Tag: diseases and toxic substance

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Questions Related to diseases and toxic substance

Multiple choice zoology important and common human diseases diseases caused by changes in lifestyle diseases and toxic substance non-infectious diseases

Which one is not property of cancer cells 

  1. They show contact inhibition

  2. Divide in uncontrolled manner

  3. Compete with normal cells for vital nutrients

  4. Do not remain confined to area of formation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. 
  • All cancer cells show the five properties. They are: 
  1. Continuous growth and division. 
  2. Avoidance of programmed cell death. 
  3. Competes with normal cells for vital nutrients.
  4.  Promoting blood vessel construction. 
  5. Invasion of tissue and formation of metastases. Hence, the property which cancer cells does not have is they show contact inhibition.
 So, the correct answer is 'They show contact inhibition'.

Multiple choice zoology health and diseases diseases caused by changes in lifestyle diseases and toxic substance non-infectious diseases non infectious diseases categories of diseases

Which one of the following techniques is safest for the detection of cancers?

  1. Radiography (X-ray)

  2. Computed tomography (CT)

  3. Histopathological studies

  4. Magnetic resonance imaging (MRI)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Magnetic Resonance Imaging (MRI) uses strong magnetic fields and non-ionizing radio waves to generate detailed images of internal body structures. Unlike X-rays and Computed Tomography (CT) scans, MRI does not expose the patient to potentially harmful ionizing radiation, making it the safest imaging technique among the choices for cancer detection.

Multiple choice zoology important and common human diseases diseases caused by changes in lifestyle diseases and toxic substance non-infectious diseases

Proliferation of cancer cells is not limited because of:

  1. Differing surface proteins

  2. Differing cholesterol level

  3. Aberrant chromosomal complement

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

The difference between normal tissues and cancer tissues is the rate of metabolism.  In normal cells, hundreds of genes intricately control the process of cell division. Normal growth requires a balance between the activity of those genes that promote cell proliferation and those that suppress it. However, in the case of cancer cells, they involve abnormal growth. Cells become cancerous after mutations accumulate in the various genes that control cell proliferation. Hence proliferation of cancer cell is not limited because of differing surface proteins and aberrant chromosomal complements. Thus, the correct answer is option D.

Multiple choice evs food trends need for nutrients nutrition and its deficiency nutrition and its need balanced diet and malnutrition balanced and unbalanced food digestive disorders diseases caused by changes in lifestyle diseases and toxic substance health and its maintenance

Carbohydrates are generally called as saccharides.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbohydrates (also called saccharides) are molecular compounds made from just three elements: carbon, hydrogen and oxygen. Monosaccharides (e.g. glucose) and disaccharides (e.g. sucrose) and polysaccharide (starch). They are often called sugars.

So, the correct option is 'True'.

Multiple choice evs food trends need for nutrients nutrition and its deficiency nutrition and its need balanced diet and malnutrition balanced and unbalanced food digestive disorders diseases caused by changes in lifestyle diseases and toxic substance health and its maintenance

The food which includes the essential nutrients in a definite quantity is termed as balanced diet.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nutrients that we obtain through food have vital effects on physical growth and development, maintenance of normal body function, physical activity and health. Nutritious food is, thus needed to sustain life and activity. Our diet must provide all essential nutrients in the required amounts. Requirements of essential nutrients vary with age, gender, physiological status and physical activity. Dietary intakes lower or higher than the body requirements can lead to under nutrition (deficiency diseases) or over nutrition (diseases of affluence) respectively. So, the correct option is 'True'.

Multiple choice biology food and human health balanced diet and malnutrition balanced and unbalanced food digestive disorders diseases caused by changes in lifestyle diseases and toxic substance health and its maintenance

Protein and energy deficiency in food result in which disorder.

  1. Kwashiorkor

  2. Marasmus

  3. Diarrhoea

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

Marasmus is caused by a simultaneous deficiency of both proteins and calories (energy), typically affecting infants. Kwashiorkor, on the other hand, is primarily a protein deficiency with adequate calorie intake.

Multiple choice biology food and human health balanced diet and malnutrition balanced and unbalanced food digestive disorders diseases caused by changes in lifestyle diseases and toxic substance health and its maintenance

A patient is generally advised to specially take exposure to sun to prevent:

  1. Kwashiorkor

  2. Rickets

  3. Anaemia

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

Sunlight exposure helps the human body synthesize Vitamin D from cholesterol in the skin. A deficiency in Vitamin D leads to rickets, a condition characterized by weakened and softened bones in children.

Multiple choice biology food and human health balanced diet and malnutrition balanced and unbalanced food digestive disorders diseases caused by changes in lifestyle diseases and toxic substance health and its maintenance

Observe the given statements.
(i) Protein deficiency in diet leads to kwashiorkor disease.
(ii) Deficiency of only calories leads to marasmus disease.

  1. i and ii are true

  2. i is true and ii is false

  3. i is false and ii is true

  4. i and ii are false
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice biology food and human health balanced diet and malnutrition balanced and unbalanced food digestive disorders diseases caused by changes in lifestyle diseases and toxic substance health and its maintenance

Inadequate protein intake leads to Kwashiorkor. The subsequent edema is most closely related to inadequate synthesis of which protein?

  1. Gamma globulin

  2. Glucagon

  3. Insulin

  4. Albumin
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Kwashiorkor is associated with a decrease in serum proteins. The drop is particularly striking in liver-synthesized protein i.e. albumin ( < 2 g/dl against 3-4.5 g/dl ) and lipoproteins. The protein synthesis in liver is dependent upon the supply of alimentary amino acids after each meal. So later if the protein deficiency persist there is again a drop in the level of albumin synthesis which can be noticed immediately.
The ingestion of protein rich food can control kwashiorkor. The treatment can be monitored by measuring plasma albumin concentration, disappearance of edema and gain in body weight.