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Savatey [412]
3 years ago
13

Under appropriate conditions, hemoglobin dissociates into its four subunits. Isolated α subunits bind oxygen, but the O2 saturat

ion curve is hyperbolic instead of sigmoidal. In addition, its saturation curve is not affected by the presence of H+, CO2, or BPG. What do these observations indicate about the cooperativity and allosterism observed in hemoglobin?
Medicine
1 answer:
loris [4]3 years ago
3 0

Answer with Explanation:

Hemoglobin is an allosteric protein. An allosteric protein according to the MWC model, are those proteins that are characterized by molecules called oligomers and being formed by small equal subunits and allosteric proteins are chemically organized in such a way that they retain their symmetry.

In addition, these proteins can adopt several conformational states without losing symmetry.This leads us to the fact that hemoglobin being an allosteric protein also has the property called cooperativity. Cooperativity means that when PPO2 increases, the affinity of hemoglobin for oxygen increases. This is because when an oxygen molecule binds to hemoglobin, a signal is triggered that leads to other hemoglobin subunits increase their affinity to it as oxygen molecules bind together.

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KATRIN_1 [288]
White blood cells do. we need a balanced amount of white blood cells to fight off infections!
4 0
3 years ago
is an over-the-counter version of orlistat, a weight-loss medication that blocks the digestion of fat in the small intestine.
Marina86 [1]

is an over-the-counter version of orlistat, a weight-loss medication that blocks the digestion of fat in the small intestine <u>Alli is a 60-milligram, over-the-counter version of orlistat</u>

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Additionally, fat provides your body with critical fatty acids that reduce inflammation, support brain health, and more, as well as important vitamins that aid in absorption.

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6 0
2 years ago
Heritability describes the:
forsale [732]

Answer:

b. phenotypic variation of a trait in a particular population.

Explanation:

Heritability describes a statistical measure that indicates variation in phenotypes (traits present) in a particular population.

An estimate of heritability of a trait is specific to a studied population in a determined environment, and it could change over time as circumstances often change. Heritability estimates range in a scale from zero to one.

Factors leading to this will be both ambient, and genetical. The case below exemplifies envirnoment impact.See below for a clearer view:

6 0
4 years ago
Barbara is admitted to Healthwise Hospital for a procedure. This is her first visit/admission to this facility. She is assigned
weqwewe [10]

Answer:

Healthwise Hospital

This method of numbering is called __serial unit___ numbering.

Explanation:

The best way to illustrate this serial unit numbering system is to use the following example. Rafael is registered for the first time in Healthwise Hospital for a medical procedure and he receives the number HH136501.  When he comes for a follow-up a month later he is registered again under a new medical record number HH140203 while his previous medical file(s) are brought forward. This continues to happen with each new visit. This system contrasts with serial numbering.  Serial numbering involves new numbers being assigned at each visit without reference to previous files. Serial unit numbering also contrasts with unit numbering, where only one number is assigned to a patient in this hospital.

4 0
3 years ago
What purpose does the expanded synaptic knob and the ruffled motor end-plate serve?
dlinn [17]

Answer:

The correct answer will be option C- increase the surface area.

Explanation:

At the neuromuscular junctions, the axons of the motor-neurons become bulbous at terminals. These bulbous enlargements are known as the synaptic knobs. The synaptic knob is the bulbous enlargements of the axon present at the terminals. These knobs increase the volume of the axon terminals embedded with the ligand-gated channels and accumulation of neurotransmitters in vesicles.

The motor end plate is the region of the muscle fiber which is responsible for initiating the action potential in a muscle. The motor end plate becomes ruffled or shows small folds or clefts to increase the increased surface area for the neurotransmitter to act.

Thus, option C is the correct answer.

7 0
3 years ago
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