Tag: biology

Questions Related to biology

Identify the prominent adolescence disorder.

biology adolescence drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

  1. Anxiety

  2. Dizzyness

  3. Depression

  4. Both A and C

Show answer
Correct Option: D
Explanation:

Adolescence is marked by accelerated physical growth, development of reproductive organs and changes in functioning of the neuroendocrine system. It is observed that during adolescence, there is generally lack of sleep due to mood swings. Lack of sleep due to mood irregulation leads to Anxiety and Depression.

Thus, the correct answer is option D.

An adolescent is greatly influenced by __________ during this phase. 

biology adolescence drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

  1. Parents

  2. Teachers

  3. Peer group

  4. None of the above

Show answer
Correct Option: C

The study of the action of drugs is known as 

biology human health and disease drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

  1. Pharmacognosy

  2. Pharmacology

  3. Physiology

  4. Pharmaceutical chemistry

Show answer
Correct Option: B
Explanation:

Pharmacology is the branch of the study of drug action, in which considers the site of action of drug, toxicity, side effects on plasma half life concentration, excretory by products, etc.

Drugs which induce dreamy state of consciousness is ______________.

biology human health and disease drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

  1. Sedative

  2. Stimulant

  3. Depressant

  4. Hallucinogen

Show answer
Correct Option: D
Explanation:

 Hallucinogens cause optical illusion. Person loses all feelings of earthly existence of space and time.

So, the correct answer is 'Hallucinogen'

Dilation of blood vessels, increase in fat synthesis, low blood sugar and inflammation of stomach are due to the consumption of

biology human health and disease drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

  1. Tobacco

  2. Drug addiction

  3. Alcohol

  4. Tobacco and drug addiction

Show answer
Correct Option: C
Explanation:

Long-term alcohol abuse poses great dangers to an alcoholic's physical, mental, emotional, social and spiritual health. In addition to serious ramifications for the user's career, family and friends, alcoholism can cause irreversible damage to critical organs and body systems such as dilation of blood vessels, an increase in fat synthesis, low blood sugar and inflammation of the stomach. So, the correct answer is option C.

Which one is not a symptom of opium addiction?

biology human health and disease drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

  1. Slurred speech

  2. Slow respiration

  3. Dilation of pupil

  4. Drowsiness

Show answer
Correct Option: C
Explanation:
Opiates are derived from opium which is dried latex of unripen capsular fruits of Papaver somniferum (poppy plant). It has bitter taste and heavy smell. It is eaten and smoked. The effects of opiates are analgesic, narcotic and sedative. They slow down respiration, impair digestion, cause constriction of pupil of eye, cause nausea and vomiting, poor pronunciation of words (slurred speech) and drowsiness or feeling of sleep.
Hence, dilation of pupil is not a symptom of opium addiction.
So, the correct answer is 'Dilation of pupil'.

Charas of hasish is obtained from

biology human health and disease drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

  1. Leaves of Cannabis

  2. Resinuous secretion of flowering tops of female Cannabis

  3. Dried leaves of female Cannabis

  4. Resinuous secretion from bark of male plants of Cannabis

Show answer
Correct Option: B
Explanation:
Hashish is a hallucinogenic drug prepared from resin secreted from flowering tops of Cannabis sativa (hemp). The resin is dried and pressed to form small blocks which are then smoked. It is a powerful hallucinogen which can change mood, behaviour and thoughts. It cause hallucinations and make false imaginations. It produces a dream like state and can even cause loss of contact with external reality.
So, the correct answer is 'Resinous secretion of flowering tops of female Cannabis'.

Assertion: Charas is a psychoactive drug.

Reason: Charas contains THC of 25 to 60%.

biology human health and disease drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

  1. If both assertion and reason are true and the reason is the correct explanation of the assertion.

  2. If both assertion and reason are true but reason is not the correct explanation of the assertion.

  3. If assertion is true but reason is false.

  4. If the assertion and reason both are false.

  5. If assertion is false but reason is true.

Show answer
Correct Option: A
Explanation:
Answer is option A
Charas contains cannabinoids such as tetrahydrocannabinol (THC) in 25 to 60%. this allows Charas drug to have various psychological and physiological effects on the human body. Psyhological effect include emotional and psychological issues like apathy, a lack of motivation, depression, etc

Enzyme present in limited quantity in Asians for metabolism of alcohol is

biology human health and disease drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

  1. Alcohol dehydrogenase

  2. Succinate thiokinase

  3. Acetaldehyde dehydrogenase

  4. Both A and B

Show answer
Correct Option: C
Explanation:
Acetaldehyde dehydrogenase is the enzyme which converts acetaldehyde into acetate. Acetaldehyde is produced from the metabolism of alcohol by the enzyme alcoholic dehydrogenase. Acetaldehyde is toxic and its accumulation can cause hangover so it needs to be metabolized. It is converted into acetate by aldehyde dehydrogenase. Acetate is then converted into carbon dioxide and water. About 50% people of northeast Asia have a dominant mutation in the gene encoding for enzyme aldehyde dehydrogenase resulteing in decreased activity of this enzyme. So, Asians have this enzyme in limited quantity.
So, the correct answer is 'Acetaldehyde dehydrogenase'.

In alcoholics, liver cells come to accumulate fat. Fat formation is stimulated by

biology human health and disease drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

  1. Alcohol

  2. Acetaldehyde

  3. Thiamine deciciency

  4. Folic acid deficiency

Show answer
Correct Option: B
Explanation:
Alcohol is converted into acetaldehyde by alcoholic dehydrogenase. Consumption of too much alcohol affects liver and also cause hangover in which unpleasant physical and mental effects are seen due to accumulation of acetaldehyde. Acetaldehyde can lead to fatty liver syndrome because it stimulates the deposition of collagen in liver. This is called alcohol induced fibrosis. The cells of liver are replaced by fibrous tissue due to which liver hardens and dries up. This ultimately leads to liver failure.
So, the correct answer is 'Acetaldehyde'.