For Supervisor’s use only
90177
1
Level 1 Human Biology, 2004
90177 Describe maintenance of normal body functioning
Credits: Two
9.30 am Tuesday 23 November 2004
Check that the National Student Number (NSN) on your admission slip is the same as the number at the
top of this page.
You should answer ALL the questions in this booklet.
If you need more space for any answer, use the page provided at the back of this booklet and clearly
number the question.
Check that this booklet has pages 2–6 in the correct order and that none of these pages is blank.
YOU MUST HAND THIS BOOKLET TO THE SUPERVISOR AT THE END OF THE EXAMINATION.
Achievement Criteria
Achievement
Describe maintenance of normal
body functioning.
For Assessor’s use only
Achievement
with Merit
Explain maintenance of normal
body functioning.
Achievement
with Excellence
Discuss maintenance of normal
body functioning.
Overall Level of Performance
© New Zealand Qualifications Authority, 2004
All rights reserved. No part of this publication may be reproduced by any means without the prior permission of the New Zealand Qualifications Authority.
2
You are advised to spend 20 minutes answering the questions in this booklet.
QUESTION ONE
A glucose drink is taken after hard exercise.
(a)
Describe the effect the drink has on glucose levels in the blood.
A hormone called insulin helps control the blood sugar level of the body.
The diagram below shows events that take place to control glucose levels in the blood.
Food
Digestive
system
Glucose
Pancreas
Bloodstream
increases in
glucose
Bloodstream
decreases in
glucose
Insulin
Glucose
stored in
liver
Assessor’s
use only
3
(b)
Use the information in the diagram on page 2 to explain how insulin helps to maintain the
glucose levels in the blood after finishing a drink high in glucose.
Assessor’s
use only
4
QUESTION TWO
Assessor’s
use only
The diagram below shows a cross section of a person’s skin while they are exercising.
hair
capillaries
sweat gland
(a)
Describe TWO changes that take place in the skin during exercise.
(1)
(2)
(b)
Discuss how a cold body tries to return to a normal body temperature. You need to refer to
specific body parts or processes in your answer.
5
QUESTION THREE
Alcohol has many effects on the human body.
Explain how the body tries to return to normal body functioning after drinking alcohol.
QUESTION FOUR
It is recommended a person drinks 6 to 8 glasses of water per day to avoid dehydration.
Discuss how the body of a dehydrated person tries to return to a normal fluid balance. You need to
refer to specific body parts and processes in your answer.
Assessor’s
use only
6
Extra paper for continuation of answers if required.
Clearly number the question.
Question
number
Assessor’s
use only