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Why did a normal rat's metabolic rate decrease when injected with thyroxine?
Wiki User
∙ 15y ago
The effect of administering thyroxin on each of the rats was the baseline metabolic rate increased in each rat. Thyroxin was the most important hormone in maintaining metabolism and body heat.
Wiki User
∙ 9y ago
Wiki User
∙ 11y agoTSH, or thyroid stimulating hormone, does just what its name suggests - it stimulates the thyroid to produce thyroxine (T4) and triiodothyronine (T3) which stimulate metabolism in almost all body tissues. A thyroidectomy is a procedure involving the removal of the thyroid gland. So TSH won't have an effect in a rat that has undergone a thyroidectomy because it doesn't have a thyroid to affect. Without a thyroid to effect, no T4 or T3 will be created, meaning metabolic rate won't be stimulated.
Wiki User
∙ 15y agoIt increase the metabolic rate . This effect is seens because the throxine injected compensated for the thyroxine lost when thyroid was removed
Wiki User
∙ 9y agoThyroxine is the primary hormone secreted by the thyroid gland. It generally increases the overall metabolic rate of the animals.
Wiki User
∙ 11y agoThe thyroid had been removed.
Wiki User
∙ 15y agocuz he couldn't take a dump.
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What does thyroid hormone do to basal metabolic rate?
Tyroxine (T4) or tetraiodothyronine, is a thyroid hormone that synthesize and secreted by thyroid gland and capable of increase the basal metabolic rate in the body. Excessive secretion of thyroxine by thyroid gland will cause the hyperthyroidism which has symptoms include the abnormal basal metabolic rate above the normal level. On the other hand, the insufficient of the secretion of thyroid hormone or thyroxine will cause the hypothyroidism. Hypothyroidism's symptoms include the basal metabolic rate that below the normal level.
What gland regulates the body's normal metabolic rate?
the hypothalamus located on the brainstem controls metabolic rate by directly secreting hormones and indirectly managing other hormone production by glands of the endocrine system such as thyroid gland.
What controls thyroxine?
Is a hormone secreted bx thyroid gland important in maintaing calcium and phosphate balance of the body,normal development of neurons,maintaining metabolic rate,important in growth of infants.
How is Physiology?
Study of metabolic activities in plants and animals is called physiology
What is an Antimetabolite?
An antimetabolite is any substance which competes with or inhibits the normal metabolic process, often by acting as an analogue of an essential metabolite.
What does thyroid hormone do to basal metabolic rate?
Tyroxine (T4) or tetraiodothyronine, is a thyroid hormone that synthesize and secreted by thyroid gland and capable of increase the basal metabolic rate in the body. Excessive secretion of thyroxine by thyroid gland will cause the hyperthyroidism which has symptoms include the abnormal basal metabolic rate above the normal level. On the other hand, the insufficient of the secretion of thyroid hormone or thyroxine will cause the hypothyroidism. Hypothyroidism's symptoms include the basal metabolic rate that below the normal level.
What gland regulates the body's normal metabolic rate?
the hypothalamus located on the brainstem controls metabolic rate by directly secreting hormones and indirectly managing other hormone production by glands of the endocrine system such as thyroid gland.
Is the temperature of a normal healthy old man is less than that a normal healthy young man?
Yes . Because of decrease in metabolic activities with age .
Is the temperature of a normal healthy old man is less than that of a normal healthy young man?
Yes . Because of decrease in metabolic activities with age .
What controls thyroxine?
Is a hormone secreted bx thyroid gland important in maintaing calcium and phosphate balance of the body,normal development of neurons,maintaining metabolic rate,important in growth of infants.
What effect does TSH have on metabolic rate?
Hypophysectomized rats do not have the thyroxine with which to regulate metabolic rate properly. Thyroxine replacement can allow for the normalization of the metabolic rate (as it does in humans with hypothyroidism!).
What is the effects of tsh injection on normal rat?
Propylthiouracil is a drug given to patients with goiter to decrease or slow down basal metabolic rate.
What is the normal dose of THYroxine in case of hypothyroid?
If you mean "levothyroxine" than 0.75mg is a normal adult dose once a day.
Compare the baseline metabolic rates for the thyroidectomized rat and the normal rat and explain your results?
Thyroxine(secreted by the thyroid gland) increases oxygen uptake(and along with it metabolism) in all tissues of the body(except brain and RBC).Thus,thyroidectomy causes a derease in BMR in the rat(compared to a normal rat). http://answers.yahoo.com/question/index?…
What does BMR stands for?
BMR stands for Basal metabolic RateIt is also called the resting metabolic rate and is the amount of energy you expend in a normal resting state at normal temperature.It is used to calculate your calorific expenditure
Regulation of the release of T3 and T4 from the thyroid gland is controlled by negative feedback?
When the level of the thyroxine increase, the level of the thyroid stimulating hormone decrease. So in turn the level of the thyroid hormone decreases. When the level of the thyroxine decrease, the level of the thyroid stimulating hormone increase. This in turn increase the level of the thyroxine. This explanation does not explain to how the level of the hormone is regulated at that particular level. But then this explanation satisfy most of the people.
Metabolic rate will change when there is a change from the normal weight?
10%
