An attempt to determine the molar masses of 2 componds by determining their relative boiling point elevations in the same solution and using the results, together with the analysis from Prog. 1 to obtain a molecular formula. Producer/Director: Jack Smith
A STUDY IN DOG WHELK ADAPTATION: ITV Schools. Made in 1975
ISOLATION AND METABOLISM OF MITOCHONDRIA: In this programme the mitochondria - photoplasmic bodies carrying out most of the aerobic metabolism within the cell - in the cells of a rats liver, are isolated and used to demonstrate how the new oxygen uptake can be recorded by the chemical reactions of various organic compounds in the mitochondria.
THE ISOLATION AND GROWTH OF BACTERIA: This particular microbiological experiment is designed to show the isolation and purification of the bacterium Escherichia Coli and the subsequent growth of the bacterium. In addition a simple growth experiment using the bacterium is demonstrated.
THE NATURE OF THE NERVE IMPULSE: This programme involves several experiments using one of the most thoroughly studied insect neurones (nerve cells), the descending contralateral movement detector (DCMD) of the locust to demonstrate the nature of the nerve impulse.
THE PHYSIOLOGY OF EXERCISE: This programme looks at the basic physiology of the cardio-vascular and respiratory systems to show how they provide a sufficient flow of blood to the muscles and adequate ventilation of the lungs when the body is involved in muscular exercise.
THE PRIMARY PRODUCTION OF HEATHER: Synopsis: This exercise is to assess the growth rate and net primary production of heather on a typical Pennine Moor as a basis on which energy flow and nutrient uptake can be estimated.
THE DOPPLER EFFECT: The Doppler effect is observed when the frequency of a sound heard from an approaching source is raised above that of a stationary source. For example the pitch of a police cars siren falls as it passes by on the street. In this laboratory experiment, using sound, the relationship between observed frequency shift and velocity of source is examined, also the effect where the source and observer are stationary but the sound is reflected from a moving object.