General knowledge is not a named section of any CTET paper, but part of it sits inside two subjects. As per the CTET-September 2026 bulletin, Environmental Studies in Paper I has 30 questions: 15 on content and 15 on pedagogical issues. Its content themes are Family and Friends, Food, Shelter, Water, Travel, and Things We Make and Do. In Paper II, Social Studies/Social Science has 60 questions: 40 on History, Geography and Social and Political Life, and 20 on pedagogy. Science in Paper II has 20 content questions on food, materials, the world of the living, how things work, natural phenomena and natural resources. All of these follow the NCERT syllabus. GK24's topic-wise GK notes cover geography, Indian history, Indian polity, general science, and environment and ecology, in English and Hindi. In GK24's guidance, they help you revise facts after reading the NCERT chapter, not in place of it. They do not cover Child Development and Pedagogy, the languages, Mathematics or the pedagogy questions, which together make up most of each paper. The CTET page of this section holds the GK notes GK24 marks for CTET. State TETs set their own syllabus, so check the one you plan to take before relying on this mapping.
The pacemaker of the human heart is the ______.
The heartbeat is not started by a nerve from the brain; the heart generates its own rhythm, and the patch of specialised tissue that does so fastest sets the pace for the rest.
Read the full explanation →Which blood group is called the universal donor?
In the ABO system the antigens sit on the surface of the red blood cell and the antibodies float in the plasma.
Read the full explanation →Which of the following is the only artery in the human body that carries deoxygenated blood?
An artery is defined by direction, not by the kind of blood it holds: it carries blood away from the heart.
Read the full explanation →Name the filtration units of the excretory system in human.
The nephron is the structural and functional unit of the kidney, and each human kidney holds about one million of them.
Read the full explanation →The flap of cartilage that prevents food from entering the windpipe during swallowing is called the:
It is a leaf-shaped flap of cartilage at the root of the tongue that swings down and covers the opening of the windpipe every time food is swallowed, so that the bolus is guided into the oesophagus instead of the trachea; when it fails we choke and cough.
Read the full explanation →In human blood, carbon dioxide is transported mainly in which form?
Most of the carbon dioxide produced by the tissues enters the red blood cells, where the enzyme carbonic anhydrase combines it with water to form carbonic acid, which at once splits into hydrogen and bicarbonate ions; the bicarbonate then travels in the plasma to the lungs, where the reaction is…
Read the full explanation →Which muscle is chiefly responsible for breathing in human beings?
It is a dome-shaped sheet of muscle that separates the chest cavity from the abdomen, and when it contracts it flattens, which increases the volume of the chest, lowers the pressure inside the lungs and draws air in; the intercostal muscles between the ribs assist by lifting the rib cage…
Read the full explanation →How many lobes does the right lung of a human being have?
The right lung is divided into three lobes, an upper, a middle and a lower, while the left lung has only two, because the heart is tilted towards the left side of the chest and takes up room there; the left lung even carries a notch called the cardiac notch…
Read the full explanation →Hydrochloric acid secreted in the stomach performs which of the following functions?
The gastric glands secrete hydrochloric acid, which makes the contents of the stomach strongly acidic; pepsin can work only in such a medium, and the acid also kills most of the bacteria swallowed along with food.
Read the full explanation →Which part of the alimentary canal is the longest, and where is most of the food absorbed?
At roughly six to seven metres it is by far the longest part of the nine-metre alimentary canal, it is where digestion is completed by pancreatic and intestinal juices, and its inner wall carries millions of finger-like villi that give a vast surface for absorbing glucose, amino acids, fatty acids…
Read the full explanation →Bile helps in the digestion of fat although it contains no enzyme. What is its main action?
Bile is made in the liver, stored and concentrated in the gall bladder and poured into the duodenum, and it carries bile salts and bile pigments but not a single digestive enzyme.
Read the full explanation →Which enzyme present in saliva begins the digestion of starch in the mouth?
It is secreted by the three pairs of salivary glands and breaks starch into the smaller sugar maltose, which is why starch is the only class of food whose digestion actually begins in the buccal cavity.
Read the full explanation →Which of the following is the largest gland in the human body?
It is the largest gland as well as the heaviest internal organ of the human body, it lies in the upper right part of the abdomen, and its chief contribution to digestion is bile, which is stored in the gall bladder and emulsifies fat.
Read the full explanation →The process of taking oxygen rich air in the body is called ______.
Inhalation, also called inspiration, is the phase of breathing in which the diaphragm flattens and the intercostal muscles pull the ribs up and out, so the chest cavity enlarges, the pressure inside the lungs falls below the pressure of the atmosphere and oxygen rich air rushes in through the nostrils…
Read the full explanation →Which of the following works of Kalidasa is based on the context of the birth of Kartikeya, the son of God Shiva and Goddess Parvati?
The name itself means the birth of Kumara, that is Kartikeya, the son of Shiva and Parvati, and the poem tells how Shiva and Parvati were married and how their son was born to kill the demon Taraka.
Read the full explanation →Which of the following is an advantage of E-Commerce?
An online store is a website or an app and not a shop with shutters, so it can take orders at any hour of any day, and that round-the-clock selling is one of the clear gains of e-commerce.
Read the full explanation →Consider the Statements (A) and (B) about Mathura and choose the correct answer. (A) Mathura was important for travel and trade connecting north to east and south to west. (B) Mathura was centre for producing fine sculpture.
Mathura did stand on major trade routes, but those routes ran from the north-west to the east and from the north to the south, not from north to east and south to west as statement (A) puts it, so (A) is wrong as worded.
Read the full explanation →The concept of Intelligence Quotient or IQ was developed by ____
The German psychologist William Stern gave the term Intelligence Quotient in 1912, proposing that a child's mental age be divided by the actual age to express intelligence as a single number.
Read the full explanation →Which one of the following recommended the 'Three Language Formula'?
The Kothari Commission, which worked from 1964 to 1966, recommended the three language formula for schools, and the policy of 1968 later adopted it.
Read the full explanation →The non-metal used in the purple coloured solution applied on wounds as an antiseptic is
Iodine is the non-metal in the antiseptic painted on cuts and wounds, sold as tincture of iodine, which is a solution of iodine in alcohol.
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