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1009 available questions

Biology · Question 961

Hunger contractions are:

  1. Peristaltic contractions
  2. Peristaltic relaxations
  3. Antiperistaltic movements
  4. All of these
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Correct answer: A

Peristaltic contractions

The correct answer is Peristaltic contractions.

Biology · Question 962

Chyme leaves the stomach when which structure relaxes?

  1. Cardiac sphincter
  2. Pyloric sphincter
  3. Epiglottis
  4. Ileocolic sphincter
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Correct answer: B

Pyloric sphincter

The correct answer is Pyloric sphincter.

Biology · Question 963

A painful burning sensation caused by acidic chyme flowing back into the oesophagus is called:

  1. Hunger pang
  2. Pyrosis
  3. Antiperistalsis
  4. Myocardial infarction
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Correct answer: B

Pyrosis

The correct answer is Pyrosis.

Biology · Question 964

Jaundice is caused by:

  1. Accumulation of bile pigments in blood
  2. Precipitation of cholesterol in the gallbladder
  3. Liver rupture
  4. Heart malfunction
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Correct answer: A

Accumulation of bile pigments in blood

The correct answer is Accumulation of bile pigments in blood.

Biology · Question 965

Gallstones commonly result from:

  1. Accumulation of cholesterol in gall bladder
  2. Liver does convert ammonia into urea
  3. Enlargement of liver
  4. Breakdown of haemoglobin in liver
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Correct answer: A

Accumulation of cholesterol in gall bladder

The correct answer is Accumulation of cholesterol in gall bladder.

Biology · Question 966

Which substance can damage the liver?

  1. Cholesterol
  2. Bile pigments
  3. Alcohol
  4. All of these
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Correct answer: C

Alcohol

The correct answer is Alcohol.

Biology · Question 967

Lenticels exchange gases in which part of a plant?

  1. Leaves
  2. Old stem
  3. Roots
  4. Aquatic plants
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Correct answer: B

Old stem

The correct answer is Old stem.

Biology · Question 968

Movement through which water-transport pathway is normally negligible?

  1. Apoplast pathway
  2. Symplast pathway
  3. Vacuolar pathway
  4. All of these
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Correct answer: C

Vacuolar pathway

The correct answer is Vacuolar pathway.

Biology · Question 969

What provides the upward flow of water and minerals from roots to leaves?

  1. Solar radiation
  2. Transpiration pull
  3. Kinetic energy of water molecules
  4. Cohesion and adhesion forces alone
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Correct answer: B

Transpiration pull

The correct answer is Transpiration pull.

Biology · Question 970

Ostia are paired lateral openings between the heart chambers of a:

  1. Man
  2. Earthworm
  3. Frog
  4. Cockroach
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Correct answer: D

Cockroach

The correct answer is Cockroach.