Enzymes
In Our Time1 Juni 2017

Enzymes

Melvyn Bragg and guests discuss enzymes, the proteins that control the speed of chemical reactions in living organisms. Without enzymes, these reactions would take place too slowly to keep organisms alive: with their actions as catalysts, changes which might otherwise take millions of years can happen hundreds of times a second. Some enzymes break down large molecules into smaller ones, like the ones in human intestines, while others use small molecules to build up larger, complex ones, such as those that make DNA. Enzymes also help keep cell growth under control, by regulating the time for cells to live and their time to die, and provide a way for cells to communicate with each other.

With

Nigel Richards Professor of Biological Chemistry at Cardiff University

Sarah Barry Lecturer in Chemical Biology at King's College London

And

Jim Naismith Director of the Research Complex at Harwell Bishop Wardlaw Professor of Chemical Biology at the University of St Andrews Professor of Structural Biology at the University of Oxford

Producer: Simon Tillotson.

Avsnitt(1083)

Margaret Beaufort

Margaret Beaufort

Misha Glenny and guests discuss the woman who, as a child bride, became mother to the boy who would eventually become the first king in the Tudor dynasty. Lady Margaret Beaufort (c1443-1509) was twelv...

2 Apr 54min

The Columbian Exchange

The Columbian Exchange

Misha Glenny and guests discuss the exchange of cultures and biology across the Atlantic and Pacific after 1492. That was when Columbus reached the Bahamas, a time when Europe had no potatoes, tomatoe...

26 Mars 52min

John Keats

John Keats

Misha Glenny and guests discuss the short life and lasting works of Keats (1795-1821), who in one year wrote some of the most loved poems in English. Among these are Ode to a Nightingale, Ode on a Gre...

19 Mars 48min

The Code of Hammurabi

The Code of Hammurabi

Misha Glenny and guests discuss the laws that Hammurabi (c1810 - c1750 BC), King of Babylon, had carved into a black basalt pillar in present day Iraq and which, since its rediscovery in 1901 in prese...

12 Mars 49min

Henry IV Part 1

Henry IV Part 1

Misha Glenny and guests discuss one of the most successful of Shakespeare's plays in his own time. Written with no Part 2 in mind as 'Henry the Fourth', the play explores ideas about who can be a legi...

5 Mars 51min

The Roman Arena

The Roman Arena

Misha Glenny and guests discuss the countless venues across the Roman Empire which for over five hundred years drew the biggest crowds both in the Republic and under the Emperors. The shows there deli...

26 Feb 50min

The Mariana Trench

The Mariana Trench

Misha Glenny and guests discuss one of the wonders of the natural world. In 1875 in the western Pacific, the crew of HMS Challenger discovered the Mariana Trench which turned out to be deeper than Ev...

19 Feb 58min

On Liberty

On Liberty

Journalist, author and historian Misha Glenny presents his first edition of In Our Time, succeeding Melvyn Bragg who retired from this role last summer. Misha and his guests discuss the landmark work ...

12 Feb 49min

Populärt inom Historia

massmordarpodden
p3-historia
kod-katastrof
historiska-brott
olosta-mord
motiv
rss-historiska-brottslingar
historiepodden-se
rss-historien-om
rss-seriemordarpodden
historianu-med-urban-lindstedt
rss-massmordarpodden
mannen-utan-spar
militarhistoriepodden
krigshistoriepodden
harrisons-dramatiska-historia
nu-blir-det-historia
rss-brottsligt
bedragare
obskyr-historia