cycle takes place in the matrix of the mitochondria -
the area
Answer:
outside of the cristae.
Q: aerobic
Answer:
Involving or occurring in the presence of oxygen.
