Homeostasis and Response Practice Questions
Question 1
Q1 (1 mark)
Define the term "stimulus".
Question 2
Q2 (2 marks)
Name the three basic functions of neurones.
Question 3
Q3 (3 marks)
Explain the role of synapses in nerve impulse transmission.
Question 4
Q4 (4 marks)
Describe the functions of the hormones adrenaline and thyroxine.
Question 5
Q5 (2 marks)
What is the target organ for the hormone glucagon?
Question 6
Q6 (3 marks)
Explain how the endocrine system maintains the blood glucose concentration within a narrow range.
Question 7
Q7 (4 marks)
Describe the role of the antidiuretic hormone (ADH) in maintaining water balance in mammals.
Question 8
Q8 (2 marks)
Which two plant hormones are responsible for seed germination and stem elongation, respectively?
Question 9
Q9 (3 marks)
Explain the role of auxins in the growth and development of plants.
Question 10
Q10 (4 marks)
Describe the reflex arc as a rapid and automatic response to a stimulus. Include the roles of the receptor, neurones, and effector.