Questions

Lithium is the lightest of all the metals due to its low atomic number among metals. It is the lightest solid element.

Properties ::

* It is a soft silvery-white alkali metal.

* Lithium is highly reactive and flammable and is stored in mineral oil.

87-year old renowned director Kasinadhuni Viswanath was on 24 April 2017 named for the prestigious Dada Saheb Phalke award for outstanding contribution to the film industry. He is a celebrated filmmaker in Telugu film industry but has also been active in Tamil and Hindi cinema.

– He is known for making films on content-driven stories that have revolved around social themes like disability, untouchability and the evils of dowry.

– He becomes the 48th recipient of the award, the highest recognition in Indian cinema, which consists of a golden lotus, a cash prize of Rs. 10 lakhs and a shawl.

– The recipient of five National Film Awards, Viswanath is known for his movies — “Sankarabharanam”, “Sagara Sangamam” (starring Kamal Haasan and Jayaprada), “Swati Mutyam”, “Saptapadi”, “Kaamchor”, “Sanjog” and “Jaag Utha Insaan” among others.

A sarcomere is the basic unit of striated muscle tissue. It is the repeating unit between two Z lines.

Skeletal muscles are composed of tubular muscle cells (myocytes called muscle fibers or myofibers) which are formed in a process known as myogenesis. Muscle fibers contain numerous tubular myofibrils. Myofibrils are composed of repeating sections of sarcomeres, which appear under the microscope as alternating dark and light bands. Sarcomeres are composed of long, fibrous proteins as filaments that slide past each other when a muscle contracts or relaxes.

A muscle fiber from a biceps muscle may contain 100,000 sarcomeres.