Lecture 3 - IB 150 energetic limits on anatomy Questions
With Complete Solutions
A Correct Answers area of gas exchange
Aerobic (O₂ present) Correct Answers cellular respiration
→ complete oxidation
→ waste products: H₂O and CO₂
→ net energy trapped per glucose: 32 ATP
Aerobic Cellular Respiration Equation Correct Answers
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O
(know this)
∙ exergonic reaction
∙ 36 ADP + 36 Pi → 36 ATP
∙ ∆G = -2870 kJ/mol
∆G = +992 kJ/mol
-------------------
∆Gtotal = -1878 kJ/mol
Anaerobic (O₂ absent) Correct Answers fermentation
→ incomplete oxidation
→ waste products: lactic acid or ethanol + CO₂
→ net energy trapped per glucose: 2 ATP
As body size increases... Correct Answers SA increases and
volume increases, but volume increases even faster than SA
As L gets bigger, Q... Correct Answers decreases
ATP has a low ... Correct Answers activation energy
, ATP powers protein motors or.... Correct Answers powering
muscle contractions
Can we just change another variable, such as the concentration
gradient of oxygen from the environment to inside the organism,
to make up for this larger L in a big organism, so that the
diffusion rate (Q) suffices? Correct Answers The organism is
stuck with whatever oxygen concentration happens to be in the
environment.
D Correct Answers diffusion coefficient (depends on
permeability of medium for a given substance and temp)
Endergonic reaction Correct Answers → requires energy
→ active transport
→ anabolism
Equilibrium (part 1) Correct Answers Equilibrium is
established. Solutes continue to move back and forth across the
membrane but at equal rates.
Equilibrium (part 2) Correct Answers Diffusion continues until
the concentrations on both sides of this semi-permeable
membrane have become equal. Remember that the likelihood of
a randomly moving molecule from one side to the other is
related to the concentration - the higher the concentration, the
higher the likelihood a randomly moving molecule will hit the
membrane and bounce to the other side.
With Complete Solutions
A Correct Answers area of gas exchange
Aerobic (O₂ present) Correct Answers cellular respiration
→ complete oxidation
→ waste products: H₂O and CO₂
→ net energy trapped per glucose: 32 ATP
Aerobic Cellular Respiration Equation Correct Answers
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O
(know this)
∙ exergonic reaction
∙ 36 ADP + 36 Pi → 36 ATP
∙ ∆G = -2870 kJ/mol
∆G = +992 kJ/mol
-------------------
∆Gtotal = -1878 kJ/mol
Anaerobic (O₂ absent) Correct Answers fermentation
→ incomplete oxidation
→ waste products: lactic acid or ethanol + CO₂
→ net energy trapped per glucose: 2 ATP
As body size increases... Correct Answers SA increases and
volume increases, but volume increases even faster than SA
As L gets bigger, Q... Correct Answers decreases
ATP has a low ... Correct Answers activation energy
, ATP powers protein motors or.... Correct Answers powering
muscle contractions
Can we just change another variable, such as the concentration
gradient of oxygen from the environment to inside the organism,
to make up for this larger L in a big organism, so that the
diffusion rate (Q) suffices? Correct Answers The organism is
stuck with whatever oxygen concentration happens to be in the
environment.
D Correct Answers diffusion coefficient (depends on
permeability of medium for a given substance and temp)
Endergonic reaction Correct Answers → requires energy
→ active transport
→ anabolism
Equilibrium (part 1) Correct Answers Equilibrium is
established. Solutes continue to move back and forth across the
membrane but at equal rates.
Equilibrium (part 2) Correct Answers Diffusion continues until
the concentrations on both sides of this semi-permeable
membrane have become equal. Remember that the likelihood of
a randomly moving molecule from one side to the other is
related to the concentration - the higher the concentration, the
higher the likelihood a randomly moving molecule will hit the
membrane and bounce to the other side.
