Top 250+ Solved Respiration MCQ Questions Answer
Q. Glycolysis occurs in (Gujarat GET Q.B)
a. Cytoplasm
b. Mitochondria
c. Chloroplast
d. Golgi complex
Q. Which is not formed during anaerobic respiration ?
a. Pyruvate
b. Ethyl alcohol
c. Acetyl CoA
d. CO2
Q. Substrate in glycolysis is normally
a. Fructose
b. Glucose
c. Pyruvic acid
d. Phosphoglyceric acid
Q. Decarboxylation of pyruvic acid results in the formation of
a. Water
b. Acetyl CoA
c. Glucose
d. PGA.
Q. Which is CORRECT?
a. voluntary control of breathing originates in the pons/medulla
b. automatic breathing control descends to the respiratory musculature via the corticospinal tract
c. the reciprocal innervation in automatic breathing is via descending pathways rather than spinal reflexes
d. automatic fibres descend to innervate the external intercostal muscles at each thoracic level to mediate expiration
e. there is no output to the phrenic nerves during expiration
Q. Which abolishes automatic respiration? Destruction of:
a. pre-Bottzinger complexes
b. ventral gp respiratory neurons
c. dorsal gp respiratory neurons
d. section at the inferior border of the pons
e. transaction rostral to the pons
Q. Which does not stimulate carotid bodies?
a. carbon monoxide poisoning
b. cyanide poisoning
c. hypoxia
d. hypercapnia
e. increased H+ concentration
Q. All of the following shift the Hb dissociation curve to the right during exerciseEXCEPT:
a. increased 2,3 DPG
b. increased pCO2
c. increased temperature
d. decreased pO2
e. increased H+ concentration
Q. Hypoxia at high altitudes:
a. is a form of stagnant hypoxia
b. causes symptoms of cyanosis
c. causes severe symptoms in an unacclimatised person at 3,000m
d. can always be reversed with 100% O2
e. increased H+ concentration