Biology
General
Easy

Question

If heart of a mammal was injected with 2% CaCl subscript 2 solution, then

  1. Heart beat will increase

  2. Heart beat will decrease

  3. Heart beat will stop

  4. No effect

The correct answer is:

Heart beat will stop


    Because excess of Ca++ will increase the force of contraction, thereby causing spasm of cardiac muscles.

    Related Questions to study

    General
    Maths-

    If α2, b2, c2 are A.P then cot A, cot B, cot C are in

    If α2, b2, c2 are A.P then cot A, cot B, cot C are in

    Maths-General
    General
    biology

    The first heart sound is

    The first heart sound is

    biologyGeneral
    General
    chemistry-

     The compound (C) is:

     The compound (C) is:

    chemistry-General
    parallel
    General
    chemistry-

    The pressure-volume of varius thermodynamic processes is shown in graphs:

    Work is the mole of transference of energy. It has been observed that reversible work done by the system is the maximum obtainable work
    w subscript r e v end subscript greater than w subscript i r r end subscript
    The works of isothermal and adiabatic processes are different from each other
    w subscript i s o t h e r m a l blank r e v e r s i b l e end subscript equals 2.303 n R T log subscript 10 end subscript invisible function application open parentheses fraction numerator V subscript 2 end subscript over denominator V subscript 1 end subscript end fraction close parentheses
    equals 2.303 n R T log subscript 10 end subscript invisible function application open parentheses fraction numerator P subscript 2 end subscript over denominator P subscript 1 end subscript end fraction close parentheses
    w subscript a d i a b a t i c blank r e v e r s i b l e end subscript equals C subscript V end subscript open parentheses T subscript 1 end subscript minus T subscript 2 end subscript close parentheses
    If w subscript 1 end subscript comma w subscript 2 end subscript comma w subscript 3 end subscript and w subscript 4 end subscript are work done in isothermal, adiabatic, isobaric, and isochoric reversible processes, respectively then the correct sequence (for expansion) would be

    The pressure-volume of varius thermodynamic processes is shown in graphs:

    Work is the mole of transference of energy. It has been observed that reversible work done by the system is the maximum obtainable work
    w subscript r e v end subscript greater than w subscript i r r end subscript
    The works of isothermal and adiabatic processes are different from each other
    w subscript i s o t h e r m a l blank r e v e r s i b l e end subscript equals 2.303 n R T log subscript 10 end subscript invisible function application open parentheses fraction numerator V subscript 2 end subscript over denominator V subscript 1 end subscript end fraction close parentheses
    equals 2.303 n R T log subscript 10 end subscript invisible function application open parentheses fraction numerator P subscript 2 end subscript over denominator P subscript 1 end subscript end fraction close parentheses
    w subscript a d i a b a t i c blank r e v e r s i b l e end subscript equals C subscript V end subscript open parentheses T subscript 1 end subscript minus T subscript 2 end subscript close parentheses
    If w subscript 1 end subscript comma w subscript 2 end subscript comma w subscript 3 end subscript and w subscript 4 end subscript are work done in isothermal, adiabatic, isobaric, and isochoric reversible processes, respectively then the correct sequence (for expansion) would be

    chemistry-General
    General
    biology

    The nerve like modified muscle in the right auricle is known as

    The nerve like modified muscle in the right auricle is known as

    biologyGeneral
    General
    chemistry-

     Process A ⟶ B represents

     Process A ⟶ B represents

    chemistry-General
    parallel
    General
    chemistry-

    A: Excess amount of CO, in air is responsible for greenhouse effect.
    R: CO2 is largely produced in respiratory functions.

    A: Excess amount of CO, in air is responsible for greenhouse effect.
    R: CO2 is largely produced in respiratory functions.

    chemistry-General
    General
    Maths-

    If a,b,c are in A.P the cot space A over 2 comma cot space B over 2 comma cot space C over 2 are in

    If θ is one of the acute angles in a triangle, then the sine of theta is the ratio of the opposite side to the hypotenuse, the cosine is the ratio of the adjacent side to the hypotenuse, and the tangent is the ratio of the opposite side to the adjacent side.

    If a,b,c are in A.P the cot space A over 2 comma cot space B over 2 comma cot space C over 2 are in

    Maths-General

    If θ is one of the acute angles in a triangle, then the sine of theta is the ratio of the opposite side to the hypotenuse, the cosine is the ratio of the adjacent side to the hypotenuse, and the tangent is the ratio of the opposite side to the adjacent side.

    General
    biology

    Systemic heart refers to

    Systemic heart refers to

    biologyGeneral
    parallel
    General
    biology

    Which is a analgesic drug

    Which is a analgesic drug

    biologyGeneral
    General
    biology

    Penicillin was discovered by -

    Penicillin was discovered by -

    biologyGeneral
    General
    Maths-

    If fraction numerator b over denominator c plus a end fraction plus fraction numerator c over denominator a plus b end fraction equals 1 then

    All three sides are equal. All three angles are congruent and are equal to 60 degrees. It is a regular polygon with three sides. The perpendicular drawn from vertex of the equilateral triangle to the opposite side bisects it into equal halves.

    If fraction numerator b over denominator c plus a end fraction plus fraction numerator c over denominator a plus b end fraction equals 1 then

    Maths-General

    All three sides are equal. All three angles are congruent and are equal to 60 degrees. It is a regular polygon with three sides. The perpendicular drawn from vertex of the equilateral triangle to the opposite side bisects it into equal halves.

    parallel
    General
    physics-

    Two bodies of mass 1 kg and 3 kg have position vector left parenthesis straight i plus 2 straight j with not stretchy hat on top plus straight k right parenthesis times text  and  end text times left parenthesis negative 3 straight i minus 2 straight j plus straight k right parenthesis   respectively the center of mass of this system has a position vector.

    Two bodies of mass 1 kg and 3 kg have position vector left parenthesis straight i plus 2 straight j with not stretchy hat on top plus straight k right parenthesis times text  and  end text times left parenthesis negative 3 straight i minus 2 straight j plus straight k right parenthesis   respectively the center of mass of this system has a position vector.

    physics-General
    General
    Maths-

    In straight triangle A B C comma left parenthesis a plus b plus c right parenthesis open parentheses tan A over 2 plus tan space B over 2 close parentheses equals

    In straight triangle A B C comma left parenthesis a plus b plus c right parenthesis open parentheses tan A over 2 plus tan space B over 2 close parentheses equals

    Maths-General
    General
    physics-

    In HCl macule the separation between the nuclei of the two atoms is about1.27 straight A open parentheses IA equals 10 to the power of negative 10 end exponent straight m close parentheses The approximate location of the center of mass of the molecule is - -A,i with respect of Hydrogen atom ( mass of  is 35.5 times of mass of Hydrogen)

    In HCl macule the separation between the nuclei of the two atoms is about1.27 straight A open parentheses IA equals 10 to the power of negative 10 end exponent straight m close parentheses The approximate location of the center of mass of the molecule is - -A,i with respect of Hydrogen atom ( mass of  is 35.5 times of mass of Hydrogen)

    physics-General
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.