Home
Class 12
BIOLOGY
Frog's heart when taken out of the body ...

Frog's heart when taken out of the body continues to beat for sometime
Select the best option from the following statements
(A) Frog is a poikilotherm
(B) Frog does not have any coronary circulation
(C) Heart is "Myogenic" in nature
(D) Heart is autoexcitable

A

Only (iii)

B

Only (iv)

C

(i) and (ii)

D

(iii) and (iv)

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • BIOTECHNOLOGY : PRINCIPLES AND PROCESSES

    TRUEMEN BIOLOGY ENGLISH|Exercise MULTIPLE CHOICE QUESTIONS|124 Videos
  • BREATHING AND EXCHANGE OF GASES

    TRUEMEN BIOLOGY ENGLISH|Exercise MULTIPLE CHOICE QUESTIONS|199 Videos

Similar Questions

Explore conceptually related problems

Good vision depends on adequate intake of cacotene rich food Select the best option from the following statements (A) Vitamin A derivatives are formed from carotene (B) The photopigments are embedded in the membrane discs of the ineer segment ( C) Retinal is a derivative of Vitamin A (D) Retinal is a light absorbing part of all the visual photopigments

Good vision depends on adequate intake of cacotene rich food Select the best option from the following statements (A) Vitamin A derivatives are formed from carotene (B) The photopigments are embedded in the membrane discs of the ineer segment ( C) Retinal is a derivative of Vitamin A (D) Retinal is a light absorbing part of all the visual photopigments

Good vision depends on adequate intake of cacotene rich food Select the best option from the following statements (A) Vitamin A derivatives are formed from carotene (B) The photopigments are embedded in the membrane discs of the ineer segment ( C) Retinal is a derivative of Vitamin A (D) Retinal is a light absorbing part of all the visual photopigments

Which one of the following has a three chambered heart? (a) frog (b) snake (c) crocodile (d) lizard

Which one of the following has a four chambered heart? (a) frog (b) snake (c) crocodile (d) lizard

Consider the following statements? (a) Before birth, foramen ovale allows the blood to pass from right atrium to left atrium , thus bypassing the pulmonary circulation , (b) Heart is protected by a double walled pericardium , (c) The muscle fibres present in heart are different from smooth muscles in being mesodermal in origin , (d) Nodal tissues like AVN, SAN are specialised neural tissues which are distributed in heart. How many among the statements mentioned above are correct?

Read the following five statements (A to E) and select the option with all correct statement (A) Mosses and Lichens are the first organisms to colonise a bare rock. (B) Seloginella is a homopourous pteridophyte. (C) Coralloid roots in Cycas have VAM. (D) Main plant body in bryophytes is gametophytic whereas in pteridophytes it is sporophytic. (E) In Gymnoperms, male and female gametophytes are present within sporangla located on sporophyte.

Read the following five statements (A to E) and select the option with all correct statement (A) Mosses and Lichens are the first organisms to colonise a bare rock. (B) Seloginella is a homospourous pteridophyte. (C) Coralloid roots in Cycas have VAM. (D) Main plant body in bryophytes is gametophytic whereas in pteridophytes it is sporophytic. (E) In Gymnoperms, male and female gametophytes are present within sporangia located on sporophyte.

Read the following five statements (A to E) and select the option with all correct statement (A) Mosses and Lichens are the first organisms to colonise a bare rock. (B) Seloginella is a homopourous pteridophyte. (C) Coralloid roots in Cycas have VAM. (D) Main plant body in bryophytes is gametophytic whereas in pteridophytes it is sporophytic. (E) In Gymnoperms, male and female gametophytes are present within sporangla located on sporophyte.

The general motion of a rigid body can be considered to be a combination of (i) a motion of its centre of mass about an axis, and (ii) its motion about an instantaneous exis passing through the centre of mass. These axes need not be stationary. Consider, for example, a thin uniform disc welded (rigidly fixed) horizontally at its rim to a massless, stick as shown in the figure. When the disc-stick system is rotated about the origin on a horizontal frictionless plane with angular speed omega the motion at any instant can be taken as a combination of (i) a rotation of the disc through an instantaneous vertical axis passing through its centre of mass (as is seen from the changed orientation of points P and Q). Both these motions have the same angular speed omega in this case Now consider two similar system as shown in the figure: Case (a) the disc with its face vertical and parallel to x-z plane, Case (b) the disc with its face making an angle of 45^@ with x-y plane and its horizontal diameter parallel to x-axis. In both the cases, the disc is welded at point P, and the systems are rotated with constant angular speed omega about the z-axis. Which of the following statements regarding the angular speed about the instantaneous axis (passing through the centre of mass) is correct?

TRUEMEN BIOLOGY ENGLISH-BODY FLUIDS AND CIRCULATION-Multiple Choice Questions
  1. If two persons with 'AB' blood group marry and have suffieciently larg...

    Text Solution

    |

  2. The diagram given here is the standard ECG of a normal person.The P-wa...

    Text Solution

    |

  3. Assertion: Smaller the organism, higher is the rate of metabolism per ...

    Text Solution

    |

  4. Assertion : Persons sufffering from haemophilia fail to produce blood ...

    Text Solution

    |

  5. How do parasympathertic neural signals affect the working the heart

    Text Solution

    |

  6. Person with blood group AB is considered as universal recipient becaus...

    Text Solution

    |

  7. A man with blood group 'A' marries a women with blood group 'B'. What ...

    Text Solution

    |

  8. Which one of the following is correct ?

    Text Solution

    |

  9. Blood pressure in the mammalian aorta is maximum during

    Text Solution

    |

  10. Erythropoiesis starts in

    Text Solution

    |

  11. Which one of the following animals has two separate circulatory pathwa...

    Text Solution

    |

  12. If you suspect major deficiency of antibodies in a person, to which o...

    Text Solution

    |

  13. Doctors use stethoscope to hear the sounds produced during each cardia...

    Text Solution

    |

  14. Blood pressure in the pulmonary artery is

    Text Solution

    |

  15. It is much easier for a small animal to run uphill than for a large an...

    Text Solution

    |

  16. The hepatic portal vein drains blood to liver from

    Text Solution

    |

  17. Frog's heart when taken out of the body continues to beat for sometime...

    Text Solution

    |

  18. Which of the following gastric cells indirectly help in erythropoiesis...

    Text Solution

    |

  19. Match the items given in Column I with those in Column II and select t...

    Text Solution

    |

  20. Match the items given in Column I with those in Column II and select t...

    Text Solution

    |