Tag: science of kitchen

Questions Related to science of kitchen

Rita put small piece imli on her tongue. Which of the following taste did she feel?

evs science of kitchen sense of touch, smell and taste types of taste components and importance of food

  1. Sweet

  2. Sour

  3. Bitter

  4. Salty

Show answer
Correct Option: B
Explanation:
  • The upper surface of the tongue has small projections called papillae, some of which bear taste buds.
  • About 50 -150 taste cells are found in a taste bud. These cells detect all 4 tastes i.e sweet, sour, salty and bitter.
  • The sour taste of imli is perceived by the taste buds due to the presence of an antioxidant called tartaric acid. 
  • Hence when Rita put small piece imli on her tongue.she feels sour taste.
  • So, the correct answer is 'Sour'.

How does garlic taste?

evs science of kitchen sense of touch, smell and taste types of taste components and importance of food

  1. Sweet

  2. Sour

  3. Bitter with a pungent smell

  4. Salty

Show answer
Correct Option: C
Explanation:
A. Sweet occupies tip of the tongue and detects sugars like jaggery.
B. Sour occupies the sides of the tongue and detects acidity like in lemon, orange, grape.
C. Bitter occupies the base of the tongue and detects unpleasantness like in caffeine, nicotine, bitter gourd. Garlic taste bitter with a pungent smell from mouth.
D. Salty occupies tips and sides of the tongue and detects sodium chloride. 
So, the correct answer is 'Bitter with pungent smell'.

Tamarind tastes 

evs science of kitchen sense of touch, smell and taste types of taste components and importance of food

  1. Sweet

  2. Sour

  3. Salty

  4. Bitter

Show answer
Correct Option: B
Explanation:
A. Sweet occupies tip of the tongue and detects sugars like jaggery.
B. Sour occupies the sides of the tongue and detects acidity like in lemon, orange, grape, tamarind.
C. Salty occupies tips and sides of the tongue and detects sodium chloride.
D. Bitter occupies the base of the tongue and detects unpleasantness like in caffeine, nicotine, bitter gourd.
So, the correct answer is 'Sour'.

Sense of smell helps you to get the complete taste of food.

evs science of kitchen sense of touch, smell and taste types of taste components and importance of food

  1. True

  2. False

Show answer
Correct Option: A
Explanation:
  • Specific chemicals in solution pass into the taste bud through the taste pore to come in contact with the protein receptor sites on the microvilli of the gustatory receptor cells.
  • The latter set up nerve impulses in the sensory nerve fibers. The nerve fibers transmit the impulses to the taste center in the brain where the sensation of taste arises.
  • The facial nerve serves the anterior two-thirds of the tongue, the glossopharyngeal nerve serves the posterior one-third of the tongue. 

So, the correct answer is 'True'.

The taste of jaggery is  

evs science of kitchen sense of touch, smell and taste types of taste components and importance of food

  1. Sour

  2. Bitter

  3. Sweet

  4. Salty

Show answer
Correct Option: C
Explanation:
A. Sour occupies the sides of the tongue and detects acidity like in lemon, orange, grape.
B. Bitter occupies the base of the tongue and detects unpleasantness like in caffeine, nicotine, bitter gourd.
C. Sweet occupies tip of the tongue and detects sugars like jaggery.
D. Salty occupies tips and sides of the tongue and detects sodium chloride. 
So, the correct answer is 'Sweet'.

Tomato is a juicy fruit which tastes sweet and sour.

evs science of kitchen sense of touch, smell and taste types of taste components and importance of food

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

  • Tomato juice's earthy flavour at normal pressure, with cabin pressure it becomes sweeter, fruity, even. 
  • Additionally, tomatoes are rich in flavour known as umami, a taste that is thought of by most as very savoury and pleasant. Hence, Tomato is a juicy fruit which tastes sweet and sour.
So, the correct answer is 'true'.

Which of the following is the renewable source of energy?

components and importance of food science of kitchen evs

  1. Ethanol

  2. Jatropa plant

  3. Bagasse

  4. All of the above

Show answer
Correct Option: D
Explanation:
  • Renewable energy sources are energy sources that are always being replenished. They can never be depleted. Some examples of renewable energy sources are solar energy, wind energy, hydropower, geothermal energy, biomass energy, ethanol, jatropha plant, and bagasse.
  • Ethanol, derived from plant material, is a renewable energy source because the production and combustion of ethanol complete a cycle.
  • The oil from Jatropha plants is mainly converted into biodiesel for use in diesel engines(biodiesel).
  • Bagasse is the dry pulpy residue left after the extraction of juice from sugar cane. Bagasse is usually combusted in furnaces to produce steam for power generation. 
  • Hence ethanol, jatropha plant and Bagasse are the renewable sources of energy.
  • So, the correct answer is 'All the above'.

Mark the correct option with respect to composition of biogas.

components and importance of food science of kitchen evs

  1. $50-70\%$ $H _2$

  2. $30-40\%$ $CO _2$

  3. $95\%$ $CH _4$

  4. $10\%$ CO

Show answer
Correct Option: B
Explanation:

The composition of biogas is :

50-75% - Methane.
20-40%- Carbon dioxide.

So, the correct answer is "30-40% CO2".

Which of the following mirror is the best for making solar cooker?

components and importance of food science of kitchen evs

  1. Concave mirror

  2. Convex mirror

  3. Plane mirror

  4. Both (a) and (b)

Show answer
Correct Option: A

Which gas is present predominantly in biogas?

components and importance of food science of kitchen evs

  1. Methane

  2. Ethane

  3. Butane

  4. Propane

Show answer
Correct Option: A
Explanation:
  • Biogas is a mixture of gases produced by the breakdown of organic matter in the absence of oxygen. It is produced by anaerobic digestion with methanogen or anaerobic organisms, which digest material inside a closed system, or fermentation of biodegradable materials.
  • Biogas is primarily methane ($CH _4$) and carbon dioxide ($CO _2$) and may have small amounts of hydrogen sulfide ($H _2$S), moisture and siloxanes.
  • Hence Methane is present predominantly in biogas.
  • So, the correct answer is 'Methane'.