Lesson 5.1.4a

5.1.4a Hormones and blood glucose regulation Quiz: OCR Biology, Unit 5

20 questions

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Lesson 5.1.4a, Hormones and blood glucose regulation: 20 multiple choice questions for the OCR Biology (H020), Unit 5: Communication and homeostasis, written with Revision Ninja.

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The 20 questions

  1. Hormones are transported in which fluid to reach their target cells?

    • Lymph only
    • Saliva
    • Cerebrospinal fluid only
    • Blood
  2. Which gland secretes adrenaline?

    • Adrenal cortex
    • Pituitary gland
    • Adrenal medulla
    • Pancreas
  3. Which group of hormones is secreted by the adrenal cortex?

    • Glycoproteins
    • Peptide hormones
    • Catecholamines
    • Corticosteroids
  4. Which tissue in the pancreas contains the endocrine cells?

    • Myelin sheath cells
    • Islets of Langerhans
    • Pancreatic ducts only
    • Acini
  5. Which specific pancreatic cells secrete the hormone insulin?

    • Acini cells
    • Delta cells
    • Beta cells
    • Alpha cells
  6. Which hormone raises blood glucose by stimulating glycogen breakdown in the liver?

    • Glucagon
    • Aldosterone
    • Insulin
    • ADH
  7. Which process is stimulated by insulin to lower blood glucose?

    • Glycogenolysis
    • Gluconeogenesis
    • Glycolysis
    • Glycogenesis
  8. Which structural feature characterises all endocrine glands?

    • They contain acini
    • They have ducts
    • They are ductless
    • They possess cilia
  9. What is the response of pancreatic beta cells to high blood glucose?

    • Inhibiting glycogenesis
    • Secreting glucagon
    • Secreting adrenaline
    • Secreting insulin
  10. Which hormone is secreted when blood glucose falls below normal?

    • Glucagon
    • Adrenaline
    • Insulin
    • Thyroxine
  11. How do insulin and glucagon maintain blood glucose homeostasis?

    • Antagonistic negative feedback
    • Positive feedback loops
    • Cascade amplification
    • Irreversible inhibition
  12. Which carbohydrate is stored in liver cells to regulate blood glucose?

    • Glycogen
    • Glucagon
    • Glucose 6-phosphate
    • Glycerol
  13. Which ions enter pancreatic beta cells to trigger insulin secretion?

    • Calcium ions
    • Sodium ions
    • Chloride ions
    • Potassium ions
  14. Which secretion shows the exocrine function of the pancreas?

    • Glucagon
    • Pancreatic juice
    • Somatostatin
    • Insulin
  15. What condition results from autoimmune destruction of pancreatic beta cells?

    • Type 1 diabetes
    • Diabetes insipidus
    • Type 2 diabetes
    • Hypoglycaemia
  16. Which biochemical pathway is stimulated by both adrenaline and glucagon?

    • Lipogenesis
    • Glycogenolysis
    • Glycogenesis
    • Glycolysis
  17. What happens to insulin secretion as blood glucose returns to normal?

    • It decreases
    • It increases
    • It stops permanently
    • It remains unchanged
  18. Why do hormones affect only specific target cells in the body?

    • Duct connections
    • Complementary surface receptors
    • Target cell enzymes
    • Nuclear pores
  19. How are endocrine hormones transported to distant target tissues?

    • Along neurones
    • In the blood
    • Across synapses
    • Through ducts
  20. Which of these is an endocrine gland?

    • The sebaceous gland
    • The salivary gland
    • The sweat gland
    • The adrenal gland

All OCR Biology quizzes