Tag: control of blood glucose

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Multiple choice biology control and coordination in living organisms control of blood glucose endocrine system and hormone hormones in human reproduction testes and ovary parts of the brain kidney

Mammalian prolactin is secreted by 

  1. Adenohypophysis

  2. Neurohypophysis

  3. Adrenal cortex

  4. Adrenal medulla
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Prolactin (PRL), also known as luteotropic hormone or luteotropin, is a protein, that in humans is best known for its role in enabling female mammals to produce milk. Prolactin is a single-chain protein hormone. It is secreted by the lactotrophs in the anterior pituitary (adenohypophysis).

Multiple choice biology control and coordination in living organisms control of blood glucose endocrine system and hormone hormones in human reproduction testes and ovary parts of the brain kidney

The formation of egg and sperm is affected by 

  1. LH

  2. MSH

  3. TSH

  4. FSH
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In women, FSH hormone stimulates the growth of ovarian follicles in the ovary, before the release of an egg from one follicle at ovulation. It also increases oestradiol production. 

In men, follicle stimulating hormone acts on the Sertoli cells of the testes to stimulate sperm production (spermatogenesis).

Multiple choice biology control and coordination in living organisms control of blood glucose endocrine system and hormone hormones in human reproduction testes and ovary parts of the brain kidney

Acromegaly is a disease caused by 

  1. Over secretion of growth hormone in childhood.

  2. Over secretion of growth hormone in adulthood.

  3. Under secretion of growth hormone in adulthood.

  4. Deficiency of calcium and phosphorous in the diet.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Acromegaly is the abnormal growth of the hands, feet, and face. It is caused when there is oversecretion of growth hormone (GH) in adulthood. Similarly, oversecretion of growth hormone in childhood causes Gigantism. 

It is usually caused by a non-cancerous tumor in the pituitary gland.
Its symptoms include large hands and feet, thick lips, coarse facial features, a jutting forehead and jaw, and widely spaced teeth. Thus, the correct answer is option B.

Multiple choice biology control and coordination in living organisms control of blood glucose endocrine system and hormone hormones in human reproduction testes and ovary parts of the brain kidney

"4s gland" is 

  1. Pancreas

  2. Liver

  3. Thyroid

  4. Adrenal
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The adrenal gland is known as 4S gland. 4S stands for the source of energy, sugar metabolism, salt retention and sex hormones. 

The adrenal glands, located at the top of each kidney, produce hormones that help the body control blood sugar, burn protein, and fat, react to stressors like a major illness or injury and regulate blood pressure. Two of the most important adrenal hormones are cortisol and aldosterone.

Multiple choice zoology endocrine system and adolescence control of blood glucose endocrine system and hormone hormones in human reproduction

Which of the following are incorrectly matched

  1. Synthesis reaction-anabolism

  2. Decomposition reaction-catabolism

  3. Hydrolysis-anabolism

  4. Dehydration reaction-synthesis reaction
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Hydrolysis is the cleavage of biomolecules where a water molecule is consumed to affect the separation of a larger molecule into component parts. So, hydrolysis is a type of decomposition and that's why it is regarded as catabolism.
Hence, the correct answer is 'Hydrolysis-anabolism'
Multiple choice zoology endocrine system and adolescence control of blood glucose endocrine system and hormone hormones in human reproduction

Select the correct matching of a hormone , it's source and function.

  1. Vasopressin, posterior pituitary, Increase loss of water through urine

  2. Norepinephrine, Adrenal medulla, Increase heartbeat, increase rate of respiration and alertness

  3. Glucagon, Beta-cells of islets of langerhans, stimulates glycogenolysis

  4. Prolactin, Posterior pituitary and mammary glands, Regulates growth and milk formation in females
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vasopressin is released by the posterior lobe of the pituitary gland and it stimulates the reabsorption of water and electrolytes. 

Norepinephrine is secreted by the adrenal medulla and it increases the alertness, heartbeat and respiratory rate.
Glucagon is released by alpha cells and it increases the blood sugar level.
Prolactin is released by the anterior lobe of the pituitary gland and it helps in the regulation of mammary glands and the formation of milk in them. 
Thus, the correct answer is 'Norepinephrine, Adrenal medulla, Increase heartbeat, increase rate of respiration and alertness.'

Multiple choice biology coordination and response control of blood glucose endocrine system and hormone hormones in human reproduction

Which of the following hormones fall under the group amino acid derivatives?

  1. Thyroid hormones

  2. Testosterone

  3. Glucagon

  4. Epinephrine
Reveal answer Fill a bubble to check yourself
A,D Correct answer
Explanation

A.Thyroid hormones derived from the amino acid tyrosine.

B. testosterone is derived from cholesterol 

C.Glucagon is derived from proglucagon

D. Epinephrine,derived from the amino acid tyrosine, 

So, the correct answer is 'Epinephrine' and Thyroid hormone'.

Multiple choice biology coordination and response control of blood glucose endocrine system and hormone hormones in human reproduction

Which of the following is very accurate in case of hormonal control and coordination in human body?

  1. Response is slow and wide spread

  2. Transmission of impulse is very quick

  3. Information passes through blood and lymph

  4. Both A and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hormonal control and coordination are carried out via transmission through blood and lymph as it serves as a media for carrying and circulating hormones. However, the transmission may not be very quick. while the response is slow and widespread.

So, the correct option is 'Both A and C'.

Multiple choice biology coordination and response control of blood glucose endocrine system and hormone hormones in human reproduction

The activities of the gastrointestinal tract are under the control of 

  1. Nervous system

  2. Hormones

  3. Both A and B

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The activities of the gastrointestinal tract are under the control of the nervous system and hormones. The sight, smell and/or the presence of food in the oral cavity can stimulate the secretion of saliva. Similarly, gastric and intestinal secretions are also stimulated by neural signals. The muscular activities of different parts of the alimentary canal can also be moderated by neural mechanisms (both local and through CNS). Hormonal control of the secretion of digestive juices is carried out by local hormones produced by the gastric and intestinal mucosa.

So, the correct option is 'Both'.

Multiple choice biology coordination and response control of blood glucose endocrine system and hormone hormones in human reproduction

When an endotherms body temperature drops below normal, cold receptors send information to the hypothalamus.

The hypothalamus will send out signals that cause

  1. The organism to seek warmer climate.

  2. The production of brown fat in the neck.

  3. Vasodilation (widening) of blood vessels.

  4. Vasoconstriction (narrowing) of blood vessels.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Endotherms are animals which use internally generated heat to maintain body temperature. For example, birds and mammals.
  • When an endotherms body temperature drops below normal, cold receptors send information to the hypothalamus. The hypothalamus will send out signals that cause the organism to seek a warmer climate.
  • For example, when human body temperature drops below normal, cold receptors present in our body send signals to the hypothalamus. Then the hypothalamus will send out signals that cause us to seek a warmer climate.
  • So, the correct answer is 'The organism to seek warmer climate'.