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Explain the functions of the different cell structures in an animal cell

Nucleus - contains the DNA allowing it to control the cells activities. It is the site of transcription where DNA is made into RNA. Ribosomes - the site of protein synthe...

WM
Answered by William M. • Biology tutor
2495 Views

Define osmosis

The (passive) movement of water from an area of high water potential to low water potential across a partially permeable membrane

DD
Answered by Daria D. • Biology tutor
2836 Views

Translate the following sentences into Spanish: (1) I bought a new laptop on Saturday. (2) I think that I am going to study Spanish next year.

(1) Compré un nuevo ordenador portatil el domingo.(2) Creo que voy a estudiar el espanol el ano que viene.

GB
Answered by Gabrielle B. • German tutor
2043 Views

Can you explain the process of ultrafiltration and selective readsorption?

Ultrafiltration and selective reabsorption are processes which occurs in the kidney to filter the blood. In ultrafiltration, the blood is under a high pressure in the glomerulus

DS
Answered by Daniel S. • Biology tutor
13937 Views

Let f(x) = x^3 -2x^2-29x-42. a)Show (x+2) is a factor b)Factorise f(x) completely

a) To show (x+2) is a factor, we want to show f(-2)=0. So (-2)^3-2(-2)^2 -29(-2)-42=-8-8+58-42=0
b) Divide  x^3 -2x^2-29x-42 by x+2 to get x^2-4x-21 which we factorise to get (x+3)(x-7). Hence f(x)=(...

Answered by • Maths tutor
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