Biology Practice: Endocrine System (Mock Test 4 - Expert/Experimental)
1. In a clinical observation, a patient exhibits an extremely high metabolic rate, rapid heartbeat, and protruding eyeballs. Which experimental test would confirm the diagnosis of Exophthalmic Goitre?
2. An investigator removes the Pituitary gland from an experimental animal. Which of the following organs will likely stop functioning normally as a result?
3. If a student consumes a large amount of water in a short time, how does the Endocrine system respond to maintain homeostasis?
4. A patient is diagnosed with 'Cushing’s Syndrome'. Microscopic examination of their adrenal glands is likely to show:
5. In a laboratory test, Benedict's solution turns brick red when boiled with a patient's urine sample. This experimental evidence points to:
6. Why does the 'Emergency Hormone' (Adrenaline) cause the skin to turn pale during a fearful situation?
7. A researcher notes that a patient has 'Tetany'. A blood test reveals severe Hypocalcemia. Which gland is likely under-secreting?
8. What is the physiological purpose of the 'Negative Feedback' loop in Thyroxine regulation?
9. An adult male exhibits soft skin, a high-pitched voice, and lack of facial hair. Laboratory analysis of his blood would likely show low levels of:
10. 'Acromegaly' is an expert-level diagnosis for someone who has an enlarged lower jaw and thickened bones of the hands. This is caused by:
11. A doctor prescribes an injection of 'Oxytocin' to a woman during a difficult labor. What is the expected biological result?
12. During a period of prolonged fasting, which hormone is most active in the blood to prevent a drop in energy?
13. 'Diabetes Insipidus' differs from 'Diabetes Mellitus' because in the insipidus form:
14. Which of the following is an example of an 'Antagonistic' pair of hormones?
15. A person is unable to produce 'Melatonin'. In which daily process would they likely face extreme difficulty?
16. 'Addison’s Disease' leads to excessive loss of Sodium in urine. This is because of the lack of:
17. In the 'Fight or Flight' response, Adrenaline increases the rate of 'Glycogenolysis'. This means:
18. A doctor identifies a patient with 'Myxoedema'. The patient is likely to show:
19. Why is the 'Hypothalamus' often called the 'Master of the Master Gland'?
20. In an experiment, if the Beta cells of the Islets of Langerhans are destroyed, what will be the most immediate clinical observation?
