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Explain the sliding filament theory of muscle contraction

Muscle contraction begins after an action potential reaches the required muscle and causes the calcium ion protein channels on the sarcoplasmic reticulum to open. This allows the calcium ions to diffuse down...
IL
Answered by Isabel L. • Biology tutor
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What is differentiation and what can it tell me?

Differentiation is something you can do to a function, to tell you about the gradient of the function. For your simple linear, quadratic, cubic, etc. equations, the process is the same every single time. You...
OP
Answered by Oliver P. • Maths tutor
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A group of 44 pupils were asked if they owned a phone or a tablet. 5 people are known to own both 3 said they only owned a tablet 17 said they owned at least a phone A student is picked a random, what is the probability that the student doesn’t have

So in this question, there are 4 main people in this question; those who own ONLY a phone, ONLY a tablet, both a phone or a tablet or NONE. How do you think we could represent this information? Prompt studen...
NC
Answered by Niki C. • Maths tutor
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b)Plants can use the glucose they have made to supply them with energy. Give four other ways in which plants use the glucose they have made.

To make starch, oil, amino acids and cellulose.
ES
Answered by Emma S. • Biology tutor
10720 Views

a) Plants need energy to make glucose. How do plants get this energy?

Light is trapped, by the chloroplasts.
ES
Answered by Emma S. • Biology tutor
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