Top answers

What is the difference the secondary structure and tertiary structure of a protein?

Secondary Structure The secondary structure of a protein refers to the basic foldings of a protein the forms of: 1. an alpha helix 2. a beta-pleated sheet These foldings are determined by hydrogen bonds. The...
DA
Answered by Daniella A. • Biology tutor
8664 Views

What is the difference between primary and secondary sources and when should they be used?

Primary sources are written by those who experienced the topic in question first hand. They come in a variety of different formats including but not limited to journal entries, letters, recorded interviews, ...
MB
Answered by Mary B. • History tutor
10663 Views

Using Pythagoras Theorem find the length of the hypotenuse of a right triangle where a=7 cm and b=11 cm. Round to the nearest tenth

Pythagos Theorem states that a^2 + b^2 = c^2 So using the figures we are given the equation would look like this: 7^2 + 11^2 = c^2 We square the numbers we can and then get: 49 + 121 = c^2 We add the left ha...
MB
Answered by Mary B. • Maths tutor
5974 Views

Using Trigonometric Identities prove that [(tan^2x)(cosecx)]/sinx=sec^2x

You should begin by identifying all the Trigonometric Identities that may be useful in this problem. Specifically, cosecx=1/sinx tanx=sinx/cosx 1/cosx=secx and possibly tan^2x + 1= sec^2x. I began by changin...
MB
Answered by Mary B. • Maths tutor
9884 Views

Explain Joseph Fletcher’s Approach to Ethics

Fletcher’s Situation Ethics is firstly a consequential ethical theory. It suggests that any action is dependent upon the consequences it produces. Situation Ethics is also teleological – it is concerned with...
PS
26648 Views