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Respiration is:

A.	An energy yielding process	B.	An energy consuming process
C.	A biosynthetic process	D.	None of these

External respiration is:

A.	A simple physical process involving gaseous exchanges	B.	Complex chemical process involving a series of reactions
C.	Transport of gases from blood to tissue	D.	None of these

Chemical degradation of food substances occurs within cells during:

A.	Breathing	B.	Internal respiration
C.	Tissue respiration	D.	All of these

Respiratory organs in frog are:

A.	Skin	B.	Buccopharyngeal cavity
C.	Lungs	D.	All of these

Which of the following respirations in frog account for about 65% of O2 intake:

A.	Cutaneous	B.	Buccopharyngeal
C.	Pulmonary	D.	All of these

Cutaneous respiration in frog account for about:

A.	5% of total O2 intake	B.	30% of total O2 intake
C.	65% of total O2 intake	D.	80% of total O2 intake

During buccopharyngeal cavity is the floor of buccopharyngeal cavity is subjected to oscillatory movements by action of:

A.	Stemohyal muscles	B.	Perohyal muscles
C.	Both of these muscles	D.	None of these muscles

During buccopharyngeal respiration in frog:

A.	Mouth, gullet, glottis and nares remain open	B.	Mouth, gullet, glottis remain closed but nares remain open
C.	Mouth remains closed but gullet, glottis and nares remain open	D.	Mouth and gullet remain - closed but glottis and nares remain open

In frog the buccopharyngeal respiration accounts for about:

A.	5% of total O2 intake	B.	10% of total O2 intake
C.	20% of total O2 intake	D.	25% of total O2 intake

10.

Lungs in frog are:

A.	Distensible, pinkish sac-like structures	B.	Distensible, pinkish and solid structures
C.	Distensible, pinkish and spongy structures	D.	Distensible, rosy and spongy structures