[" 3.The amoeboid movement results from "],[" (a) interactions aniong actin,myosin and ATP,etc."],[" (b) condinated beats of clila: "],[" (c) whip like action of flageila "],[" (d) action by the mitotic spindle,similar to what "],[" happens during mitosis and meiosis."]

A heavy rope of mass m and length 2L is hanged on a smooth little peg with equal lengths on two sides of the peg. Right part of the rope is pulled a little longer and released. The rope begins to slide under the action of gravity. There is a smooth cover on the peg (so that the rope passes through the narrow channel formed between the peg and the cover) to prevent the rope from whiplashing. (a) Calculate the speed of the rope as a function of its length (x) on the right side. (b) Differentiate the expression obtained in (a) to find the acceleration of the rope as a function of x. (c) Write the rate of change of momentum of the rope as a function of x. Take downward direction as positive (d) Find the force applied by the rope on the peg as a function of x. (e) For what value of x, the force found in (d) becomes zero? What will happen if there is no cover around the peg ?

Arrange the following in correct sequence that happen during cell division and select the option accordingly. a. Disappearing of mitotic spindle. b. Migration of daughter chromosomes. c. Beginning of centrioles movement towards opposite poles. d. Attaching of spindle microtubules to the kinetochore. a,) d, c, b, a b.)c, d, b, a c.) b, c, a, d d.) d. c, a, b

While travelling back to his residence in the car, Dr. Pathak was caught up in a thunderstorm. It became very dark. He stopped driving the car the waited for thunderstom to stop. Suddenly he noticed a child walking alone on the road. He asked the boy to come inside the car till the thunderstorm stopped. Dr. Pathak dropped the boy at his residence. The boy insisted that Dr. Pathak should meet hsi parents. The parents expressed their gratitude to Dr. Pathak for his concern for safety of the child. Answer the following questions based on the above information: (a) Why is it safer to sit inside a car during a thunderstorm? (b) Which two values are displayed by Dr. Pathak in his actions? (c ) Which values are reflected in parents response to Dr. Pathak ? (d) Give an example of a similar action on your part in the past from everyday life.

An important project at AMB consultants is running behind schedule by a month. This has upset their clients and might affect the reputation of the company in the long run. No managerial action like assigning more workers, equipment or giving overtime has been able to solve the problem. What managerial action may now be taken by the company to avoid such a situation from arising in the future A. Revise the schedule, B. Assigning additional workers and equipment to the project, C. Get permission for further overtime work, D. Both B&C.

The organ A which is located inside the skull of our body is protected by a bony box B and it is surrounded by three membranes C. the space between the membranes is filled with a liquid D which protects the organ A from mechanical shocks. The organ A in combination with another organ E makes up the central nervous system. (a) What is organ A? (b) What are (i) B (ii) C, and (iii) D ? (C) Name the organ E. (d) While walking barefooted, it we happen to step on a sharp piece of stone, we immediately lift our foot up. which of the two organs, A or E, is directly involves in this action? (e) If we step out from a darkened room into bright sunshine, we close our eyes for a moment. Which of the two organs, A or E, is directly involves in this action?