protos asked: 1.Which one of the following is not a disadvantage of the open circulatory system?
a)nutrients is rapidly reached to the tissues
b)increase the metabolism of the animals
c)blood flow slowly through the hemocoel
d)body movement increase due to increased blood supply
e)(a) and (b) are correct
2 What is the disadvantage of having three chambered heart in amphibians and reptiles?
a)fast response to the stimuli
b)less oxygenated blood pumped to the body
c)rapid blood flow throgh the vessel
d)decreased body temperature
e)direct blood flow from the atria to the ventricules
3. Which one of the following is the function of AV valve?
a)to control blood flow to the lungs
b)to control the blood flow to the aorta
c)to prevent the backflow to the atria
d)to prevent back flow to the ventricules
e)Both (c) and (d) are correct
4. First heart sound is generated by……………..
a)during the contraction of atrial muscle
b)during the contraction of ventricular muscle
c)during the contraction of ventricular muscle and closure of AV valve
d)during the closure of semulunar valve and atrial systole
e)during the contraction of atrial muscle and semulunar valve
5. Which of the following increase the stroke volume?
a)Increased heart rate
b)Parasymathetic nerve stimulation
c)İncreased peripheral resistance
d)Decreased venous return
e)All of above are ture
5. Baroreceptors are stimulated ………………..
a) when the arterial pressure increaseb) during the hypertension
c) during ventricular diastoled) as the parasymphatetic nerve stimulated
e) None of above
6. Which of the following is the function of lymphatic system?
a)carries metabolic end products from tissue cell
b)produce plasma of the blood
c)carries protein from intercellular space to the systemic circulation
d)prevents the odema formation
e)Both (c) and (d) are correct
7. Which one of the following is not used in gas exchange?
a) dermal gills b) moist skin c) pharynxd) lungs
e)trachea
8. Which animals have continous gas exchange during inspiration and expiration?
a) Toadb) Birdsc) Reptilesd) Froge) Both (a) and (b)
9. Which one of the following is an organ of the respiratory system?
a) Bronchi b) Bronchioles c) alveold)Diaphragme) All
10. The partial pressure of the carbondioxide in atmospheric air is less than the ……….
a) alveolar air b) venous blood c) arterial blood
d) the blood in the pulmonary artery e) All of above are true
11. Which one of the following explain the bohr effect?
a)Displacment of the bond oxygen in the hemoglobin with the hydrogen ion in decreased pH.
b)The displacment of CO2 and O2 bound to the hemoglobin
c)Less diffusion of CO2 to the alveoli due to the decreased pH
d)The displacment of H+ with the Cl- ions with each other
e)None of them
12. Decopression sickness occur due to……………….
a)Rapid nitrogen release from the blood
b)More CO2 in the blood
c)More binding of CO2 to the hemoglobin
d)Less diffusion of gases to the blood
e)Decreased blood flow to the lung
13. Which of the following is not related with the respiartory rate in humans
a)The rate is 12/min
b)In high altitude respiratory rate increase
c)Increased respiratory rate decrease oxygen in the blood
d)Obligatory restriction of respiration follows by increased respiratory rate.
e)Voluntary frequent respiration is followed by spontaneous slow respiratory rate
14. Protonephridia is an excretory organ in………………..
a) Vertebrate animals b) Annelids c) Crustacean
d) Flatworms e) Insect
15. Glomerulus comprise………….
a)Both tubule and bowman capsule
b)Convulated proximal tubule and capillaries
c)Convulated tubule and capillaries
d)Bowman capsule and capillaries
e)Afferent and efferent aryteriole and bowman capsule
16. The function of pretubular capillaries
a)To excrete especially uric acid to the tubule of the nephron
b)To reabsorb needed materials from filtrate
c)To remove waste product from blood
d)To dilate the urine
e)Both (b) and (c) are correct
17. Vasa recta ………….
a)is a tubule near to the collecting duct of the kidney
b)is a capillary networks around the tubules
c)the vessel lines next to the henle loop
d)the tubules near to the rectal region
e)the tubules that only reabsorbtion occur
18. How the H ions are produced in the tubule cells?
a)By the activity of karbonic anhydrase
b)By the degradation of CO2c)By the release of H ions from erhythrocyte
d)By the icreased aerobic respiratione)None
19. During the childhood of man, which of the following enzyme released more?
a) Sellulaseb) Procarboxypeptidasec) Amylased) Rennin
e) Katepsin
20. Which of the following lead to he movement of Villi along the small intestine
a)Contraction of muscularis mucosab)Contraction of circular muscle
c)Contraction of longitiduanal muscled)Release
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