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Explain the lock and key model of enzyme action, including how they are denatured.

An enzyme is a protein that functions as a biological catalyst by speeding up chemical reactions and remaining unchanged by the reaction. The place on an enzyme where the molecule binds is called the acti...

Answered by Lucy Erin S. • Biology tutor

11550 Views

How does nervous input in a human cause increase cardiac output during exercise?

The nervous system can be divided into two branches-the parasympathetic branch and the sympathetic branch. The activity of the sympathetic nervous system is increased in response to exercise. This respons...

Answered by Tamarind R. • Biology tutor

5363 Views

How does Fitzgerald present the theme of isolation through the character of Jay Gatsby in 'The Great Gatsby'?

Gatsby is the primary representation of a figure that is completely isolated due to his disassociation with reality, and the belief that by simply acquiring wealth he will be able to secure Daisy’s love. ...

Answered by • English Literature tutor

26154 Views

Eleven pet owners were asked how many pets they had in total. The results are given below. 1, 1, 2, 3, 4, 5, 5, 6, 6, 6, 7 - Two more owners are asked how many pets they have. Including their results the mean goes down to 4 but the mode is unchanged from

1, 1, 2, 3, 4, 5, 5, 6, 6, 6, 7 - n=11mean = 46/11mode= most common so 6after n=13, mean is 413*4=52so 52-46=64 and 2 works1 and 5 not as mode changes3 and 3 not as mode changes

Answered by Rishi J. • Maths tutor

2046 Views

Explain the role of the moderator in a fission reaction.

slows neutrons/reduces KE of neutrons so that neutrons can be absorbed by the U-235 nucleus to cause fission to release kinetic energy. (nuclear reactor and energy)

Answered by Rishi J. • Physics tutor

2984 Views