Dietary Sources

Dietary Sources

List sources of thiamine (B1) and effect of its deficiency.
Answer.

Dietary Sources

• Plant sources – rice, wheat, peas, beans and nuts
• Animal sources – liver, meat, eggs, pork and milk

NEET Physics Class 11 Chapter 3 Centre of Mass MCQs and Answers

Deficiency Features

• The deficiency of thiamine results in a condition called beriberi (Sinhalese – I cannot, said twice)
• Cardiovascular features – these include palpitation, dyspnoea, cardiac hypertrophy, which may progress to congestive cardiac failure
• Neurological features
  • There is ascending, symmetrical, peripheral polyneuritis
  • Numbness in the legs
  • Pins and needles sensation in the legs
  • Mental depression and irritability
  • In some cases, there may be acute hemorrhagic encephalitis, which is known as Wernicke’s encephalopathy

Centre of Mass MCQs for NEET Physics Class 11 with Answers

• GIT features
  These include decreased gastric motility, nausea, weakness, fever and vomiting.
• Metabolic features
  • There is an accumulation of pentose sugars in the RBCs due to the retardation of the transketolase reaction
  • There is an accumulation of pyruvate in the tissues and blood due to decreased activity of pyruvate dehydrogenase

Centre of Mass NEET Class 11 MCQs with Detailed Solutions

• Types of beriberi
  It is of two types
  • Wet beriberi – in this oedema is present due to congestive cardiac failure and low plasma albumin level
  • Dry beriberi – oedema is absent.