exam4 Flashcards
What oxidative transformations is unlikely to occur?
A tertiary alcohol to a ketone
Oxidations that can occur are:
* A primary alcohol to an aldehyde
*An aldehyde to a carboxylic acid
* secondary alcohol to a ketone
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Describe each point on the diagram
- The boiling point is between Point B and Point C on the curve that separates the liquid state from the gas state.
- Point C is the critical point.
- The melting point is on the curve that separates the solid state from the liquid state.
- Point A is on the curve that separates the solid state from the gas state. Sublimation is the phase change from a solid to a gas.
The energy of the photon is inversely proportional to the___________
wavelength.
amine
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What allows small insects to walk on the free surface of water?
Surface tension
If a thin thread is placed between a screen and a bright source of light, a pattern of parallel dark and bright fringes appears on the screen. The phenomenon best explaining the formation of this pattern is:
diffraction.
saturated fatty acid is the most soluble in water when____________
The fatty acid that is the most soluble in water will have the shortest alkyl chain.
As blood passes through actively contracting skeletal muscle tissue, the affinity of hemoglobin for oxygen in the muscle tissue:
decreases as a result of a decrease in plasma pH.
Affinity would decrease with a decrease in plasma pH, and during prolonged exercise, anaerobic respiration would decrease the plasma pH.
A researcher measures the concentration of CO2(aq) in a solution at equilibrium. Which additional quantity must be measured in order to calculate the Henry’s Law constant kH for the gas?
Partial pressure of the gas
The Henry’s Law constant kH relates the solubility of a gas S to the pressure of that gas Pg above the solution and is written as S = kH*Pg. Therefore, in addition to the concentration of CO2(aq) in a solution at equilibrium, the partial pressure of the gas Pg must be measured.
How many nucleotides code for one AA?
3
A woman with cystic fibrosis considers having children with an asymptomatic man who is heterozygous for the cystic fibrosis allele. What is probability of having a child with cystic fibrosis?
50%
A heterozygous genotype that results in an asymptomatic phenotype implies that the disorder is due to a recessive allele. Therefore, a homozygous individual and a heterozygous individual have 50% probability of having a child with the disorder.
what best applies to the inactive X chromosome in mammalian females?
It is one of the last chromosomes to replicate.
The inactivate X chromosome is one of the last chromosomes to replicate.
The presence of which type of intercellular connections between endothelial cells of brain capillaries results in the blood–brain barrier?
Tight junctions
Tight junctions are intercellular junctions that prevent the movement of solutes within the space between adjacent cells. In blood capillaries, neighboring endothelial cells form tight junctions with one another to restrict the diffusion of harmful substances and large molecules into the interstitial fluid surrounding the brain.
