Chemistry in Everyday Life Test

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Chemistry in Everyday Life Test - 47

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Question 1
1 / -0

Antihistamine are not helpful :

A
in curing nasal allergies

B
in treating rashes caused by itching

C
in bringing down acute fever

D
in vasodilation
Solution
Antihistamines are commonly used for:
- Inflammation of the nose and eyes Sneezing.
- Vasodilation-the dilatation of blood vessels, which decreases blood pressure
- Itching of the eyes, nose and throat.
- Runny nose
- To reduce the severity of the rash and itching associated with nettle-type rashes.
- To help with the rash and itching following insect stings or bites.
- To prevent motion sickness and other causes of feeling sick (nausea). Occasionally to treat severe morning sickness is pregnency.
- In the care of the terminally ill, for their sedating and antisickness effects. In the emergency treatment of severe allergic reactions.
Antihistamine interfere with the natural action of histamine by competing with histamine for binding sites of receptor where histamine exerts its effect.
Question 2
1 / -0

Drugs which bind strongly to the active site of an enzyme and do not depend upon the concentration of natural substrate are called as:

A
competitive inhibitors

B
non-competitive inhibitors

C
$$\beta$$-blockers

D
$$\alpha$$-blockers

Solution

Competitive inhibitors are the interruption of a chemical pathway owing to one chemical substance inhibiting the effect of another by competing with it for binding or bonding.
These drugs bind to active sites and do not depend on the concentration of natural substrate.
Question 3
1 / -0

The main cause of acidity in the stomach is :

A
release of extra gastric acids which decrease the pH level

B
indigestion and pain in large intestine

C
increase the pH level in stomach

D
release of extra bile juice which increases alkaline medium in stomach

Solution

An antacid is a substance which neutralises stomach acidity and is used to relieve heartburn, indigestion or an upset stomach.
Antacids contain alkaline ions that chemically neutralise stomach gastric acid, reducing damage and relieving pain.
Gastric acid is a digestive fluid formed in the stomach and is composed of hydrochloric acid ($$HCl$$), potassium chloride ($$KCl$$) and sodium chloride ($$NaCl$$). If gastric acid is released in the stomach the Ph level decreases and thereby increasing acidity in the stomach.
Question 4
1 / -0

Barbiturates acts as:

A
hypnotic i.e., sleep producing agents

B
non-narcotic analgesics

C
activator of neurotransmitters

D
antiallergic drugs
Solution
Tranquilizers are a class of chemical compounds used for the treatment of stress, and mild or even severe mental diseases. These relieve anxiety, stress, irritability or excitement by inducing a sense of well-being. They form an essential component of sleeping pills.
Derivatives of barbituric acid viz., veronal, amytal, nembutal, luminal and seconal constitute an important class of tranquilizers. These derivatives are called barbiturates. Barbiturates are hypnotic, i.e., sleep producing agents. Some other substances used as tranquilizers are valium and serotonin.
Question 5
1 / -0

Which of the following will not act as a tranquilizer?

A
Equanil

B
Analgin

C
Meprobamate

D
Chlordiazepoxide
Solution
Tranquilizers are a class of chemical compounds used for the treatment of stress, and mild or even severe mental diseases. These relieve anxiety, stress, irritability or excitement by inducing a sense of well-being. They form an essential component of sleeping pills.
Some tranquilizers namely, chlordiazepoxide and meprobamate, are relatively mild tranquilizers suitable for relieving tension. Equanil is used in controlling depression and hypertension.
Analgin is a medicine used mainly for pain management and treating chronic or traumatic pains in the body. Apart from that it also has use in relieving fever, and treatment of respiratory and gastroenteritic diseases.
Question 6
1 / -0

Drugs that bind to the receptor site and inhibit its natural function are called:

A
agonistic drugs

B
antagonistic drugs

C
antimicrobial drugs

D
allosteric drugs

Solution

Drugs that bind to the receptor site and inhibit its natural function are called antagonistic drugs. These are useful when blocking of message is required.
Question 7
1 / -0

Which is correct about saccharin?

A

B
It is $$550$$ times sweeter than sugar

C
It is used as sweetening agent

D
All of these

Solution

It is the molecular structure of saccharin. Sodium saccharin (benzoic sulfimide) is an artificial sweetener with effectively no food energy. It is about 500-600 times as sweet as sugar but has bitter or metallic after taste, especially at high concentration. Saccharin is used to sweeten products such as drinks, candies, cookies and medicines.
Question 8
1 / -0

The sweeteners value of aspartame in comparison to cane sugar is:

A
550

B
100

C
600

D
2000
Solution
- Sugar substitutes are substances that are used in place of sweeteners with sugar (sucrose) or sugar alcohols. They may also be called artificial sweeteners.
- Natural sweeteners add to calorie intake and therefore many people prefer to use artificial sweeteners.
- Aspartame is the most successful and widely used artificial sweetener. It is roughly 100 times as sweet as cane sugar. It is methyl ester of dipeptide formed from aspartic acid and phenylalanine. Use of aspartame is limited to cold foods and soft drinks because it is unstable at cooking temperature.
Question 9
1 / -0

The use of aspartame is limited to cold foods and drinks because:

A
it is unstable to heat and decomposes at cooking temperature

B
it is 500 times sweeter than cane sugar

C
it becomes bitter at cooking temperature

D
it reacts with the food at cooking temperature
Solution
Sugar substitutes are substances that are used in place of sweeteners with sugar (sucrose) or sugar alcohols. They may also be called artificial sweeteners.
Aspartame is the most successful and widely used artificial sweetener. It is roughly 100 times as sweet as cane sugar. It is methyl ester of dipeptide formed from aspartic acid and phenylalanine. Use of aspartame is limited to cold foods and soft drinks because it is unstable at cooking temperature.
Question 10
1 / -0

Aspartame, the artificial sweetener is made by a dipeptide of the amino acid, ______________.

A
aspartic acid and phenylalanine

B
aspartic acid and phenylhydrazine

C
alanine and glycine

D
aspartic acid and glutamic acid
Solution
Aspartame is the most successful and widely used artificial sweetener. It is roughly 100 times as sweet as cane sugar. It is methyl ester of dipeptide formed from aspartic acid and phenylalanine. Use of aspartame is limited to cold foods and soft drinks because it is unstable at cooking temperature.
Various artificial sweeteners are Aspartame,Alitame,Saccharin,Sucrolose etc.

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Re-Attempt Weekly Quiz Competition

Chemistry in Everyday Life Test - 47

Result

Chemistry in Everyday Life Test - 47

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SHARING IS CARING

Question 1

in curing nasal allergies

in treating rashes caused by itching

in bringing down acute fever

in vasodilation

Solution

Question 2

competitive inhibitors

non-competitive inhibitors

$$\beta$$-blockers

$$\alpha$$-blockers

Solution

Question 3

release of extra gastric acids which decrease the pH level

indigestion and pain in large intestine

increase the pH level in stomach

release of extra bile juice which increases alkaline medium in stomach

Solution

Question 4

hypnotic i.e., sleep producing agents

non-narcotic analgesics

activator of neurotransmitters

antiallergic drugs

Solution

Question 5

Equanil

Analgin

Meprobamate

Chlordiazepoxide

Solution

Question 6

agonistic drugs

antagonistic drugs

antimicrobial drugs

allosteric drugs

Solution

Question 7

It is $$550$$ times sweeter than sugar

It is used as sweetening agent

All of these

Solution

Question 8

550

100

600

2000

Solution

Question 9

it is unstable to heat and decomposes at cooking temperature

it is 500 times sweeter than cane sugar

it becomes bitter at cooking temperature

it reacts with the food at cooking temperature

Solution

Question 10

aspartic acid and phenylalanine

aspartic acid and phenylhydrazine

alanine and glycine

aspartic acid and glutamic acid

Solution

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