Chemical Coordination and Integration

Chemical Coordination and Integration

Easy Questions

Advanced Zoology

Animal Kingdom
Structural Organisation in Animals
Digestion and Absorption
Breathing and Exchange of Gases
Body Fluids and Circulation
Excretory Products and their Elimination
Locomotion and Movement
Neural Control and Coordination
Chemical Coordination and Integration
Human Reproduction
Human Health and Disease
Biotechnology Principles and Processes
Biomolecules (Zoology)
Evolution (Zoology)
Biotechnology and its Applications
Reproductive Health
  1. Which of the following is an accumulation and release centre of neurohormones?








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    Neurohormones are actually secreted by the neurosecretory cells of the hypothalamus. They are circulated to the posterior part of the pituitary gland through the blood & stored there and released when required.

    Correct Option: D

    Neurohormones are actually secreted by the neurosecretory cells of the hypothalamus. They are circulated to the posterior part of the pituitary gland through the blood & stored there and released when required.

  1. Sertoli cells are regulated by the pituitary hormone known as








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    During spermatogenetic developments spermatids get nourished by nurse or sertoli cells. The function of sertoli cells and hence the spermatogenesis is under the direct influence of follicle-stimulating hormone (FSH) secreted by adenohypophysis of pituitary gland.

    Correct Option: D

    During spermatogenetic developments spermatids get nourished by nurse or sertoli cells. The function of sertoli cells and hence the spermatogenesis is under the direct influence of follicle-stimulating hormone (FSH) secreted by adenohypophysis of pituitary gland.

  1. Feeling the tremors of an earthquake a scared resident of seventh floor of a multistored building starts climbing down the stairs rapidly. Which hormone initiated this action?








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    It is commonly called as ‘emergency hormone’ or 3F – hormone (For fear, fight & flight). Its secretion is regulated by SNS, and not by pituitary as in case of adrenal cortex. It stimulates sweating, heart beat and breathing rate. It causes the dilation of coronary artery (supplying blood to the heart muscles), bronchioles (for increasing inspiratory volume) and pupil (for better vision).

    Correct Option: A

    It is commonly called as ‘emergency hormone’ or 3F – hormone (For fear, fight & flight). Its secretion is regulated by SNS, and not by pituitary as in case of adrenal cortex. It stimulates sweating, heart beat and breathing rate. It causes the dilation of coronary artery (supplying blood to the heart muscles), bronchioles (for increasing inspiratory volume) and pupil (for better vision).

  1. A person is having problems with calcium and phosphorus metabolism in his body. Which one of following glands may not be functioning properly?








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    Parathyroid disorders: It causes the lowering of blood calcium level. This increases the excitability of nerves and muscles causing cramps and convulsions.

    Correct Option: D

    Parathyroid disorders: It causes the lowering of blood calcium level. This increases the excitability of nerves and muscles causing cramps and convulsions.

  1. Which part of ovary in mammals acts as an endocrine gland after ovulation?








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    Graafian follicle – the ovarian medulla contains many rounded or oval bodies, called ovarian, or graafian follicles, at various stages of development. Each follicle contains a large ovum surrounded by many layers of follicle cells.

    Correct Option: D

    Graafian follicle – the ovarian medulla contains many rounded or oval bodies, called ovarian, or graafian follicles, at various stages of development. Each follicle contains a large ovum surrounded by many layers of follicle cells.