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Chemical Coordination and Integration Test -1

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Chemical Coordination and Integration Test -1
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Hormone which acts on hypothalamus to decrease food intake, stimulate satiety and increase energy output is :

    Solution

    Explanation:

    Leptin hormone acts on hypothalamus to decrease food intake, stimulate satiety and increase energy output. Leptin hormone is made by adipose cells.

     

  • Question 2
    1 / -0

    Which of the following is not a mixed/composite gland? 

    Solution

    Explanation:

    A gland that contain both exocrine and endocrine portion is called mixed or composite gland. These glands secretes both hormone and enzymes. Pineal gland is an example of endocrine gland.

     

  • Question 3
    1 / -0

    The hormone causing release of milk after the birth of young one is :

    Solution

    Explanation:

    Mammary glands start releasing milk after parturition. The hormone causing release of milk after the birth of young one is Oxytocin.

     

  • Question 4
    1 / -0

    Old people usually exhibit weaker immune power due to degeneration of

    Solution

    Explanation:

    Thymus gland produces a hormone called thymosin which stimulates the T-cells. T-cells help in producing antibodies in the bodies. In older people weaker immune power is due to degeneration of thymus gland.

     

  • Question 5
    1 / -0

    The largest endocrine gland is

    Solution

    Explanation:

    Thyroid is the largest endocrine gland present in human body. This gland release thyroxin hormone that help in metabolism of carbohydrates, fats and proteins.

     

  • Question 6
    1 / -0

    Process of parturition is facilitated by :

    Solution

    Explanation:

    The process of parturition begins after completion of gestation period. The muscles present in uterus start contracting due to release of hormone relaxin and Oxytocin.

     

  • Question 7
    1 / -0

    Adrenal medulla consists of a cluster of _____ nerves and those cells are also known as _____ cells :

    Solution

    Explanation:

    Adrenal medulla consists of a cluster of sympathetic nerves and those cells are also known as chromaffin cells. Adrenal medulla is part of the adrenal gland located at the center of the adrenal gland.

     

  • Question 8
    1 / -0

    The hormone secreted by pars intermedia of hypophysis is :

    Solution

    Explanation:

    The hormone secreted by pars intemedia of hypophysis is melanocyte-stimulating hormones (MSH). MSH is a peptide hormone also knownas melanotropins.

     

  • Question 9
    1 / -0

    Glucocorticoids regulate metabolism of :

    Solution

    Explanation:

    The name glucocorticoid (glucose + cortex + steroid) is composed from its role in regulation of glucose metabolism, synthesis in the adrenal cortex, and its steroidal structure.

    The principal glucocorticoid hormone is cortisol, which regulates the metabolism of proteins, carbohydrates, and lipids.

     

  • Question 10
    1 / -0

    By chemical nature, hormones are never :

    Solution

    Explanation:

    Hormones are generally protein components having amino acids as well as steroids. Hormones are generally not monosaccharide derivatives in nature.

     

  • Question 11
    1 / -0
    Which of the following produces erythropoietin?
    Solution
    Erythropoietin is a hormone produced by the kidney that leads to the formation of red blood cells (RBC) in the bone marrow. Its major function is to enable the differentiation and development of red blood cells and to initiate the production of hemoglobin. Thus the correct answer is option A.
  • Question 12
    1 / -0
    Basal metabolic rate is maintained by 
    Solution
    The thryoid gland is the small gland which is situated in the neck. This is butterfly shaped gland. There are many lobules which are composed of cells. These cells produce T$$_3$$ and T$$_4$$ hormones. These hormones are responsible for maintaining and regulating the different biochemical reactions. These reactions determines the basal metabolic rate. The hormones have effect on the cells for the uptake of the nutrients and energy production. 
    Thus, the correct answer is option C. 
  • Question 13
    1 / -0
    Which of the following is a mixed gland?
    Solution
    Pancreas is a mixed gland having both endocrine and exocrine functions. Endocrine portion secretes hormones, insulin and glucagon while the exocrine portion secretes an alkaline pancreatic juice containing enzymes and bicarbonate.
  • Question 14
    1 / -0
    Gonadotropin releasing hormone is formed by
    Solution
    A. Adenohypophysis is anterior pituitary which consists of pars distalis and pars intermedia. Pars distalis produces growth hormone (GH), thyroid stimulating hormone (TSH), adrenocorticotrophic hormone (ACTH), prolactin (PRL), follicle stimulating hormone (FSH) and luteinizing hormone (LH). Pars intermedia produces melanocyte stimulating hormone (MSH).
    B. Pars intermedia is part of adenohypophysis which produce melanocyte stimulating hormone (MSH).
    C. Neurohypophysis is posterior pituitary stores and releases two hormones oxytocin and vasopressin.
    D. Hypothalamus secrete gonadotrophin releasing hormone (GnRH) and somatostatin hormone.
    So, the correct answer is 'Hypothalamus'.
  • Question 15
    1 / -0
    Pituicytes are under the control of ____________.
    Solution
    Pituicytes are the cells found in the posterior lobe of pituitary gland. The hormones, oxytocin and vasopressin released by pituicytes are actually produced by hypothalamus.
  • Question 16
    1 / -0

    Parathyroid hormone is: 

    Solution
  • parathyroid hormone (PTH) is a protein in nature composed of 84 amino acids. 
  • parathyroid glands make more or less parathyroid hormone (PTH) in response to the level of calcium in the blood. 
  • When the calcium in our blood goes too low, the parathyroid glands make more PTH. so, option A is correct answer .
  • Question 17
    1 / -0
    ANF is secreted by__________ and its function is __________________.
    Solution
    Answer is option B i.e. "Atria -lowering blood pressure and blood volume"
    Atrial Natriuretic Factor (ANF) is a hormone produced in the atria of heart. It's function or effect is to increase excretion of water and sodium and a lowering of blood pressure, which reduces the workload of the heart.
  • Question 18
    1 / -0
    Which is the smallest gland in human body?
    Solution
    The pineal gland is a pinecone-shaped small gland located in the middle of the human brain in between the two hemispheres in an area called the epithalamus. It is the major site for melatonin secretion, which regulates the body’s internal clock. 
    Thus, the correct answer option D. 
  • Question 19
    1 / -0
    Which of the following is/are the secretion/s of Adrenal gland?
    Solution
    Adrenal glands are pair of glands present on the top of the kidneys. The adrenal glands secretes mainly three type of cortisone, nor-epinephrine, adrenaline. 
    Thus, the correct answer is (D).
  • Question 20
    1 / -0
    Which parts/belongings of animals are particularly susceptible to temperature changes?
    Solution
    Temperature variations affects the life cycles of animals. Every animal has a fixed period of reproduction, some reproduce during summers while some during winter.Since, only eggs and larvae forms the components of reproductive cycle, hence A is the correct option.
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