The elements that plants absorb from soil, air and water for growth and nutrition are called—
- aenzymes
- bnutrients
- chormones
- dvitamins
217 questions · 24 sections
The elements that plants absorb from soil, air and water for growth and nutrition are called—
Approximately how many inorganic nutritional elements have been identified in plants?
How many nutrients out of the identified ones are essential for normal growth of plants?
The 16 nutrients required for normal growth, physiological activities and reproduction of plants are collectively called—
Nutrient elements consumed by plants in large quantities for growth are called—
How many macronutrients do plants use?
Which of the following is NOT a macronutrient for plants?
How many micronutrients do plants use?
Which of the following is a micronutrient for plants?
Which of the following is NOT a micronutrient?
Plants absorb carbon and oxygen mainly from—
Plants obtain hydrogen from—
In which form do plants absorb mineral salts from the soil?
Nitrogen is an essential element of—
The formation of chlorophyll molecule and photosynthesis is hampered if a plant lacks—
Which element plays an important role in opening and closing of stomata?
Phosphorus is a structural component of—
Iron is the structural component of which compound required for aerobic respiration?
Urea is used as a chemical fertilizer mainly to supply—
Triple super phosphate (TSP) supplies which nutrient to plants?
Muriate of potash supplies which element?
Which micronutrient is needed to construct and maintain chloroplasts?
Which micronutrient is essential for the fixation of nitrogen by microorganisms?
Boron plays a role in the transportation of—
Chlorine is necessary for the growth of root and stem of which plant?
Copper plays an important role in the normal growth of—
The condition of leaves becoming yellow due to lack of chlorophyll formation is called—
Consider the following statements about chlorosis:
Leaves turn purple and necrotic spots develop due to deficiency of—
In deficiency of which element do the tip and blade of leaf turn yellow with interveinal chlorosis and the apical and lateral buds die?
Young leaves face chlorosis and growing apical parts die due to deficiency of—
The death of leaf, stem and root tissue gradually from tip to bottom is called—
Dieback disease in plants is caused due to deficiency of—
Necrosis of meristematic tissue and brittle stems are symptoms of deficiency of—
If young leaves first turn pale, the stem becomes weak and short, this is due to deficiency of—
Chlorosis occurs deeply and rapidly in the middle of the veins due to deficiency of—
Substances that are digested and absorbed within the body and help in repair, supply nourishment, protect from diseases and produce heat and energy are called—
Which substance is essential for life and produces heat and energy when oxidized?
According to the principle of ingredients, foods are divided into how many main classes?
Which of the following helps mainly in growth and repair of the body?
Which food component helps mainly in producing energy?
Which component increases immunity power and enhances chemical reactions?
Which component, although not a nutrient, helps in bowel function?
Proteins are composed of carbon, hydrogen, oxygen and—
What percentage of nitrogen is present in protein?
Which is considered the only source of nitrogen in food?
Which of the following is a source of animal protein?
Pulses (dal), nuts and bean seeds are sources of—
Carbohydrates are composed of—
Glucose is found mainly in—
According to composition, carbohydrates are of how many types?
Sucrose and lactose are examples of—
Lactose is found in—
Which is an example of polysaccharide?
The human body can absorb carbohydrate only in the form of—
Fats are composed of—
Compared to carbohydrate or protein, fat contains how many times the calories?
Which is considered the best vegetable oil among the listed sources?
Daily fat requirement of a healthy adult person is—
Which vitamins are fat soluble?
Which vitamins are water soluble?
Which of the following is a source of vitamin A?
Vitamin C is mainly obtained from—
Yeast, husking rice, sprout gram and peas are mainly sources of—
Which is a source of calcium?
Which food is a good source of iron?
The main source of iodine is—
At least what percentage of human body weight is water?
Consider the following functions of water in the body:
Roughage or dietary fibre is mainly composed of—
Which of the following animals can digest cellulose?
Roughage helps in reducing the risk of—
In the ideal food pyramid, which food group is placed at the base?
Which group is placed at the apex of the ideal food pyramid?
In the ideal food pyramid, vegetables and fruits are placed—
According to the food pyramid, which should be eaten in the smallest quantity?
Which is a characteristic of a balanced diet?
Which group needs extra food besides what is mentioned in the adult chart?
According to the food value table, the energy value of 100 gm of rice is—
According to the food value table, what is the energy value of 100 gm of ghee or cooking oil?
Which of the following has the highest calorie value per 100 gm?
According to the chart, the energy value of 100 gm of egg is—
Drinking water should always be—
Goitre is mainly caused by deficiency of—
People of which regions tend to suffer more from goitre?
Night blindness occurs due to deficiency of—
The disease Xerophthalmia is caused by deficiency of—
Night blindness is which level of xerophthalmia?
In night blindness, which cells of the eye are damaged?
Which age group is most commonly affected by night blindness?
Rickets is caused by deficiency of—
Vitamin D is essential for the absorption of—
Cholesterol stored in human skin produces vitamin D with the help of—
The last stage of producing vitamin D from skin cholesterol occurs in the—
Anemia occurs due to deficiency of—
Which age group of women is most often affected by anemia?
Which symptom is NOT commonly seen in anemia?
Which is a type of anemia where taking normal dose of iron supplements may worsen the patient's condition?
Among the six nutrients, which produce energy?
The energy spent during rest, used by basic body functions like heart and respiration, is called—
The amount of energy required by a person depends on—
According to physics, how much energy is required to raise the temperature of 1 kg of water by 1°C?
The food calorie used by nutritionists is in fact equal to—
Approximately how many kilojoules equal 1 food calorie (1 kilocalorie)?
Mixed food contains—
While determining calorie value of food, the calorie value of vitamins, minerals and water is taken as—
How many kilocalories of energy are produced from 1 gram of carbohydrate?
How many kilocalories of energy are produced from 1 gram of protein?
How many kilocalories of energy are produced from 1 gram of fat?
If 20 gm chira contains 15.4 gm carbohydrate, 1.32 gm protein and 0.24 gm fat, what is the approximate net calorie?
An adult person usually needs how many food calories per day?
If kilocalorie intake is more than necessary, the excess is stored in the body as—
The popular formula used to calculate BMR is—
According to Harris Benedict's formula, BMR for female is—
For a 33-year-old woman of 165 cm height and 94 kg weight, the BMR is approximately—
For a person who is not working, daily calorie demand equals—
For a hard-working person with sufficient jumping, running and playing, daily calorie demand equals—
BMR controls the production of approximately what percentage of energy in our body?
The BMR value usually—
The formula for calculating BMI is—
According to BMI scale, the ideal range for good health is—
A BMI value below 18.5 indicates—
A BMI value of 25–29.9 indicates—
A BMI value of 30–34.9 represents—
A BMI above 40 indicates—
A man having 1.25 m height and 50 kg weight has a BMI of—
Which of the following diseases can be prevented through physical exercise?
Animals that take rest by day and remain active during night are called—
The process by which rotting of food can be resisted while keeping properties and food value intact is called—
Which of the following is an approved chemical for food preservation?
Which substance should NOT be used for food preservation as it is harmful?
The Romans suffered from poisonous lead because they—
Which adulterant is mainly used in textile industry but is sometimes wrongly used in ice-cream and candies?
Insecticides used in storage food and vegetables most adversely affect—
Carbide is mostly used for—
Food substances become absorbable in the body in how many ways?
Breaking food into small pieces by chewing is which kind of process?
The digestive system consists of—
The alimentary canal extends from—
Salivary juice contains an enzyme that helps in digestion, named—
Mucin in saliva mainly helps in—
Human children have how many temporary (baby) teeth?
By the age of 18 the total number of permanent teeth in humans is—
Which type of teeth is used for tearing and grasping food?
Premolars are specialized for—
The last two teeth of the gums are called—
An adult person has how many incisors in total?
The hardest component of a tooth is—
Both dentine and enamel are composed of calcium phosphate, calcium carbonate and—
The tooth remains attached to the gum by means of—
Food passes from the buccal cavity to the oesophagus through—
Food converted into pulp or semi-fluid mass in the stomach is called—
The small intestine is divided into how many parts?
Which of the following is NOT a part of the small intestine?
The bile duct from the gall bladder and the pancreatic duct open into the—
The finger-like projections inside the small intestine that absorb digested food are called—
The large intestine is divided into how many parts?
Which of the following is a part of the large intestine?
The small finger-like projection connected to the caecum is called—
How many pairs of salivary glands are there in humans?
Which pair of salivary glands is located in front of and below each ear?
The largest gland of the human body is—
The liver consists of how many incomplete lobes?
Which is sometimes called the "organic laboratory" of the body?
Bile is produced by the liver and stored in the—
Bile is—
Consider the following functions of the liver:
Which gland acts as both an exocrine and an endocrine gland?
Pancreatic juice contains the enzymes—
Insulin and glucagon, important hormones for glucose control, are secreted by the—
The juice secreted from gastric glands is called—
Salivary amylase begins to break carbohydrate into—
Forward movement of food through the alimentary canal due to alternate contraction and relaxation of muscles is called—
In which part of the alimentary canal does no digestion of food occur?
Which substance in the gastric juice destroys germs coming with food and converts inactive pepsinogen into active pepsin?
Pepsin is an enzyme that breaks—
Digestion of carbohydrates and fats does NOT occur in the—
Which constituent of bile emulsifies fat?
Lipase converts fat into—
Trypsin converts polypeptide into—
Amylase converts starch into—
Intestinal juice contains which enzymes?
The lacteal in each villus is a—
Fat droplets after absorption are mainly carried by—
The blood vessel that carries absorbed nutrients from the intestine to the liver is called the—
In the large intestine, mainly which substance is absorbed?
The foul smell of faeces is due to gases emitted by—
The process of converting digested food substances into the constituents of protoplasm is called—
Indigestion is medically called—
Which of the following is NOT a typical symptom of dyspepsia?
Dysentery is caused by—
Which is a typical symptom of dysentery?
Constipation is mainly caused by—
An ulcer occurring in the duodenum is called—
The main bacterial cause of peptic ulcer, as discovered by Warren and Marshall, is—
Robin Warren and Barry Marshall received the Nobel Prize in Medicine in—
The pH of hydrochloric acid in the stomach is approximately—
Appendicitis is the inflammation of the appendix attached to which part of the large intestine?
Which of the following is NOT a worm that lives in the human intestine?
Diarrhoea is medically defined as suffering loose motion at least—
In diarrhoea, the patient mainly loses—
Rice saline is prepared by mixing 1 litre of water, a pinch of salt and how much rice powder?
Approximately what percentage of deaths due to rota virus occur in deprived poor countries?
Which of the following works as a micronutrient in plants?
Chlorosis occurs due to—
Five-year-old Sanjana cannot clearly see the letters in books while studying at night. Which vitamin is deficient in Sanjana's body?
Sanjana's younger brother Sabuj's leg bones have bent. To prevent Sabuj's disease, he needs to eat more—
Which disease is caused by iodine deficiency?
Which disease occurs in pregnant women due to iron deficiency?
Why is the pancreas called a mixed gland?
The cause of 'die-back' disease in plants is deficiency of—
In Irfan Mia's garden the leaves, flowers and buds of flowering plants are falling off. The most likely deficient nutrient is—
The leaves of Gani Mia's paddy plants are turning yellow. The horticulturist will most likely advise application of fertilizer containing—
Tasfiq is 16 years old, 170 cm (1.70 m) tall and weighs 62 kg. His BMI is approximately—
Tasfiq is moderately industrious and plays with friends 2–3 days a week. To maintain his weight, his daily calorie demand equals—