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Explain the process of skeletal muscle contraction and why glucose is required for this process.

In skeletal muscle there exists a thick filament, myosin, and a thin filament, actin. For contraction both of these filaments need to interact causing a power stroke and muscle contraction. At rest, the myos...
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Answered by Shabri M. • Biology tutor
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Describe the part played by each of the organelles involved in the production and secretion of the enzymes.

The Nucleus contains the DNA code for the amino acid sequence (2) 3. The Nucleolus makes rRNA (4) 5. The Ribosomes translate mRna in protein synthesis 6. The endoplasmic reticulum allows for the transport of...
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Answered by Aoife M. • Biology tutor
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Use your knowledge of Water Potential applied to the GIT to describe what can cause or prevent Constipation

Water Potential is the measure of the ability of water molecules to move freely in solution. A solution of pure water where there is no solute and all of the water molecules are free to move, the water poten...
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Answered by Teresa M. • Biology tutor
10874 Views

You have a five-litres jug, a three-litres jug, and unlimited supply of water. How would you come up with exactly four litres of water (with no measuring cup)?

You fill the 5-litres jug, and pour it into the 3-litres jug until it's full (now you have 2 litres in the 5-litres jug). Then, you pour out the 3-litres jug completely. Now, you pour the 2 litres from the 5...
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Answered by Diana G. • Maths tutor
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Given an unlimited number of light bulbs (that break at a certain height), and a building with 100 floors, how do you determine the height that the light bulb breaks?

The solution is a binary search algorithm (where you start on floor 50th and move up or down depending if the bulb breaks or not, always picking the middle floor of your option range).
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Answered by Diana G. • Computing tutor
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