In a toy, two men with red and blue caps are moving in two different circular paths of same radii. When the man with red cap moves 3 steps, the one with blue cap moves 5 steps in the same time, but the distance traversed by the man with red cap in 5 steps, is equal to the distance traversed by the man with blue cap in 4 steps. What is the number of rounds the man with red cap made the man with blue cap completed 100 rounds?

#Question id: 10975

#Unit 7. System Physiology – Animal

A teenaged boy with numerous nosebleeds was referred to a physician for evaluation prior to a minor surgery. His prothrombin time (PT) was 11 sec (11–15 sec normal), partial thromboplastin time (PTT) was 58 sec (25–40 sec normal), and bleeding time was 6.5 min (2–7 min normal). Which of the following is most likely abnormal in this young man?

#Question id: 9584

#Unit 7. System Physiology – Animal

In given Relationship of oxygen production to flash energy, the first evidence for the interaction between the antenna pigments and the reaction centre, What conclusion can be drawn about based on graph;

a.) several hundred pigments are associated with each reaction centre and that each reaction centre must operate four times to produce 1 molecule of oxygen—hence the value of 2500 chlorophylls per O2

b.) low light intensity of the curve, an increase in the number of photons stimulates a proportional increase in oxygen evolution. Thus, the slope of the curve measures the quantum yield for oxygen production

c.) The quantum yield for a particular process can range from 0 →if that process does not respond to light to 1.0→if every photon absorbed contributes to the process by forming a product

d.) O2 require more than a single photochemical event to be formed, and therefore have a lower quantum yield of formation than the photochemical quantum yield. It takes about ten photons to produce one molecule of O2, so the quantum yield of O2 production is about 0.1

Which of the following statements would be correct relates with graph?

#Question id: 31331

#Unit 7. System Physiology – Animal

#Question id: 31407

#Unit 7. System Physiology – Animal

#Question id: 10976

#Unit 7. System Physiology – Animal

In a resting adult, the typical ventricular ejection fraction has what value?

#Question id: 10977

#Unit 7. System Physiology – Animal

A 60-year-old man’s EKG shows that he has an R-R interval of 0.55 sec. Which of the following best explains his condition?