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A cylinder of base radius 2x and height 3x has the same volume as a cone of base radius 3x and height h. Find h in terms of x.

The equation for the volume of a cylinder is (1/2) pi (r 2 )*H, where r is the radius and H is the height of the cylinder. For the cylinder given, the volume is therefore (1/2) pi ((2x) 2 )*3x, or more simpl...
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Answered by Georgie F. • Maths tutor
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How does the DNA molecule affect the function and structure of an organism?

DNA is made up of a double helix with a sequence of nitrogenous bases attached; Adenine, Guanine, Cytosine and Thymine. These bases are used to code for messenger RNA, a molecule which allows for the replica...
MM
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Magnesium is a bulk metal in our bodies. What is it’s main role regarding ATP?

Magnesium 2+ ions bind to (they don’t REALLY bind) and stabilize ATP molecules. The ATP (also ADP and AMP) contain highly reactive phosphates (the energy is stored in the chemical bonds between the phosphate...
MT
Answered by Marko T. • Chemistry tutor
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What process is known as cell 'eating'and give one example of that process relating to the human immune system?

Cells need to eat and drink, just like me and you. The process where cells ingest other cells or foreign material is called PHAGOCYTOSIS. The process itself is very complicated and you don’t need to know the...
MT
Answered by Marko T. • Biology tutor
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What do I need to include in order to answer an A level AQA Extract Question?

The extract provided by AQA should directly guide and lead your response. Ensure you thoroughly read the extract and understand all content addressed. Re-read the extract a second time, highlighting key poin...
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Answered by Emma D. • History tutor
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