Animal Endocrine System
Biology ⇒ Animal Biology
Animal Endocrine System starts at 10 and continues till grade 12.
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See sample questions for grade 12
A patient has abnormally high blood calcium levels. Which hormone is likely to be undersecreted?
Describe the effect of insulin deficiency in animals.
Describe the feedback mechanism that regulates thyroid hormone levels.
Describe the role of follicle-stimulating hormone (FSH) in animals.
A patient has abnormally high blood calcium levels. Which hormone is likely to be undersecreted?
A mutation causes the receptors for a certain hormone to become non-functional in an animal, even though the hormone is present at normal levels. What is the likely physiological outcome, and what is this condition called?
A researcher observes that an animal has abnormally low metabolic rate, stunted growth, and delayed sexual maturation. Laboratory tests reveal low levels of growth hormone and thyroid hormones. Explain the possible endocrine disorder and the underlying mechanism.
A sudden increase in blood osmolarity is detected in an animal. Which hormone is released in response, and what is its effect on the kidneys?
The adrenal medulla secretes which of the following hormones?
(1) Aldosterone
(2) Epinephrine
(3) Cortisol
(4) Thyroxine
Which of the following glands is both endocrine and exocrine in function?
(1) Thyroid gland
(2) Pancreas
(3) Adrenal gland
(4) Pineal gland
Which of the following hormones is involved in calcium homeostasis?
(1) Insulin
(2) Parathyroid hormone
(3) Glucagon
(4) Adrenaline
Which of the following hormones is produced by the anterior pituitary?
(1) Oxytocin
(2) Growth hormone
(3) Vasopressin
(4) Melatonin
The hormone __________ increases the reabsorption of water in the kidneys.
The hormone __________ is secreted by the adrenal cortex and helps regulate sodium and potassium balance.
The hormone __________ is secreted by the ovaries and is important for the regulation of the menstrual cycle.
The hormone __________ is secreted by the placenta during pregnancy and helps maintain the uterine lining.
True or False: All hormones are proteins.
True or False: Hormones are transported only through the nervous system.
True or False: Hormones can affect only the cells that have specific receptors for them.
True or False: The pituitary gland is often called the 'master gland' of the endocrine system.
