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The Normal rat
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∙ 14y ago
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What will happen to the metabolic rate OS a rat missing a thyroid gland?
it will decrease
Why does a rat need more oxygen then a frog?
Rats have a higher metabolic rate than frogs.
Why did a normal rat's metabolic rate decrease when injected with thyroxine?
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.
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?…
If propylthiouracil was injected what change in metabolic rate would you see in a thyroidectomized rat?
The weight in grams of the Thyroidectomized rat seemed to decrease when injected with propylthiouracil. Injected with tyroxine caused an increase in grams and ml of O2 levels do to the fact that tyroxine (a hormone from tyroid gland) increase the basal metabolic rate. ATT; Veronica V.
Why does propylthiouracil change the metabolic rate seen in a thyroidectomized rat?
Propylthiouracil is an additive that reversibly abolishes thyroid function and the thyroid controls how quickly the body burns energy.
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.
If propylthiouracil was injected what change in metabolic rate would you see in a hypophysectomized rat?
Purely guessing here, I'd assume a slowdown in overall metabolic rate. You've excised the pituitary gland, and adminsitered a thryoid antagonist. Unless there's some weird sympathetic reaction, a slowdown seems emminent.
How much of the total water gain does the kangaroo rat get from metabolic water?
Total water weight gain from metabolic water for the kangaroo rat is normally double its bodyweight. The rat doubles in size, registers as a democrat, and is then able to vote in the next election.
What is the fastest terrier?
Since Jack Russells are the 13th fastest dog breed in the worl, I would say they are probably the fastest terrier. I know some one that has a Jack Russells and I have a Rat Terrier and my dog is faster. So i think that a Rat Terrier is the fastest.
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!).
Is a rat an endotherm?
Yes a rat is an endotherm, most homeothermic animals are endothermic which means they maintain a warm body temperature by means of internal (metabolic) heat production.
