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What is the difference between an artery and a vein?

Arteries and veins both carry blood around the body, and they each have three main layers of tissue (a ring of endothelial tissue at the centre of the blood vessel surrounded by a layer of muscle and elastic...
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Answered by Emily W. • Biology tutor
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What are the differences between Carbohydrates and Lipids?

Carbohydrates - 17 kJ of energy per gram - Disaccharides = highly soluble. Polysaccharides = insoluble - Less metabolic water produced - Stored as STARCH in plants and GLYCOGEN in animals - Monomer = Glucose...
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Answered by Laura S. • Biology tutor
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What is the difference between passive and active immunity?

Active immunity is happens due to the contact of lymphocytes with pathoges (or simply their antigens), which triggers the specific immune response and immunological memory is produced (T-Memory cells created...
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Answered by Katerina T. • Biology tutor
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Why is our genetic code degenerate?

To answer this question, it is first important to understand the meaning of the word degenerate. So being an A level Biology student, you must know that genes code for amino acids . (these are the basic comp...
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Answered by Amna A. • Biology tutor
21467 Views

What are the functional differences between RNA and DNA

DNA is the medium which encodes the information that makes an organism what it is. DNA usually forms a double stranded structure and encodes genes and other regulatory elements. RNA can act as either catalys...
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Answered by Rosewan A. • Biology tutor
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