Assuming rate is required, the following results were found.
-
Investigating factors affecting the heart rate of Daphnia
-
Observing the effects of exercise on the human body
-
Monitoring the body’s reactions to stress
-
Investigating factors affecting the breathing rate of a locust
-
Measuring rate of water uptake by a plant shoot using a potometer
-
Investigating factors affecting the rate of photosynthesis
-
Using a spirometer to investigate human lung function
-
Measuring the rate of metabolism
-
Estimating rate of transpiration from a plant cutting
-
Control of breathing rate
Investigate how carbon dioxide and oxygen in the air affect the breathing rate of a locust, and compare this with information collected from using a spirometer to investigate human breathing. Experiments
-
Control of heart rate
Investigate how heart rate changes with temperature, or under the influence of other chemicals that are physiologically active in mammals and other vertebrates. There are details here of a procedure for investigating living Daphnia, and also a detailed...
-
Controlling body mass
-
Investigating the effect of pH on amylase activity
-
Measuring respiratory quotient
-
Using a choice chamber to investigate animal responses to stimuli
-
Investigating effect of concentration on the activity of trypsin
-
Investigating an enzyme-controlled reaction: catalase and hydrogen peroxide concentration
-
Testing leaves for starch: the technique
-
Identifying the conditions needed for photosynthesis
-
Investigating what makes fruit go brown