Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Which is synthetic stimulant?

  1. Cocaine

  2. Amphitamine

  3. LSD

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

Synthetic drugs are those which are not natural and are created by processing chemical ingredients. Amphetamines is one such drug. Amphetamines affect the activity of the nervous system. They speed up the messages between the body and the brain.
Therefore, the correct answer is option B.

Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

The factor responsible for cirrhosis of liver is 

  1. Sugar

  2. Hepatitis B

  3. Alcoholism

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cirrhosis of liver is characterized by replacement of liver tissue by fibrosis (scar tissue) and regenerative nodules (or lumps that occur due to attempted repair of the damaged tissue). Cirrhosis is most commonly caused by alcoholism, hepatitis-B, hepatitis-C and fatty liver disease. 

Non-alcoholic fatty liver disease is due to a number of reasons, including being overweight, diabetes, high blood fats, and high blood pressure.

Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Which one of the following is a matching pair of a drug and its category?

  1. Amphetamines and stimulant

  2. Lysergic acid dimethyl amide and narcotic

  3. Heroin and psychotropic

  4. Benzodiazepam and pain killer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Amphetamines are stimulants that increase the activity of the central nervous system. These are basically a kind of drugs that increase the activity of chemicals in the brain. So they are used to have fun, forget problems, celebrate, relieve boredom and to stay alert.

So, the correct answer is 'Amphetamines and stimulant'.

Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Cirrhosis of liver is caused by the chronic intake of

  1. Opium

  2. Alcohol

  3. Tobacco

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

Cirrhosis is an abnormal liver condition in which there is irreversible scarring of the liver. The main causes are sustained excessive alcohol consumption, viral hepatitis B and C, and fatty liver disease, however, there are many possible causes. People with cirrhosis may develop jaundice (yellowing of the skin, eyes and tongue), itching and extreme tiredness. So, the correct answer is option B.

Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Korsakoff's syndrome is related to

  1. Alcohol abuse

  2. Drug abuse

  3. Smoking abuse

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Korsakoff's syndrome is caused by lack of thiamine (vitamin B$ _{1}$), which affects the brain and nervous system. People who drink excessive amounts of alcohol are often thiamine deficient. This is because many heavy drinkers have poor eating habits and their diet does not contain essential vitamins and alcohol can interfere with the conversion of thiamine into the active form of the vitamin (thiamine pyrophosphate). Alcohol can inflame the stomach lining, cause frequent vomiting and make it difficult for the body to absorb the key vitamins it receives. Alcohol also makes it harder for the liver to store vitamins. Although Korsakoff's syndrome is not strictly speaking a dementia, people with this condition can experience loss of short-term memory. 

Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Barbiturates are

  1. Tranquilisers

  2. Sedatives

  3. Opioids

  4. Stimulants
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Barbiturates are CNS (Central nervous system) depressants. They are sedative-hypnotic drugs as they reduce anxiety and excitement and induce sleep. They lower the functional and physiological activity that leads to drowsiness or sleep. Barbiturates are derivatives of barbituric acid. If they are taken in excess amount, they cause permanent damage to brain.
So, the correct answer is 'Stimulants'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Tea has a stimulant

  1. Tannis

  2. Caffiene

  3. Theophylline

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Tea has four stimulants, caffeine, theophylline, theobromine and L-theanine. Caffeine is a stimulant of CNS and reduce drowsiness or sleep. Theophylline and theobromine relaxes smooth muscles. They are also stimulants of heart and have mild diuretic effects. L-theanine is a psychoactive amino acid which improves the attention and functioning of brain.
So, the correct answer is 'Both B and C'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

The drug often used for reducing appetite is

  1. LSD

  2. Heroin

  3. Valium

  4. Amphetamine
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Amphetamine is a synthetic stimulant commonly known as pep pills or anti-sleep drugs. It is structurally similar to adrenaline. It is used in dope test for athletes. It is stimulant of CNS (central nervous system). It stimulates respiratory centre, suppress hunger and cause addiction. It is also used as anti-obesity drug because it reduces appetite and hence reduces weight.
So, the correct answer is 'Amphetamine'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Drugs which do not develop physiological dependence are

  1. Opiates

  2. Sedatives

  3. Stimulants

  4. Tranquilisers
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Stimulants are the drugs that stimulate nervous system and make a person more alert and active. They cause excitement and have pleasurable effects. They are swallowed, snorted or injected. These drugs include natural stimulants such as caffeine and cocaine and synthetic stimulants such as amphetamines. They do not cause true physiological dependence. The addiction is psychological and withdrawal causes anxiety, depression and restlessness.
So, the correct answer is 'Stimulants'.