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olya-2409 [2.1K]
3 years ago
5

Oxygen must dissolve into fluid lining alveoli prior to diffusing into our pulmonary capillaries but we cannot breathe water. Ex

plain why we are not able to survive by allowing our lungs to fill with water and breathing underwater. In your answer for this question, consider multiple differences in the respiratory fluids (water and air).
Biology
1 answer:
tamaranim1 [39]3 years ago
6 0

Answer:

The strong hydrogen bonds   in water made water stable and difficult to breakdown into constituent  oxygen and hydrogen atoms.  at a temprature less than 100 degree..

Oxygen is a strong electronegative atom than  the two hydrogen atoms it is attached to in  water. It  pulls more electrons to itself than the hydrogen atoms.. This strengthened  hydrogen bonds in water .

Consequently, it will be difficult for the needed oxygen atoms to simply diffuse into the alveoli to reach the blood,Compare to its  molecular form  where its atoms awere held  by relatively week covalent bonds.

Besides the porosity    of the thin  alveolar endothelial   walls of 0.2 micrometer is   too small for the larger water molecules to pass through.

Explanation:

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1. You and your classmate are discussing different organs and organ systems within the human body.
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3 years ago
Mary marries an unaffected man, justin, whose paternal uncle has galactosemia. determine the genotypes for justin's family.
vitfil [10]
1. Galactosemia is a disease that will only be expressed when a person is<span><span><span> homozygotic recessive for that trait. It's the same as saying it </span> has</span> 2 recessive alleles.

Dominant allele-</span><span> G
recessive allele- g
</span>
Homozygotic dominant:  GG <span><span>(doesn't express the disease)
</span>Heterozygotic : Gg (doesn't express the disease)
Homozygotic recessive: gg (expresses it)</span>

2.
-Mary has this genotype: G_ . This means it can be GG or Gg
-The exercise already says that justin's mother is GG (<span>Homozygotic dominant)
</span>- If his mother is GG, one of these G's is going to be passed to Justin. So, his genotype is either GG or Gg. Since we are not sure we write as: G_.
Justin's genotype: G_

3.
-
Justin's uncle has galactosemia so his genotype is: gg

-
If the uncle was able to receive two recessive alleles it means the mother had one to pass, and so did the father. However, in the diagram, it's not pointed out that they have a disease so it only leaves one possible genotype: Gg. Justin's grandparents are both Gg.

4. The last person to analyze is Justin's father.
If we crossed the grandparents (Gg x Gg) we could obtain these genotypes: GG, Gg, gg.
Justin's father doesn't express the trait, so it's not gg. That leaves us with either GG or Gg. Since we can't know for sure, onece again we write as G_
Justin's father: G_
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3 years ago
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In Shift translocation, the broken segment of one chromosome gets inserted interstitially in a non-homologous chromosome.

Segment from one chromosome is exchanged with a segment from another non-homologous chromosome simultaneously in Reciprocal translocation.

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