Important Tehsil Dar Test MCQS For NTS PPSC Tests

 The SI unit of charge is Coulomb.

 Very High Frequency (VHF) has shorter

wavelengths.

 Long-sight defect could be corrected by using

convex lens.

 Deficiency of Vitamin A results in night

blindness.

 For a fixed mass of gas at constant

temperature, if we decrease volume, the

pressure will increase.

 The lifespan of Red Blood Cells is 120 days.

 The density of water is 1 g/cm 3.

 Radioactivity was discovered by Becquerel.

 A device which converts chemical energy into

electrical energy is called battery.

 The Sun is a Star.

 The average adult has a blood volume of about

5 liters.

 The most abundant element in the universe is

Hydrogen.

 The most abundant element in the Earth's crust

is Oxygen.

 Each day human body breathes in 15,000 to

20,000 liters of air.

 Deficiency of Vitamin-D results in rickets.

 The SI unit of "pressure" is Pascal.

 The densest substance on the Earth is Osmium.

 A camera uses a convex lens to form an image.

 CNG stands for Compressed Natural Ga

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Zoology

Zoology The study of animals is known as zoology. The word zoology is derived from a Greek word’ ’Zion’’ and logos which means knowledge of animals. I n this branch we deals with structure, distribution and classification of animal are studied. History www.ntsteacher.com Conrad Gesner is known as the father of modern zoology. Modern zoology contain the study of animals from ancient to modern times and the role of Aristotle and Galen is very common in the history of zoology. The ancient work of this famous scientist is very important in zoology history. The work of Carl Linnaeus and Buffoon is very important in the diversity of life and the fossil record as well as the development of organisms. In 18 th and 19 th centuries, zoology became professional scientific branch. The interaction between organism and environment was studied by Alexander von Humboldt. Charles Darwin The work of Charles Darwin Is important in the branch of zoology. The branch em...

Phospholipid Bilayer Structure

Plasma Membrane Plasma membrane is also known as cell membrane. Plasma membrane contain 60 to 80% protein. It contain 20 to 40% lipids and little amount of carbohydrates. Plasma membrane is permeable or selective permeable. Fluid model was most accepted as compared to other models. Functions It play important role in transport of material from inside to outside the body by active transport system which means the movements of material from lower to higher direction by using ATP molecules. Through plasma membrane only small molecules like gas, water or glucose molecules move. It also protect from outer toxic material. Composition It is composed of phospholipids layer that contain Cholesterol which make the membrane fluid consistent and Protein. Phospholipids composed of glycerol, two fatty acids and a phosphate group.

blue whale challenge

Blue Whale Real Story www.ntsteacher.com The blue whale game is also known as blue whale challenge is an internet game which exist in many countries of the world and it contain 50 tasks which complete in the 50 days period and the last task requiring the player to attempt suicide. This processes of breached whales which is linked to attempt suicide. This game start in 2013 from Russia F57 which is called death group. A student Philip Budeikin who was expelled from his university statted that his purpose was to clean the sucity by pushing to sucide those he deemand as having no value. In 2016, Russia Blue whale came into boarder use among youngers after a joutnalist brought attention to it through an article that linked several unrelated sucide victims which was related to the blue whale. In Russia, his founder Budeikin was arrested and pled guilty to inciting at least teenage girls to attempt sucide. Game Bases and Rules This game was based on the relationship bet...

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