Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

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

Which of the following combination of drugs has a dramatic rapid increase in sedative effect?

  1. Alcohol $+$ Antihistamines

  2. Alcohol $+$ Benzodiazepines

  3. Alcohol $+$ Aspirin

  4. Amphetamine $+$ Insulin
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Mixing drugs can have numerous detrimental effects. A common method of drug abuse involves mixing benzodiazepines with alcohol. They are abused together because both sedatives like benzodiazepines and alcohol are central nervous system depressants, using them together can cause excessive sedation.
So, the correct option is 'Alcohol + Benzodiazepines'.

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

Cannabinoid receptors present principally in the

  1. Heart

  2. Brain

  3. Liver

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

Cannabinoid receptors are those receptors which are mainly present in the brain but are also present in nearly all the organs of the body. They are the receptors that are responsible for the physiological functions as well as the functioning of the body. They are primarily found in the nervous system and brain region.

So, the correct option is 'Brain'.

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

In an epileptic patient,doctor administer a $GABA$ facilitatory  drug. After considerable time fits are absent in the patient.What would be the probable mechanism of that drug 

  1. It cause blocking of neurotransmitter at synaps and forms a complex

  2. It desensitize post synaptic membrane for neurotransmitter

  3. It inhibits $Na^+-K^+AT$ pase pump

  4. It cause hyperpolarisation of post synaptic membrane and generate IPSP
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
A GABA receptor agonist is a drug that is an agonist for one or more of the GABA receptors, producing typically sedative effects, and may also cause other effects such as anxiolytic, anticonvulsant, and muscle relaxant effects. 
So the correct option is 'It causes blocking of neurotransmitter at synapses and forms a complex'.
Multiple choice biology human health and disease drug, tobacco and alcohol consumption addiction and dependence community health and hygiene

Drug that increases cardiovascular effects is?

  1. Nicotine $+$ Cocaine

  2. Benzodiazepine $+$ Barbitunate

  3. Barbiturates $+$ Novacaine

  4. Insulin $+$ amphetamine
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nicotine and cocaine are both stimulants that increase heart rate and blood pressure, leading to synergistic cardiovascular effects. Other combinations listed involve depressants or mixtures that do not specifically target cardiovascular enhancement as their primary interaction.

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

Anaemia in alcoholics may be due to deficiency of

  1. Vitamin A

  2. Vitamin D

  3. Folic acid and vitamin B$ _{12}$

  4. Vitamin C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Chronic alcohol consumption interferes with the absorption and metabolism of essential nutrients, particularly B vitamins. Folic acid and vitamin B12 deficiency are common causes of megaloblastic anaemia in individuals with alcohol use disorder.

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

In an alcohol addict

  1. The blood sugar level is low

  2. The blood sugar level is high

  3. The blood sugar level is normal

  4. The sugar absorption is impaired
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Excessive alcohol consumption causes chronic inflammation of the pancreas i.e. pancreatitis, which impairs its ability to secrete insulin. Insulin is a hormone necessary for maintaining the normal concentration of glucose in the blood. It promotes the conversion of glucose to glycogen i.e. glycogenesis for storage in liver and muscle cells. Deficiency of insulin raises the blood sugar glucose and may lead to insulin-dependent diabetes mellitus. Thus the correct answer is option B.

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

Cardiomyopathy is associated with

  1. Occassional alcohol consumption

  2. Moderate alcohol consumption

  3. Chronic alcohol consumption

  4. Insufficient alcohol consumption
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cardiomyopathy is a disease of abnormal heart muscle. The heart becomes enlarged ann it is harder for the heart to pump and deliver blood to the rest of the body. The excessive consumption of alcohol is one of the causes of cardiomyopathy.
So, the correct answer is option C.

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

Consumption of methanol can result in blindness; Since it

  1. Inhibits neurotransuitter GABA

  2. Is released from retina

  3. Generally damages optic nerve

  4. Is stored in cornea and tear glands
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The consumption of methanol causes 'Toxic Optic Neuropathy' (TON). It is caused when the optic nerve is damaged by toxin which leads to visual impairment. This condition often presents as a painless, progressive, bilateral, symmetrical visual decline with variable optic nerve head damage. So, the correct answer is option C.

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

Continuous and excessive intake of alcohol causes

  1. Wernicke-Korsakoff syndrome

  2. Fatty liver 

  3. Cirrhosis and hypertension

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Laenec syndrome is Laennec cirrhosis which is a disease of the liver in which the normal lobular architecture is lost.
Fatty liver syndrome is a reversible condition wherein large vacuoles of triglyceride fat accumulate in liver cells via the process of steatosis.
Cirrhosis is a stage of scarring/fibrosis of the liver caused by many liver diseases.
Thus, the correct answer is option (D), 'All of the above'.

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

Peripheral vascular disease is most common in smokers which can lead to

  1. Gangrene

  2. Thrombosis

  3. Embolism

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Peripheral vascular disease is commonly used to refer to peripheral artery disease, meaning narrowing or occlusion by atherosclerotic plaques of arteries outside of the heart and brain.
Risk factors for peripheral artery disease include elevated blood cholesterol, diabetes, hypertension and smoking. Complications of peripheral artery disease include sores that do not heal, ulcers, gangrene or infections in the extremities. A peripheral vascular disease that affects the veins include deep vein thrombosis, varicose veins. Pulmonary embolism is also caused by the blood clot due to peripheral vascular disease.
So, the correct answer is option D.