Homeostasis and Response: Foundation Tier Practice - Worksheets, Questions and Revision

9 original exam-style questions - 3 pages of questions with a full mark scheme - free printable PDF.

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B5F Homeostasis and Response: Foundation Tier Practice

AQA 8461 · Calculator allowed · about 75 minutes
Total Marks
Name: _______________________________    Date: ____ / ____ / ______
Answer ALL questions. Show all your working.
1
Homeostasis keeps the internal conditions of the body stable.
Give one example of an internal condition that is controlled by homeostasis.
(Total for Question 1 is 1 mark)
2
The pancreas produces hormones that control blood glucose.
Name the hormone produced by the pancreas that lowers blood glucose concentration.
(Total for Question 2 is 1 mark)
3
Negative feedback helps return a condition to its normal value.
Explain in one sentence how negative feedback works when blood glucose is too high.
(Total for Question 3 is 2 marks)
4
A person drinks a sugary drink and their blood glucose rises from 4.5 mmol per litre to 6.5 mmol per litre.
Calculate the increase in blood glucose concentration in mmol per litre.
(Total for Question 4 is 2 marks)
5
The kidneys filter blood and adjust water content in urine.
Name the hormone that increases water reabsorption in the kidneys.
(Total for Question 5 is 1 mark)
6
A simple investigation measures pupil size in bright and dim light. Results: bright light pupil diameter average 2.0 mm, dim light pupil diameter average 6.0 mm.
Calculate the difference in pupil diameter between bright and dim light. Then state which change is a reflex that helps protect the retina.
(Total for Question 6 is 3 marks)
7
Type 1 diabetes is a condition where the pancreas cannot produce insulin.
Give one common treatment for a person with type 1 diabetes, and give one other way their condition is managed day to day.
(Total for Question 7 is 2 marks)
8
Reflex actions are rapid and involuntary. Consider the pathway for a simple reflex triggered by touching a hot object.
Complete the sequence for the reflex arc: stimulus -> receptor -> ? -> effector -> response. Name the missing part of the pathway and briefly state its role.
(Total for Question 8 is 2 marks)
9
The skin helps regulate body temperature by sweating and changing blood flow. When the body is too hot, blood flow to the skin increases.
State one way blood flow to the skin changes to help cool the body, and explain how this helps cooling.
(Total for Question 9 is 2 marks)
Mark scheme · B5F Homeostasis and Response: Foundation Tier Practice

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9