Most Repeated Mcqs

Option: C
Explanation :No explanation is available for this question. To view user comments or add your comments please Click Here..

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: C
Explanation :No explanation is available for this question. To view user comments or add your comments please Click Here..

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: A
Explanation :Ptyalin is an enzyme that is part of your saliva and aids with digestion. Enzymes are compounds that help speed up chemical reactions. In the case of saliva, the enzymes help speed up reactions that break down the food you eat. Even before food makes it to your stomach it begins to break down, and enzymes help make the process go smoothly.
Ptyalin helps digestion by breaking down starches and glycogens as they enter your mouth. After the starches and glycogen are covered with saliva, they are broken down into maltose and glucose — simple sugars that can be used more readily by the body. After the ptyalin speeds up the chemical reaction that breaks down these molecules, it simply unbinds from them and binds to a different set of molecules. Ptyalin can be used again and again, and this is what allows us to continue eating starches and glycogen.

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: C
Explanation :In the 1960s a second type of polio vaccine, known as oral poliovirus vaccine (OPV) or Sabin vaccine, named for its inventor American physician and microbiologist Albert Sabin, was developed. OPV contains live attenuated (weakened) virus and is given orally.

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: A
Explanation :Polio vaccine, preparation of poliovirus given to prevent polio, an infectious disease of the nervous system. The first polio vaccine, known as inactivated poliovirus vaccine (IPV) or Salk vaccine, was developed in the early 1950s by American physician Jonas Salk. This vaccine contains killed virus and is given by injection. The large-scale use of IPV began in February 1954, when it was administered to American schoolchildren. In the following years, the incidence of polio in the United States fell from 18 cases per 100,000 people to fewer than 2 per 100,000.
Jonas Salk became a national hero when he allayed the fear of polio with his vaccine, approved in 1955. Although it was the first polio vaccine, it was not to be the last; Albert Sabin introduced an oral vaccine in the 1960s that replaced Salk’s.

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: C
Explanation :A biliary obstruction is a blockage of the bile ducts. The bile ducts carry bile from the liver and gallbladder through the Pancreas to the duodenum (Parts of the small intestine). Bile is a dark green or Yellowish brown fluid secreted by the liver to digest fats. After you eat the gallbladder releases bile to help in digestion and fat absorption. Bile also helps clear the liver of waste products.

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: D
Explanation :Seat of memory in human brain is located in Cerebellum, Cortex and Cerebrum. The Cerebrum is one correct answer, but it’s the cerebral cortex where that memory is held. So cortex is also a correct answer. On the other hand cerebellum holds other kinds off-memory, so that’s correct answer too.
The human brain is hugely interconnected but three major components can be identified:
I. The cerebrum
II. The cerebellum
III. The brain stem
Role of Cerebellum:-
The cerebellum plays an important role in balance and motor control. As a result cerebellum involved in some cognitive functions such as attention, language, emotional functions and in the processing of procedural memories.
Most importantly the cerebrum (or forebrain) makes up 75% of the brain by volume and 85% by weight. It is divided by a large groove, known as the longitudinal fissure, into two distinct hemispheres. The left and right hemispheres (“left” and “right” refer to the owner’s point of view, not an outside viewer’s) are linked by a large bundle of nerve fibres called the corpus callosum, further also by other smaller connections called commissures.
The cerebrum is covered by a sheet of neural tissue known as the cerebral cortex (or neocortex). Cerebral cortex envelops other brain organs such as the thalamus, the hypothalamus and pituitary gland.
Firstly thalamus evolved to help relay information from the brain stem and spinal cord to the cerebral cortex. Secondly pituitary gland control visceral functions, body temperature and behavioural responses such as feeding, drinking, sexual response, aggression and pleasure.
Role of Cerebral Cortex:-
The cerebral cortex plays a key role in memory, attention, perceptual awareness, thought, language and consciousness. It is divided into four main regions or lobes, which cover both hemispheres.
The frontal lobe involved in conscious thought and higher mental functions such as decision-making, particularly. This part of the frontal lobe known as the prefrontal cortex. In addition prefrontal cortex plays an important part in processing short-term memories and retaining longer term memories. Therefore The seat of memory in the human brain is located in Cerebellum, Cortex, Cerebrum

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: C
Explanation :The human skeleton is the internal framework of the human body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together. The bone mass in the skeleton reaches maximum density around age 21. The human skeleton can be divided into the axial skeleton and the appendicular skeleton. The axial skeleton is formed by the vertebral column, the rib cage, the skull and other associated bones. The appendicular skeleton, which is attached to the axial skeleton, is formed by the shoulder girdle, the pelvic girdle and the bones of the upper and lower limbs.
The human skeleton performs six major functions; support, movement, protection, production of blood cells, storage of minerals, and endocrine regulation.

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: A
Explanation :NATO founding treaty was signed in Washington D.C 4 April 1949 , NATO is the North Atlantic Treaty Organization. NATO is an intergovernmental military alliance between countries in North America and Europe.
NATO was formed following World War II. Its founding treaty was signed in Washington D.C. in 1949 by a dozen European and North American countries.
The 12 founding member countries of NATO are: Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, Netherlands, Norway ,Portugal, United Kingdom, United States

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: C
Explanation : NATO is the North Atlantic Treaty Organization. NATO is an intergovernmental military alliance between countries in North America and Europe.
NATO was formed following World War II. Its founding treaty was signed in Washington D.C. in 1949 by a dozen European and North American countries.
The 12 founding member countries of NATO are: Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, Netherlands, Norway ,Portugal, United Kingdom, United States

Click Here..

Please comment below with correct answer and it’s detail explanation.