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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 m...

SM
Answered by Shabri M. Biology tutor
3721 Views

Describe two features of the October Manifesto (6 marks) (IGCSE)

One feature of the October Manifesto was that it enabled the Tsar to survive the revolution of 1905. This is because Nicholas II showed that he was prepared to make concessions by introducing reforms whic...

MG
Answered by Mary G. History tutor
8159 Views

Solve the simultaneous equations: 6x - 5y = 17, 3x + 8y = 10

First, you will need to make one of the variables x or y have the same number in front. To do this just multiply the equation by a constant which will give you lets say the x value in this equation with t...

JS
Answered by Jagjit S. Maths tutor
4215 Views

Describe the part played by each of the organelles involved in the production and secretion of the enzymes.

  1. 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 all...
AM
Answered by Aoife M. Biology tutor
2958 Views

Prove that the square of an odd number is always 1 more than a multiple of 4.

First we consider how to represent an odd number. We know that any even number can be represented as 2k for some integer k since, by definition, all even numbers are multiples of 2. We also know that all ...

JL
Answered by Josh L. Maths tutor
8596 Views

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