Test Transporte

Question 1 of 17

1

Which conditions for viscosity and % of occlusion are required for increasing the volumetric flow rate during peristalsis in intestine?

Select one of the following:

Low viscosity and low % of occlusion
High viscosity and high % of occlusion
Low viscosity and high % of occlusion
High viscosity and low % of occlusion

Explanation

Question 2 of 17

1

What are the types of axonal transport in the nervous system?

Select one of the following:

Long and short axonal transport
Slow (bidirectional) and fast (unidirectional) axonal transport.
Fast(bidirectional) and slow(unidirectional) axonal transport.
Chemical and electrical axonal transport

Explanation

Question 3 of 17

1

Why is fetal hemoglobin different to adult hemoglobin?

Select one of the following:

Maternal blood in placenta has more o2 so fetal hemoglobin has higher affinity
Maternal blood in placenta has less o2 so fetal hemoglobin has lower affinity
Maternal blood in placenta has less o2 so fetal hemoglobin has higher affinity
Maternal blood in placenta has more o2 so fetal hemoglobin has lower
affinity

Explanation

Question 4 of 17

1

Concerning a daughter vessel sufficiently small for not being considered important for perturbation of the flow in a bifurcation, which is the branching angle expected for the vessel with respect to the parent vessel?

Select one of the following:

45º50º
<20º
70º-90º
Cannot be determined

Explanation

Question 5 of 17

1

What happens in the carotid bifurcation when the crosssection increases in the outgrowth ?

Select one or more of the following:

Part if the flow goes through external carotid and some enters temporaly external carothid where the outgrowth is located and return before entering the internal carotid.
A positive pressure gradient is created.
The flow is divided in two and depending on the particles position they enter internal or external carotid

Explanation

Question 6 of 17

1

Which are the conditions for the lipidmediated transport to occur?

Select one of the following:

Low molecular weight and hydrophilicity.
Low molecular weight and high lipophilicity or lipid solubility.
Lipophilicity and high number of hydrogens bonds.
Low molecular weight and presence of specific carriers.

Explanation

Question 7 of 17

1

Which mechanisms allow a correct oxygen supply to the embryo?

Select one or more of the following:

Higher affinity and higher concentration of fetal hemoglobin
Bohr effect
Uterus contractions

Explanation

Question 8 of 17

1

Choose the correct answer

Select one of the following:

Viscosity is always inversely proportional to vessel diameter.
Pressure is higher in capillaries than in arteries.
When a blood vessel divides in two equal branches, both form the same angle with the original.
Blood flow is directly proportional to radius square.

Explanation

Question 9 of 17

1

Why is the zebra fish ideal for research projects?

Select one or more of the following:

Because it's cheaper than mice
Because we know its genome
Because its life cycle is short

Explanation

Question 10 of 17

1

Which ion causes the depolarization phase and which ion causes the repolarization phase?

Select one of the following:

Na+ causes the depolarization and K+ the repolarization
K+ causes the depolarization Na+ causes the repolarization

Explanation

Question 11 of 17

1

What are the differences between diffusion and facilitated diffusion?

Select one of the following:

Facilitated diffusion decreases the rate of diffusion and their carriers can be saturated
Facilitated diffusion is an active transport in which carriers can not be saturated whereas diffusion is a passive transport
In diffusion the molecules pass directly and the rate of diffusion is linear with concentration whereas facilitated diffusion carriers increase the rate of diffusion
The rate of diffusion in facilitated diffusion is linear with the concentration

Explanation

Question 12 of 17

1

Which are the main physical mechanisms used by the dialyzer membrane when filtering solute from blood?

Select one of the following:

Only diffusion.
Diffusion, convection and adsorption.
Osmosis and hydrostatic pressure.
None of the above

Explanation

Question 13 of 17

1

Why is inflammation dangerous for the blood brain barrier?

Select one of the following:

Because it prevents passage of substances.
Because it may provoke a myocardial infarction.
Because it provokes apparition of gaps and harmful substances may leak.
Because it increases blood flow rate.

Explanation

Question 14 of 17

1

What is the most important factor that determines how much O2 binds to hemoglobin?

Select one of the following:

Acidity
P(O2)
P(CO2)
BPG

Explanation

Question 15 of 17

1

What kind of transport requires Energy in the form of ATP to function properly?

Select one of the following:

Diffusion
Passive Transport
Active transport

Explanation

Question 16 of 17

1

Which transport mechanism in the blood brain barrier is triggered by an electrostatic interaction between a positively charged substance and a negatively charged plasma membrane surface?

Select one of the following:

Carrier-mediated efflux
Bulk-phase endocytosis
Receptor-mediated endocytosis
Absorptive-mediated transport

Explanation

Question 17 of 17

1

How does the O2 pressure in the blood flow of an interstitial fluid vary when doing exercise respect to the normal state?

Select one of the following:

The O2 pressure will be lower than in the normal state.
The O2 pressure will be higher than in the normal state.
The O2 pressure variation will not be significant respecting the normal state.

	Created by Sara Ruiz López- almost 9 years ago

test presentaciones transporte final

Test Transporte

Question 1 of 17

Which conditions for viscosity and % of occlusion are required for increasing the volumetric flow rate during peristalsis in intestine?

Select one of the following:

Explanation

Question 2 of 17

What are the types of axonal transport in the nervous system?

Select one of the following:

Explanation

Question 3 of 17

Why is fetal hemoglobin different to adult hemoglobin?

Select one of the following:

Explanation

Question 4 of 17

Concerning a daughter vessel sufficiently small for not being considered important for perturbation of the flow in a bifurcation, which is the branching angle expected for the vessel with respect to the parent vessel?

Select one of the following:

Explanation

Question 5 of 17

What happens in the carotid bifurcation when the cross­section increases in the outgrowth ?

Select one or more of the following:

Explanation

Question 6 of 17

Which are the conditions for the lipid­mediated transport to occur?

Select one of the following:

Explanation

Question 7 of 17

Which mechanisms allow a correct oxygen supply to the embryo?

Select one or more of the following:

Explanation

Question 8 of 17

Choose the correct answer

Select one of the following:

Explanation

Question 9 of 17

Why is the zebra fish ideal for research projects?

Select one or more of the following:

Explanation

Question 10 of 17

Which ion causes the depolarization phase and which ion causes the repolarization phase?

Select one of the following:

Explanation

Question 11 of 17

What are the differences between diffusion and facilitated diffusion?

Select one of the following:

Explanation

Question 12 of 17

Which are the main physical mechanisms used by the dialyzer membrane when filtering solute from blood?

Select one of the following:

Explanation

Question 13 of 17

Why is inflammation dangerous for the blood brain barrier?

Select one of the following:

Explanation

Question 14 of 17

What is the most important factor that determines how much O2 binds to hemoglobin?

Select one of the following:

Explanation

Question 15 of 17

What kind of transport requires Energy in the form of ATP to function properly?

Select one of the following:

Explanation

Question 16 of 17

Which transport mechanism in the blood brain barrier is triggered by an electrostatic interaction between a positively charged substance and a negatively charged plasma membrane surface?

Select one of the following:

Explanation

Question 17 of 17

How does the O2 pressure in the blood flow of an interstitial fluid vary when doing exercise respect to the normal state?

Select one of the following:

Explanation

What happens in the carotid bifurcation when the crosssection increases in the outgrowth ?

Which are the conditions for the lipidmediated transport to occur?