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Describe the structure of starch. How does this structure make starch well suited for energy storage?

Starch is a mix of 2 different polysaccharides:1) Amylose: a long chain of α-glucose monomers joined by 1,4-glycosidic bonds. The chain coils in a spiral shape, held together by hydrogen bonds. This shape ma...
MS
Answered by Molly S. • Biology tutor
84560 Views

Describe the life cycle of HIV

A HIV molecule enters the blood stream and invades cells of the immune system (CD4 cells). To do this, proteins on the surface of the virus bind to receptors on the host cell. This then allows the envelope o...
LC
Answered by Lucy C. • Biology tutor
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You are given a triangle ABC with sides length AB = 20cm, BC = 100cm and angle A = 70 degrees. Find the angle of C in degrees.

Always draw a diagram first to help with clarity.Correct use of Sine Rule:sin(A)/BC = sin(C)/ABTherefore sin(C) = ABsin(A)/BC sin(C) = 20sin(70)/100 sin(C) = 0.188 (rounded to 3 Significant Figures) C = arcs...
AP
Answered by Arron P. • Maths tutor
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How do I begin structuring a comparative essay between two texts?

The key to writing a successful comparison essay (or essay in general) is to make sure that you have planned out the mainframe of your essay before you begin writing. If you are not sure where to start then ...
SF
8697 Views

Describe the conditions that lead to a tropical revolving storm

Tropical storms can only form between approximately 5° and 30° latitude, as the revolving aspect utilises the Earth's Coriolis effect in order to enable it to spin. Furthermore, the must form above bodies of...
JM
Answered by James M. • Geography tutor
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