Tag: frog

Questions Related to frog

Three chambered heart of frog is not as efficient as four chambered human heart because _______________.

zoology frog circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system animal diversity - ii (phylum: chordata)

  1. Heart muscles are not strong

  2. It does not hold enough blood

  3. Ventricle does not pump blood properly

  4. Oxygenated and deoxygenated blood mix up

Show answer
Correct Option: D
Explanation:
Frog has three chambered heart with two atria and one ventricle, the Left atrium receives oxygenated blood from the lungs while the right atrium receives deoxygenated blood from the body. Both the atria empty into single ventricle due to which the blood gets mixed up. So the 'Oxygenated and deoxygenated blood get mixed up'. 
So, the correct answer is 'Oxygenated and deoxygenated blood mix up'

Velocity of conduction of nerve impulse in frog is ________________.

zoology animal diversity - ii (phylum: chordata) circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system frog

  1. Faster than sound

  2. 30 metro per second

  3. 300 metro per second

  4. None of these

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Correct Option: D

Stratum corneum of Frog contains.

zoology animal diversity - ii (phylum: chordata) circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system frog

  1. Living non-nucleated flattened cells

  2. Living nucleated columnar cells

  3. Dead nucleated columnar cells

  4. Dead dry flattened cells

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Correct Option: A

What is correct?

zoology frog circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system animal diversity - ii (phylum: chordata)

  1. Rabbit has renal portal system only

  2. Frog has renal portal system only

  3. Rabbit has both renal and hepatic systems

  4. Frog has both renal and hepatic portal systems.

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Correct Option: D

The parashenoid bone in  frog forms

zoology animal diversity - ii (phylum: chordata) circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system frog

  1. Base of cranium

  2. Floor of cranium

  3. Dorsal side of cranium

  4. Dorsolatral side of cranium

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Correct Option: B
Explanation:

Parasphenoid bone is a flattened and inverted Tshaped bone which lies in the median along the floor of cranium.

Mixing of oxygenated and deoxygenated blood occurs in the ventricle of

zoology frog circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system animal diversity - ii (phylum: chordata)

  1. Scoliodon

  2. Frog

  3. Rabbit

  4. Pigeon.

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Correct Option: B

Pituitary gland is crushed and injected in Frog. Frog will

zoology frog circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system animal diversity - ii (phylum: chordata)

  1. Start laying eggs almost immediately

  2. Change colour

  3. Undergo metamorphosis

  4. Die

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Correct Option: B

It opens into right auricle in frog heart Coronary sinus _______________.

zoology frog circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system animal diversity - ii (phylum: chordata)

  1. Drains impure blood from pulmonary veins to left auricle

  2. Receives impure blood from heart musculature via coronary veins

  3. Drains pure blood in right auricle

  4. More than one options are correct

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Correct Option: A

Which of the following are similar in frog and tadpole?

zoology animal diversity - ii (phylum: chordata) circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system frog

  1. Length of alimentary canal

  2. Mode of respiration

  3. Nature of blood

  4. Habitat

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Correct Option: A

Compared to those of humans, erythrocytes of Frog are

zoology frog circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system animal diversity - ii (phylum: chordata)

  1. With nucleus but without haemoglobin

  2. Nucleated and with haemoglobin

  3. Smaller and fewer

  4. Without nucleus but with haemoglobin.

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Correct Option: B