Tag: biology

Questions Related to biology

Antisleep pills are made of

innate and learned behaviour option a: neurobiology and behaviour biology

  1. Barbiturates

  2. Benzoidiazepines

  3. Amphetamines

  4. Both A and B

Show answer
Correct Option: C
Explanation:
Amphetamine is a synthetic stimulant commonly known as pep pills or anti-sleep drugs. It is structurally similar to adrenaline. Excess use of amphetamine can cause insomnia (lack of sleep). It is stimulant of CNS (central nervous system). It stimulates respiratory centre, suppress hunger and cause addiction. In ancient times, amphetamines drugs were used by soldiers to keep them awake.
So, the correct answer is 'Amphetamines'.

Which of the following is a synthetic stimulant?

innate and learned behaviour option a: neurobiology and behaviour biology

  1. Cocaine

  2. Amphetamine

  3. LSD

  4. Mescaline

Show answer
Correct Option: B
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. High doses of amphetamine cause sleeplessness and vomiting. Examples include Benzedrine, Methedrine and Dexedrine.
So, the correct answer is 'Amphetamine'.

A useful drug that damages gastric mucosa, if taken along with alcohol is

innate and learned behaviour option a: neurobiology and behaviour biology

  1. Valium

  2. Anthistamine

  3. Asprin

  4. Morphine

Show answer
Correct Option: C
Explanation:

Gastritis occurs when there is an imbalance between the acid, and the mucous produced, and the acid manages to erode and damage the stomach lining. Aspirin, which inhibits cyclooxygenase, is rapidly deacetylated to salicylate. Salicylate is toxic to cells and affects mucosal barrier function, reduces cytosolic adenosine triphosphate, stimulates sodium transport, and increases proton dissipation from surface epithelial cells. 

So the correct answer is 'Asprin'.

An addictive drug prepared by heating with soda bicarb is

innate and learned behaviour option a: neurobiology and behaviour biology

  1. Crack

  2. Speed ball

  3. Angel dust

  4. Smack

Show answer
Correct Option: A
Explanation:
Crack cocaine or crack is a crystal form of cocaine. It is prepared by heating cocaine with water and baking soda. First, cocaine is dissolved in hot water. Sodium bicarbonate i.e. baking soda is then added to the mixture. The solution is boiled and solids are separated out. The separated mixture is cooled and solids are cut into small pieces called rocks. Crack cocaine is smoked or may be injected intravenously for rapid effects.
So, the correct answer is 'Crack'.

Alcoholic beverages contain

innate and learned behaviour option a: neurobiology and behaviour biology

  1. Methyl alcohol

  2. Ethyl alcohol

  3. Propyl alcohol

  4. A mixture of all of the above

Show answer
Correct Option: B
Explanation:
Alcoholic beverages are produced by the distillation of ethanol. 
Ethanol or ethyl alcohol is produced by fermentation of fruits, vegetables or grains. 
There are different types of alcoholic drinks based on alcohol content. Alcohol is a depressant and reduces anxiety and produces euphoria (feeling of excitement). 
Alcohol if taken regularly can cause addiction and serious health problems.
So, the correct answer is 'Ethyl alcohol'.

Alcohol addiction

innate and learned behaviour option a: neurobiology and behaviour biology

  1. Increases blood sugar

  2. Reduces blood sugar

  3. Leads to increased use of barbiturates

  4. Both B and C

Show answer
Correct Option: B
Explanation:
Alcohol addiction or alcoholism is the dependency of a person on regular consumption of alcohol. People suffering from alcohol are obsessed with alcohol and can't resist to consuming it. Generally ethyl alcohol is consumed by alcoholic people. Alcoholism reduces sugar level in blood due to which nutrients supply to different tissues in body get reduced. 
So, the correct answer is 'Reduces blood sugar'.

Alcoholics have reduced number of

innate and learned behaviour option a: neurobiology and behaviour biology

  1. Erythrocytes

  2. Leucocytes

  3. Blood platelets

  4. All of the above

Show answer
Correct Option: D
Explanation:
Alcohol decreases the blood supply to bone marrow, the part of body where blood cells are formed. It also causes decrease in absorption  of nutrients in the body from the food. Nutrients like zinc, folic acid, iron etc. are required for formation of blood cells. Deficiency of these nutrients due to alcohol cause decline in red blood cells (erythrocytes). white blood cells (leucocytes) and platelets. This also leads to anaemia in alcoholic persons. Hence, all options are correct.
So, the correct answer is 'All of the above'.

Alcohol is

innate and learned behaviour option a: neurobiology and behaviour biology

  1. Appetiser

  2. Gastric irritant

  3. Stimulates gastric secretions

  4. Speeds up digestion

Show answer
Correct Option: B
Explanation:
Alcohol is a gastric irritant because it can cause many problems in gastrointestinal tract. Drinking alcohol can trigger production of more acid in the stomach which can cause burning sensation. It can also cause gastritis in which inflammation of lining of stomach occurs. Ulcers, the open sores in stomach lining can also occur due to acid in stomach. Drinking too much alcohol can cause reflux of acidic gastric juices in the oesophagus which cause a burning sensation and this condition is called heartburn. 
So, the correct answer is 'Gastric irritant'.

Hangover is due to accumulation of 

innate and learned behaviour option a: neurobiology and behaviour biology

  1. Ethanol in liver

  2. Ethanol in lungs

  3. Acetaldehyde in body

  4. Formation of formaldehyde from acetaldehyde

Show answer
Correct Option: C
Explanation:
Hangover is the experience of unpleasant effects in body (which may be physiological or psychological) after consuming alcohol. It occurs due to accumulation of acetaldehyde in the body. Acetaldehyde is formed from alcohol by the action of enzyme alcoholic dehydrogenase (ADH). It causes dizziness, dry mouth, headache weakness, mood changes etc. Dehydration also occurs as urine output is increased due to consumption of alcohol. 
So, the correct answer is 'Acetaldehyde in body'.

Psychedelic drug is a

innate and learned behaviour option a: neurobiology and behaviour biology

  1. Cocaine

  2. Smack

  3. Speed ball

  4. Psilocybe

Show answer
Correct Option: D
Explanation:
Psilocybe is a genus of gilled mushrooms from which psilocybin drug is obtained. Psilocybin is a psychedelic drug which affects behaviour, mood, thoughts and perceptions. It is a natural hallucinogen. Psilocybe mushrooms have hallucinogenic effects when eaten. It can also cause psychosis in which contact is lost with external reality. Other effects include anxiety and panic attacks. Synesthesia, a condition of mixed perception in which a person hears colours and sees sound, may also occur.
So, the correct answer is 'Psilocybe'.