Tag: circulatory system in frog

Questions Related to circulatory system in frog

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

Show answer
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

Show answer
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.

Show answer
Correct Option: B

The venous system of frog differs from that of a mammals in the presence of

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

  1. Renal portal system

  2. Hepatic portal system

  3. Three superior venacava

  4. Hepatic vein

Show answer
Correct Option: A
Explanation:

The renal portal system is involved in the function to move blood from the renal glomeruli to the peritubular plexus that surround the proximal and distal convoluted tubules. The renal portal system is found only in fishes, amphibians, reptiles and birds. Thus, mammals have no renal portal system. 

So, the correct answer is option A.

Ureotelic vertebrates are?

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

  1. Fish

  2. Reptiles and cartilaginous fish

  3. Bony fish and mammals

  4. Amphibians; mammals, cartilaginous fish

Show answer
Correct Option: D
Explanation:

The excretion of urea is called ureotelism. Land animals, mainly amphibians mammals, convert ammonia into urea. These animals are called ureotelic. Urea is a less toxic compound than ammonia. Eg marine fishes, many amphibians etc.


So the correct option is "amphibian, mammals, cartilaginous fish".

Nictitating membrane is an example of

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

  1. Analogous structures

  2. Homologous structures

  3. Vestigeal structures

  4. All

Show answer
Correct Option: C
Explanation:

Nictitating membrane (Third eyelid or Plica semilunaris). It is thin, transparent and freely movable fold which is used to clean cornea in frog, pigeon, apes etc.

Cloaca is a small, median chamber that is used to pass
zoology animal diversity - ii (phylum: chordata) circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system frog

  1. faecal matter

  2. urine

  3. sperms

  4. all of these

Show answer
Correct Option: D
Explanation:

The cloaca is a small, median chamber that is used to pass faecal matter, urine and sperms. So, the correct answer is (d).

In a uriniferous tubule, what is the short and tubular region, that follows the Bowman's capsule known as?

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

  1. Neck

  2. Proximal convoluted tubule

  3. Henle's loop

  4. Distal convoluted tubule

Show answer
Correct Option: C
Explanation:

In a uriniferous tubule, 'Henle's loop' is the short and tubular region, that follows the Bowman's capsule.

So, the correct option is 'Henle's loop'.

Select the correct option:

Fill up the blanks in the following paragraph by selecting the correct option.
The vascular system of frog is well-developed ______ (i) type. The blood vascular system involves heart, blood vessels and blood. Heart has 3 chambers, two atria and one ventricle and is covered by a membrane called ______ (ii). A triangular structure called ______ (iii) joins the right attrium.

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

  1. (i)- open; (ii)- conus arteriosus; (iii)- neurilemma

  2. (i)- closed; (ii)- sinus venosus; (iii)- pericardium

  3. (i)- open; (ii)- neurilemma; (iii)- conus arteriosus

  4. (i)- closed ; (ii)- pericardium; (iii)- sinus venosus

Show answer
Correct Option: D
Explanation:

The vascular system of frog is well-developed (i) 'closed' type. The blood vascular system involves the heart, blood vessels and blood. The heart has 3 chambers, two atria and one ventricle and is covered by a membrane called (ii) 'pericardium'. A triangular structure called (iii) 'sinus venosus' joins the right atrium.

So, the correct answer is '(i)- closed ; (ii)- pericardium; (iii)- sinus venosus'.

Pyramids in kidney of frog are ___________.

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

  1. Two

  2. Five

  3. Ten

  4. Absent

Show answer
Correct Option: A