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- Question 1 of 50
1. Question
Which was the first enzyme isolated in pure crystalline form?
Hint
Urease was the First Crystalline Enzyme and the Proof That Enzymes Are Proteins. The isolation and crystallization of urease by James Sumner, in 1926, provided a breakthrough in early enzyme studies.
- Question 2 of 50
2. Question
The process of digestion is helped by:
Hint
Enzymes play a key role in process of digestion. The human body makes enzymes in the digestive system, including the mouth, stomach, and small intestine. Digestive enzymes help the body break down carbohydrates, fats, and proteins from food. This is necessary to allow for the absorption of nutrients and to maintain optimal health.
- Question 3 of 50
3. Question
Which is the organ that excretes water, fat and various catabolic wastes?
Hint
The kidney is the organ that excretes water, fat and various catabolic wastes. The kidneys remove waste products called urea from the blood through tiny filtering units called nephrons. There are about one million nephrons in each kidney.
- Question 4 of 50
4. Question
Clove, the commonly-used spice, is obtained from the:
Hint
Cloves are commonly used as a spice. They are the dried flowers of the tree Syzygium aromaticum.
- Question 5 of 50
5. Question
What are the blood corpuscles that help to build up resistance against diseases?
Hint
Leukocytes are the blood corpuscles that help to build up resistance against diseases. White blood cells (WBCs), also known as leukocytes, are responsible for protecting the body from infection. As part of the immune system, WBCs circulate in the blood and respond to injury or illness.
- Question 6 of 50
6. Question
Which is the gland that holds the body’s thermostat?
Hint
Hypothalamus is the gland that holds the body’s thermostat. It is involved in different daily activities like eating or drinking, in the control of the body’s temperature and energy maintenance, and in the process of memorizing and in stress control. It acts as the body’s smart control coordinating center.
- Question 7 of 50
7. Question
How many chromosomes are found in a human ovum?
Hint
There are 23 chromosomes in a human ovum and 23 chromosomes in human sperm. Healthy humans have 23 pairs of chromosomes in which 22 pairs are autosomes and 2 are sex chromosomes. The ovum (female gamete) is formed by the meiosis due to which they have only the half number of chromosomes, which means 22 autosomes (11 pairs) and 1 sex chromosome.
- Question 8 of 50
8. Question
From which part of the plant ‘Hashish’ is obtained?
Hint
Hashish is a drug made by compressing and processing parts of the cannabis plant, typically focusing on flowering buds (female flowers) containing the most trichomes.
- Question 9 of 50
9. Question
Which organ of the body never rests?
Hint
The heart is the only organ in the body that never rests throughout the entire life.
- Question 10 of 50
10. Question
In which part of the eye lies the pigment that decides the colour of the eyes of a person?
Hint
A person’s eye color results from the pigmentation of a structure called the iris, which surrounds the small black hole in the center of the eye (the pupil) and helps control how much light can enter the eye. The color of the iris ranges on a continuum from very light blue to dark brown.
- Question 11 of 50
11. Question
Which of the following is true about ‘Terminator seeds’?
Hint
Terminator seeds, also called suicide seeds, contain genetically engineered properties to prevent multiplication. It is a seed that is genetically modified so that any crops grown from it do not produce fertile seeds. Because the crops produce sterile seeds, farmers need to buy a new batch of seeds every year rather than using the traditional farming method of saving, reusing and sharing seeds.
- Question 12 of 50
12. Question
The presence of what distinguishes a plant cell from an animal cell?
Hint
One of the major differences between plant and animal cells is the presence of chloroplasts. Plant cells have chloroplasts while animal cells don’t. Chloroplasts enable plants to perform photosynthesis to make food. Plant cells have a cell wall, but animal cells do not.
- Question 13 of 50
13. Question
Which of the following is most important for the growth of children up to the age of 14?
Hint
Protein is most important for the growth of children up to the age of 14 as during the teenage, children experience rapid changes in their physical development. Protein is a slow-digesting nutrient, which is needed for the repair and growth of muscles and tissues. It is also essential for the production of enzymes and hormones.
- Question 14 of 50
14. Question
Which of the following is not required for seed germination?
Hint
Sunlight is not required for seed germination. Light isn’t strictly necessary for germination in most plant species. All seeds need water, oxygen and suitable temperature to germinate.
- Question 15 of 50
15. Question
The longest cell in the human body is:
Hint
Nerve cell is the longest cell in the human body. It is made of billion neurons. The largest cell in the human body is ovum (egg cell). Smallest cell in the human body is gametes (sperm cell). The largest cells is an egg cell of ostrich.
- Question 16 of 50
16. Question
Which of the following is known as a bodybuilder?
Hint
Protein is known as a bodybuilder. It has a special role in bodybuilding because it contains the very building blocks of muscle tissue called amino acids. Protein is a slow-digesting nutrient, which is needed for the repair and growth of muscles and tissues.
- Question 17 of 50
17. Question
Which of the following tests helps in diagnosis of cancer?
Hint
A biopsy test is typically associated with the diagnosis of cancer. Doctors use biopsies to test whether abnormalities in the body are caused by cancer or by other conditions.
- Question 18 of 50
18. Question
During dehydration what is the substance that is usually lost by the body?
Hint
Dehydration is caused by not drinking enough fluid or by losing more fluid than you take in. During dehydration, Sodium chloride is the substance that is usually lost by the body. Fluid is lost through sweat, tears, vomiting, urine or diarrhea. Dehydration is almost invariably associated with some loss of salt (sodium chloride) as well.
- Question 19 of 50
19. Question
Which of the following is the main nitrogenous waste in humans?
Hint
Urea and uric acid are the two nitrogenous wastes that are secreted in urine. Urea is the main nitrogenous waste in humans. Urea serves an important role in the metabolism of nitrogen-containing compounds by animals. It is the main nitrogen-containing substance in the urine of mammals. A normal urea level in the urine is 12 to 20 grams over 24 hours.
- Question 20 of 50
20. Question
Which of the following is the largest living bird?
Hint
Ostrich is the largest living bird on the planet. With its long neck and brown plumage, the ostrich is the tallest and heaviest bird. An adult ostrich weighs up to 150 kilograms and has a maximum height of 6 feet.
- Question 21 of 50
21. Question
In which of the following generally hormone is not found?
Hint
In Bacteria generally hormone is not found but it can produce hormones that can affect host metabolism, immunity and behavior.
- Question 22 of 50
22. Question
The causative organism of dengue fever is:
Hint
Dengue viruses (DENV) are the causative organism of dengue fever. They are transmitted to humans through the bite of an infected Aedes species mosquito.
- Question 23 of 50
23. Question
Which of the following is considered to be the best cholesterol?
Hint
There are two main types of cholesterol: low-density lipoprotein (LDL), or “bad” cholesterol, and high-density lipoprotein (HDL), or “good” cholesterol. HDL cholesterol is considered to be the best cholesterol because it helps remove other forms of cholesterol from the bloodstream.
- Question 24 of 50
24. Question
Thalassemia is a hereditary disease. It affects:
Hint
Thalassemia is a hereditary disease which affects Blood. It is an inherited blood disorder characterised by less oxygen-carrying protein (hemoglobin) and fewer red blood cells in the body than normal.
- Question 25 of 50
25. Question
Which of the following represents a food chain involving a producer, a vegetarian and a non-vegetarian?
Hint
“Plant – Rabbit – Tiger” represents a food chain involving a producer, a vegetarian and a non-vegetarian.
- Question 26 of 50
26. Question
Aspirin is:
Hint
Aspirin is Acetylsalicylic acid. It is a nonsteroidal anti-inflammatory drug (NSAID) used to reduce pain, fever, or inflammation.
- Question 27 of 50
27. Question
Which of the following makes the skin layer impervious to water?
Hint
Keratin is a type of structural protein which makes the skin layer impervious to water. It is found on epithelial cells, which line the inside and outside surfaces of the body. Keratins help form the tissues of the hair, nails, and the outer layer of the skin.
- Question 28 of 50
28. Question
Two richest known sources of edible protein are:
Hint
Soybean and groundnut are the two richest known sources of edible protein. The protein content of soybeans is 36–56% and groundnut is 22-30% of the dry weight. Soybean protein is known as a complete protein as it provides all of the essential amino acids for human nutrition.
- Question 29 of 50
29. Question
Which of the following weeds has been found useful to check water pollution caused by industrial effluents?
Hint
The undesirable plants that grow along with the desirable plants are called weeds. Water hyacinth is useful to check water pollution caused by industrial effluents. It is observed that water hyacinth has the capability to reduce the pH of textile waste water from alkaline to neutral, COD and BOD reduction in the range of 40–70%, total solids with a maximum reduction of 50.64%. The reduction in pH further favoured microbial action to degrade COD and BOD in wastewater.
- Question 30 of 50
30. Question
Which of the following food crops has the maximum content of proteins?
Hint
Soybean is the richest known source of edible protein. The protein content of soybeans is 36–56% of the dry weight. Soybean protein is known as a complete protein as it provides all of the essential amino acids for human nutrition.
- Question 31 of 50
31. Question
The total number of vertebrae in a human being is:
Hint
Vertebrae is a series of bones that form the spinal column (backbone) of all vertebrates. The average person is born with 33 vertebrae that interact and connect with each other through flexible joints called facets. By the time a person becomes an adult most have only 24-26 vertebrae because some vertebrae at the bottom end of the spine fuse together during normal growth and development.
- Question 32 of 50
32. Question
On average, what percentage of human body has the element of oxygen?
Hint
By mass, about 96 percent of the human body is made up of just four elements: oxygen (65 percent), carbon (18.5 percent), hydrogen (9.5 percent), and nitrogen (3.3 percent). Oxygen (O) together with hydrogen form water, which is the primary solvent found in the body and is used to regulate temperature and osmotic pressure.
- Question 33 of 50
33. Question
BCG vaccination is to be given to a new-born child:
Hint
BCG (Bacille Calmette-Guerin) vaccination is to be given to a newborn child within six months. This vaccination provides consistent protection against tuberculosis (TB) disease. It is recommended for all babies soon after birth up to 1 year old (for some specific areas).
- Question 34 of 50
34. Question
The hybrid between horse and donkey is called:
Hint
The hybrid between horse and donkey is called Mule. Usually, it’s the male donkey (jack) mating with a female horse (mare) to produce a mule, which can come in either male or female. Due to the odd number of chromosomes, they can’t reproduce.
- Question 35 of 50
35. Question
Glaucoma is a disease of the:
Hint
Glaucoma is a disease of the eyes. It is a group of eye conditions that damage the optic nerve, the health of which is vital for good vision. This damage is often caused by abnormally high pressure in the eye.
- Question 36 of 50
36. Question
Human kidney disorder is caused by the pollution of:
Hint
Human kidney disorder is caused by the pollution of Cadmium. Heavy metals (mercury, lead, cadmium) are among the best-known environmental pollutants causing kidney disease.
- Question 37 of 50
37. Question
Dehydration in human body is caused due to the deficiency of:
Hint
Dehydration is a deficiency of water in the body. It occurs when the human body uses or loses more fluid than takes in, and the body doesn’t have enough water and other fluids to carry out its normal functions.
- Question 38 of 50
38. Question
Hamburger effect is otherwise known as:
Hint
Hamburger effect is otherwise known as Chloride shift. Chloride shift is a process which occurs in a cardiovascular system and refers to the exchange of bicarbonate (HCO3−) and chloride (Cl−) across the membrane of red blood cells (RBCs).
- Question 39 of 50
39. Question
Which among the following elements is found in maximum percentage in the human body?
Hint
By mass, about 96 percent of the human body is made up of just four elements: oxygen (65 percent), carbon (18.5 percent), hydrogen (9.5 percent), and nitrogen (3.3 percent). Oxygen (O) together with hydrogen form water, which is the primary solvent found in the body and is used to regulate temperature and osmotic pressure.
- Question 40 of 50
40. Question
Which among the following bears the smallest living cell?
Hint
Among the given options, Mollusc plasma bears the smallest living cell. Mycoplasma is the smallest living known cell. It is prokaryotic, devoid of a cell wall and can live without oxygen. It is pathogenic to both plants and animals.
- Question 41 of 50
41. Question
Which among the following fishes lives mostly in the ocean but during reproduction goes to fresh water stream?
Hint
Anadromous fish lives mostly in the ocean but during reproduction go to fresh water stream. Hilsa and Salmon are anadromous fish.
- Question 42 of 50
42. Question
Which among the following is a non-conventional source of energy?
Hint
Non-conventional energy (also known as Renewable energy) sources are sources that are renewed by natural processes on a continual basis. Energy generated by using wind, solar, small hydro, tides, geothermal heat and biomass is known as non-conventional energy. Hydroelectric power is a renewable energy source. It uses the energy of running water, without reducing its quantity, to produce electricity.
- Question 43 of 50
43. Question
Yawning occurs:
Hint
Yawning occurs when CO2 concentration in the blood is high, and Oxygen (O2) concentration is low. The yawn acts as a boost to the O2 levels.
- Question 44 of 50
44. Question
Which among the following living being has respiratory organ but does not have brain?
Hint
The starfish has respiratory organ but does not have brain. They have a complex nervous system that allows them to make a decision. This nervous system is centralized in the ring around the mouth.
- Question 45 of 50
45. Question
Which vitamin helps in blood coagulation?
Hint
Vitamin K helps in blood coagulation (clotting). It helps to make various proteins that are needed for blood clotting and the building of bones. Prothrombin is a vitamin K-dependent protein directly involved with blood clotting.
- Question 46 of 50
46. Question
Which of the following is correlated with blood pressure?
Hint
Adrenal (also known as suprarenal glands) are small, triangular-shaped glands located on top of both kidneys. Adrenal glands produce hormones that help regulate your metabolism, immune system, blood pressure, response to stress and other essential functions.
- Question 47 of 50
47. Question
Which of the following structures present in mammalian skin directly helps in regulating body temperature?
Hint
The primary function of sweat glands is to keep the core body temperature at approximately 37°C by releasing sweat in a hot environment or during physical activity. As the water in the sweat evaporates, the surface of the skin cools.
- Question 48 of 50
48. Question
Which of the following diseases usually spreads through milk?
Hint
Mycobacterium Bovis, a bacterial species of the M. tuberculosis complex, is a pathogen that primarily infects cattle. However, humans also can become infected, most commonly through the consumption of unpasteurized milk products from infected cows.
- Question 49 of 50
49. Question
Which are the largest fixator of solar energy?
Hint
Green plants are the largest fixator of solar energy. All green plants generate and transfer energy through the processes of photosynthesis and respiration.
- Question 50 of 50
50. Question
Which of the following is a correct description of ‘tissue culture’?
Hint
Tissue culture (micropropagation) is the growth of tissues or cells in an artificial medium separate from the parent organism. It is a technique in which fragments of plants are cultured and grown in a laboratory.