Question

1.How does an increasing level of the hormone thyroxine influence the metabolic rate?

2.A person has developed a fever. How does the body's homeostatic mechanism respond to this increase in body temperature? List 3 responses.

Thank you!

Answer 1

1.Thyroid hormone stimulates diverse metabolic activities in most of the tissue, leads to increase in basal metabolic rate. Result is the increase in body heat production due to increased oxygen consumption and ATP hydrolysis .Thyroid hormone help your body burn fat providing more energy, increases BMR which means burning fat even you are not physically active. Thyroid hormone also impact carbohydrates metabolism.

2.a)Our body got chills during high fever in response the body shivers to maintain homeostasis .

b)During high fever blood vessels in the skin gets dilated ,allowing more blood to flow near the skin

c)Heart rate and respiratory rate also increases .

This is how the body reduces the heat caused by fever