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GCSE

What is glucose homeostasis in a human?

Homeostasis describes the maintenance of the body’s internal environment. Glucose homeostasis is specifically referring to the control of the levels of sugar in the blood.
The pancreas is an organ, ...

FP
Answered by Francesca P. Biology tutor
3143 Views

n is an integer such that 3n + 2 < 14 and 6n/(n^2+5) > 1. Find all possible values of n.

First of all, solving the equation 3n + 2 < 14 to find n. 3n < 14 -2 = 3n < 12. n < 12/3 = n < 4Secondly solve the equation 6n/(n^2+5) > 1 to find n. Collect all terms on one side of the...

KP
Answered by Kai P. Maths tutor
20130 Views

Describe the process of carbohydrate digestion.

Mastication breaks down food into smaller chunks increasing the surface area for digestive enzymes to work on, and making it easier to swallow the food. The salivary gland secretes amylase which hydrolyse...

EK
Answered by Ela K. Biology tutor
3840 Views

Solve the quadratic equation (x^2)-x-12=0 (easy), (x^2)-9=0 (special case), (x^2)+5x-13=0 (quadratic formula)

For each of the above the methodology is fairly similar, first try and do it just by looking at it then try the quadratic formula if that doesn't work. At GCSE level I don't think there's any need to worr...

JE
Answered by Jack E. Maths tutor
3145 Views

Maths A Level: "Sketch the curve of the function f(x) = 2x^3 - 2x - 12 and show that the equation f(x)=0 has one root; calculate the root."

Consider the curve y = 2x^3 - 2x - 12.1) y-intercept. When x=0, y= -12 3) when x tends to infinity...y tends to infinity and when x tends to negative infinity...y tends to negative infinity 4) stationary ...

JI
Answered by Joseph I. Maths tutor
3030 Views

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