Tag: option a: neurobiology and behaviour

Quizzes (14) Questions (102)

Questions Related to option a: neurobiology and behaviour

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

An addictive drug prepared by heating with soda bicarb is

  1. Crack

  2. Speed ball

  3. Angel dust

  4. Smack
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Alcoholic beverages contain

  1. Methyl alcohol

  2. Ethyl alcohol

  3. Propyl alcohol

  4. A mixture of all of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
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'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Alcohol addiction

  1. Increases blood sugar

  2. Reduces blood sugar

  3. Leads to increased use of barbiturates

  4. Both B and C
Reveal answer Fill a bubble to check yourself
B Correct answer
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'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Alcoholics have reduced number of

  1. Erythrocytes

  2. Leucocytes

  3. Blood platelets

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Alcohol is

  1. Appetiser

  2. Gastric irritant

  3. Stimulates gastric secretions

  4. Speeds up digestion
Reveal answer Fill a bubble to check yourself
B Correct answer
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'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Hangover is due to accumulation of 

  1. Ethanol in liver

  2. Ethanol in lungs

  3. Acetaldehyde in body

  4. Formation of formaldehyde from acetaldehyde
Reveal answer Fill a bubble to check yourself
C Correct answer
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'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Psychedelic drug is a

  1. Cocaine

  2. Smack

  3. Speed ball

  4. Psilocybe
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

An alcoholic male develops

  1. Impotence

  2. Early sexual maturity

  3. Increased appetite

  4. Both B and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Alcohol can cause infertility in men. It lowers the amount of testosterone which is male sex hormone. Testosterone is secreted from Leydig cells of testis. It stimulates development of secondary sex organs and sexual characters. It also promotes spermatogenesis i.e. formation of sperms from germ cells. Low levels of testosterone causes low sperm count which leads to failure in conception by females. Hence, alcohol can cause infertility or impotence in males.
So, the correct answer is 'Impotence'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

An alcoholic woman has

  1. Reduced fertility

  2. Little menstruation

  3. Spontaneous abortion

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Alcohol alters the levels of oestrogen and progesterone in females. Oestrogen is the female sex hormone which regulates menstrual cycle and development of sexual characters in females. Progesterone maintains inner lining of uterus and makes it suitable for implantation. Alteration in the levels of these hormones cause irregularity in menstrual cycle. As the inner lining of uterus (endometrium) is not developed properly, little menstruation occurs because its the inner lining which sheds off and bleeding occurs.
So, the correct answer is 'Little menstruation'.
Multiple choice innate and learned behaviour option a: neurobiology and behaviour biology

Bone part that undergoes necrosis in alcoholics is

  1. Head of femur

  2. Shaft of femur

  3. Vertebrae

  4. Carpals
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Alcoholic persons suffer from a disease of necrosis of bone called osteonecrosis or avascular necrosis. It is the death of bone tissue due to which head of femur collapse. Alcohol can cause accumulation of fatty acids because it interferes with their breakdown. Accumulation of fatty acids in blood vessels can lead to decreased rate of blood supply to the bone tissue. This causes necrosis of head of femur.
So, the correct answer is 'Head of femur'.