Tag: frog

Questions Related to frog

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

The Bidder's canal in frog help to pass out

zoology frog introduction to reproduction reproductive system in frog frog - digestive system, circulatory system, excretory system and reproductive system

  1. Ova

  2. Sperms

  3. Both A and B

  4. None of the above

Show answer
Correct Option: B
Explanation:

Bidder's canal is present in male frogs. Vasa-efferentia opens into the Bidder's canal and the Bidder's canal is connected to longitudinal collecting tubules by means of a number of transverse collecting ducts and helps in the passing of the sperms. So, the correct answer is option B.

Vasa efferentia in frog carry sperms to 

zoology frog introduction to reproduction reproductive system in frog frog - digestive system, circulatory system, excretory system and reproductive system

  1. Male cloaca

  2. Female cloaca

  3. Mullerian duct

  4. Bidder's canal

Show answer
Correct Option: D
Explanation:

In all terrestrial vertebrates except the placental mammals, the genital ducts and excretory ducts, open into the cloaca. In mammals, however, the cloaca becomes separate into a dorsal part, which conveys the faeces and a ventral part, which receives excretory and genital products. The sperm cells from seminiferous tubules pass into Bidder's canal through vasa efferentia. The Bidder's canal runs along the length of each kidney near its inner side. Thus, vasa efferentia conduct mature sperm from testis to the ureter.

Therefore, the correct answer is option D.

Eggs laid by female frog are protected by :

zoology frog introduction to reproduction reproductive system in frog frog - digestive system, circulatory system, excretory system and reproductive system

  1. Scrotal sae

  2. Hard shell

  3. Layer of jelly

  4. Exoskeleton

  5. None of these

Show answer
Correct Option: C
Explanation:

Eggs laid by female frogs are protected by Gelatinous material that prevents desiccation of the developing embryo.

So, the correct option is 'layer of jelly'.