Home
Class 12
BIOLOGY
In an enzyme catalyzed reaction, it is p...

In an enzyme catalyzed reaction, it is possible to reverse the inhibition of a reaction by increasing substrate concentration in which of the following case?
(a) Addition of succinate when malonate inhibits succinate dehydrogenase
(b) Addition of ATP during glycolysis
(c) Removal of glucose in hexokinase catalysed reaction
(d) Addition of acetylcholine in case of Myasthenia gravis

A

Addition of succinate when malonate inhibits succinate dehydrogenase

B

Addition of ATP during glycolysis

C

Removal of glucose in hexokinase catalysed reaction

D

Addition of acetylcholine in case of Myasthenia gravis

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • TEST 1

    AAKASH INSTITUTE ENGLISH|Exercise Examplle|19 Videos

  • STRUCTURAL ORGANISATION IN ANIMALS (CONTD . . .) (ANIMAL MORPHOLOGY)

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-D)|10 Videos

  • TEST 2

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|619 Videos

Similar Questions

Explore conceptually related problems

Increase in concentration of substrate in case of competitive inhibition results in (a) No change in rate of reaction (b) Increase in rate of reaction to original V_max (c) Decrease in K_m value of the enzyme (d) Both (b) & (c)

Which one of the following hormones also produces: anti-inflammatory reactions in man and suppresses the immune response in addition to its primary functions? (a) Cortisol (b) Thymosin (c) Thyrocalcitonin (d) Erythropoietin

Salts A, B, C, D and E undergo reactions (i) to (v) respectively. Identify the anion present in these salts on the basis of these reactions. Tabulate your answers in the format given below: (i) When silver nitrate solution is added to a solution of A, a white precipitate, insoluble in dilute nitric acid, is formed. (ii) Addition of dilute hydrochloric acid to B produces a gas which turns lead acetate paper black. (iii) When a freshly prepared solution of ferrous sulphate is added to a solution of C and concentrated sulphuric acid is gently poured from the side of the test-tube, a brown ring is formed. (iv) When dilute sulphuric acid is added to D a gas is produced which turns acidified potassium dichromate solution from orange to green. (v) Addition of dilute hydrochloric acid to E produces an effervescence. The gas produced turns lime water milky but does not affect acidified potassium dichromate solution.

Intramolecular aldol condensation : The aldol condensation also offer a convenient way to synthesize molecules with five and six membered ring.This can be done by an intramolecular aldol condensation using a dialdehyde, a keto aldehyde or a diketone as the substrate.The major product is formed by the attack of the enolate from the ketone side of the molecule that adds to the aldehyde group.The reason the aldehyde group undergoes addition preferentially may arise from the greater reactivity of aldehyde towards nucleophilic addition.In reaction of this type five membered rings from far more readily than seven membered rings and six membered rings are more favourable than four or eight membered rings when possible. The true statement about the major product of CH_3-oversetOoverset(||)C-CH_2-CH_2-CH_2-CH_2-oversetoverset(O)(||)C-H in reaction with aq.NaOH followed by heating is.

Consider the following gas - phase reaction : 2A(g)+B(g)rArrC(g)+D(g) An equilibrium mixture of reactants and products is subjected to the following changes :- (I) A decrease in volume (II) An increase in temperature (III) Addition of reactants (IV) Addition of an inert gas at constant volume . Which of these changes affect the composition of the equilibrium mixture but leaves the value of K_(c) unchanged : -

(i) Which of the following statements is wrong about alkanes ? (A) They are all saturated hydrocarbon. (B) They can undergo addition as well as substitution reaction. (C) They are almost non polar in nature. (D) On complete combustion give out carbon dioxide and water.

Read the following statements (a-e) and choose the suitable option w.r.t. respiration a. A series of slow step-wise reactions controlled by enzymes. b. Breaking of the C-C bonds of respiratory substrates through oxidation within the cells. c. Liberation of energy. d. Breakdown of complex molecules to yield energy which takes place in mitochondria only. e. Carbon skeleton produced during respiration is not used as precursor for cellular biosynthesis of other molecules.

For a sponaneous reaction, the free energy change must be negative, Delta G=Delta H-T Delta S, Delta H is the enthalpy change during the reaction. T is the absolute temperature, and Delta S is the change in entropy during the reaction. Consider a reaction such as the formation of an oxide M+O_(2) to MO Dioxygen is used up in the course of this reaction. Gases have a more random structure (less ordered) than liquid or solids. Consequently gases have a higher entropy than liquids and solids. In this reaction S (entropy or randomness) decreases, hence Delta S is negative. Thus, if the temperature is raised then T Delta S becomes more negative,Since, TDelta S is substracted in the equation, then Delta G becomes less negative. Thus, the free energy change increases with the increase in temperature. The free energy changes that occur when one mole of common reactant (in this case dioxygen) is used may be plotted graphically aginst temperature for a number of reactions of metals to their oxides. The following plot is called an Ellingham diagram for metal oxide. Understanding of Ellingham diagram is extremely important for the efficient extraction of metals. Which of the following elements can be prepared by heating the oxide above 400^(@)C ?

AAKASH INSTITUTE ENGLISH-TEST 1-Examplle
  1. In an enzyme catalyzed reaction, it is possible to reverse the inhibit...

    Text Solution

    |

  2. Pollen grains are shed at two-celled stage in angiosperms.Find the cor...

    Text Solution

    |

  3. An aquatic plant which is pollinated by water is

    Text Solution

    |

  4. An angiospermic plant has the following charecteristics.Identify the t...

    Text Solution

    |

  5. Select the correct statements about apomitic seeds.a)these seeds are p...

    Text Solution

    |

  6. Paethenocarpic fruits

    Text Solution

    |

  7. A typical angiospermic seed consist of all,except

    Text Solution

    |

  8. Persistent nucellus in the seeds of black pepper is called

    Text Solution

    |

  9. Both autogamy and geitonogamy are prevented in

    Text Solution

    |

  10. Select the odd w.r.t. the ploidy level of cells of embryo sac.

    Text Solution

    |

  11. Generative cell of pollen grain

    Text Solution

    |

  12. The outer layer of sporoderm which helps in fossilization of pollen gr...

    Text Solution

    |

  13. The innermost layer of anther wall whose cells nourish the developing ...

    Text Solution

    |

  14. If the chromosome number in a meiotically produced gamete of a plant i...

    Text Solution

    |

  15. Male gametes require water to reach the female gamete in

    Text Solution

    |

  16. China rose is

    Text Solution

    |

  17. Heterogametes are found in

    Text Solution

    |

  18. In flowering plants,which of the following structures is present befor...

    Text Solution

    |

  19. Pollen grains are the carrier of male gametes in

    Text Solution

    |

  20. Syngamy does not occur outside the body of the organism in

    Text Solution

    |