PMS PAST PAPER HELD ON 04.04.2022The life of red blood cells is?
A) 45 days
B) 120 days
C) 125 days
D) 145 days
Red blood cells normally survive for about 120 days in the human body. After aging, they are removed mainly by the spleen and replaced by new cells produced in the bone marrow through hematopoiesis.
PMS PAST PAPER HELD ON 04.04.2022
A)
17th January
B)
17th May
C)
17th June
D)
17th July
The United Nations observes the International Day for Desertification and Drought on 17th June each year to raise awareness about land degradation, water scarcity, and sustainable land management practices around the world.
PMS PAST PAPER HELD ON 04.04.2022
A)
Assimilation of food
B)
Absorption of food
C)
Excretion of food
D)
Chewing of food
Mastication means chewing food in the mouth. This process breaks food into smaller pieces and mixes it with saliva, making swallowing easier and improving digestion by increasing the surface area for enzymes to act upon.
PMS PAST PAPER HELD ON 04.04.2022
A)
CaCO₃
B)
CaO
C)
CO₂
D)
Ca(OH)₂
When sodium bicarbonate (NaHCO₃), also known as baking soda, is heated, it decomposes and releases carbon dioxide gas (CO₂). The reaction also produces sodium carbonate and water, which is why baking soda is widely used in baking and fire extinguishers.
PMS PAST PAPER HELD ON 04.04.2022
A)
China
B)
Pakistan
C)
Afghanistan
D)
Tibet
Batura Glacier is located in Gilgit-Baltistan, Pakistan, within the Karakoram mountain range. It is among the largest and longest glaciers outside the polar regions and is an important freshwater source for the region.
PMS PAST PAPER HELD ON 04.04.2022
A)
Vitamins
B)
Carbohydrates
C)
Minerals
D)
Proteins
Most enzymes are proteins that act as biological catalysts in living organisms. They speed up chemical reactions necessary for digestion, metabolism, respiration, and many other cellular activities without being consumed themselves.
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