Taste Flashcards

1
Q

Taste sense are is under what sense

A

Chemosensory receptors there are five primary sense of tastes umam, sweet, sour, bitte, salty

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2
Q

Tasting involves the

A

Combination of all the number of the receptors that are stimulated

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3
Q

Acid in food give off the

A

Sour taste

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4
Q

Salty tastes

A

Is due to positive ions like Na Ca

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5
Q

Sweet taste is

A

Group of organic substance like aldehyde, ketones, ester, sugars in food

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6
Q

Foods that contain nitrogen, alcolody, nicotine

A

Give off the bitter taste

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7
Q

Glutamate is associated with

A

Umami

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8
Q

For the substance in the mouth to make contact with receptor

A

The substance must be dissolved in water or saliva

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9
Q

Taste bud

A

Contain the receptor or house the receptor

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10
Q

The taste bud

A

Are house in large papillae on tongue, has fungi form circumvallate form , and foliate form

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11
Q

Gustatory cell

A

Where the receptor for taste are located on the microvilli named gustatory cell, which is synaptically linked to nerves fiber , sensory fiber, cranial nerve where signal is carried to the sensory cortex partial lobe for interpretation…..and this are not fixed they’re placed

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12
Q

Sustentacular cells

A

These are supportive cells and anchoring cells, these hold the gustatory cell in place to maximize their exposure to the substance. These are specialized for various chemoreceptors

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13
Q

Describe the signal transduction of salt and sour

A

The chemical will bind to its receptor, which will lead to ionization effect, ionotropic causes a channel to open that are previously closed of Na or hydrogen, and pumps Na out thus causing depolarization of the cell causing the influx of ca to have a voltage effect of ca, ca acts a secondary messenger trigger excocytosis of serotonin and the signal is carried away by cranial fiber

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14
Q

The neurotransmitter release for umami is

A

ATP

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15
Q

Describe the sweet and bitter transduction

A

The stimulant bind with a G protein called gusducin similar to transducin which leads to the activation of the secondary messenger cAMP and IP3 that can trigger the elevation of ca, where the the SER release more ca causing the release of neurotransmitter thus depolarization the cranial nerve depending on the side of the tongue

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16
Q

Cranial nerve 7

A

Front of the tongue (facial)

17
Q

Cranial nerve 9

A

Back of the tongue glosopharingia

18
Q

Cranial nerve 10

A

Vagus base of the tongue

19
Q

Cranial nerve 7, 9,10 house

A

The afferent fiber

20
Q

Taste preference

A

It is base on need and experience and it is controlled by the nervous system