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How is ATP used in myofibril contraction?

ATP is bound to the myosin head to cause detachment of the head from the actin filament, the ATP is then hydrolysed and as a result the myosin head reattaches to the actin filament. The now hydrolysed ATP, i...
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Answered by Sam W. • Biology tutor
3505 Views

State where most water reabsorption takes place in the kidney. State also the process by which the water is reabsorbed.?

Most water reabsorption takes place in the proximal convoluted tubules, part of the nephrons in the kidney. Water is reabsorbed by a process called osmosis; the diffusion of water from an area of high water ...
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Answered by Dearbhail R. • Biology tutor
44096 Views

Describe the structural differences between DNA and RNA.

DNA is a double stranded macromolecule which is composed of nucleotides . The two DNA stands, joined by hydrogen bonds between the nucleotides and running antiparrallel to each other form a double helix stru...
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Answered by Annie A. • Biology tutor
12908 Views

How does the circulatory system work?

This system is made up of two main components: the heart and the vasculature. The heart is an organ with two sides, each of which is dedicated to carry out a different job. The right side receives deoxygenat...
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Answered by Nicholas W. • Biology tutor
4681 Views

Describe the events of translation in DNA to produce mRNA

answer should include the use of helicase to 'unwind' DNA, breaking of hydrogen bonds, template and/or coding strand, free RNA nucleotides in the nucleus binding to exposed bases, attraction of base pairs us...
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Answered by Bronte S. • Biology tutor
3361 Views