Investigating the Rate of Urination in Human

TITLE

To investigate the rate of urine formation based on different types of solution.

AIM

To investigate the rate of urine formation based on different types of solution.

RESEARCH QUESTION

Do different types of solution affect the rate of urine production?

HYPOTHESIS

Different types of solution consumed will result in a different rate of urine production.

VARIABLES

Variables

Method to control

Independent variable Types of solution consumed By consuming different types of solution such as distilled water, 100 Plus, barley solution and sucrose solution.

Dependent variable Rate of urine production By calculating the rate of urine production by dividing the volume of urine produced by the duration of the experiment, which is 20 minutes.

Controlled variable Time interval for each experiment The time interval for the urine collection is controlled at a constant rate of 20, 40, 60 and 80 minutes.

MATERIALS & APPARATUS

Refer to the Biology Handbook sheets attached.

METHOD

Refer to the Biology Handbook sheets attached.

DATA COLLECTION

Quantitative Data

Table 1: Data collection for urine collection for every solution

Type of solutions Trial Time interval

(minutes)

20 40 60 80

Distilled water 1 15 20 100 145

2 16 132 200 250

3 46 140 160 175

4 23 60 180 200

5 16 57 80 111

Barley solution 1 5 25 31 10

2 4 8 4 8

3 44 50 48 55

4 29 35 19 30

5 32 29 35 32

100 plus 1 2 30 42 12

2 8 5 7 7

3 18 16 20 14

4 30 40 20 25

5 20 15 19 21

Sucrose solution 1 10 10 10 10

2 16 17 10 10

3 27 10 10 8