Tag: windows of knowledge

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Questions Related to windows of knowledge

Multiple choice biology windows of knowledge human tongue organ of taste tongue : the organ of taste

The tongue of a person is exposed to a high salty taste then.

  1. The person learns to taste salty things better

  2. Loves tasting salty things

  3. Hates tasting salty things

  4. Fails to taste a less salty things just after the exposure
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When the tongue is exposed to a high concentration of a specific taste, such as salt, the taste receptors undergo temporary adaptation or desensitization. As a result, the threshold for detecting that same taste increases, causing the person to fail to taste a less salty substance immediately afterward.

Multiple choice biology windows of knowledge human tongue organ of taste tongue : the organ of taste

Identify the taste receptor of sweet taste.

  1. ENaC

  2. T2Rs

  3. PCKD channel

  4. T1R2 + T1R3
Reveal answer Fill a bubble to check yourself
D Correct answer
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 taste buds for "sweet" are on the tip of the tongue and have sweet receptors such as T1R2 + T1R3. These receptors have the ability to sense sweet taste and send signals to the brain.
  • So, the correct answer is 'T1R2 + T1R3.'.
Multiple choice biology windows of knowledge human tongue organ of taste tongue : the organ of taste

Loss of the sensation of taste is referred to as ____

  1. Dysosmia

  2. Ageusia

  3. Hypogeusia

  4. Asnosmia
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ageusia refers to the lost ability of tongue to taste, particularly the inability to detect sweetness, sourness, bitterness, saltiness, and umami (meaning "pleasant/savory taste"). It is sometimes confused with anosmia a loss of the sense of smell.