Top answers

Why is oxygen needed in respiration?

In respiration, as you know the electrons travel through the electron transport chain and provide the energy to pump Hydrogen ions across the inner membrane. Once they reach the end of the chain, where do th...
EJ
Answered by Emma J. • Biology tutor
16200 Views

Lithium and potassium are both in Group 1 of the periodic table. Explain why.

Li and K both have one electron in their outer shell and therefore perform chemical reactions in a similar way and share certain characteristics.
JD
Answered by Joshua D. • Chemistry tutor
3767 Views

Describe three differences between a motor neurone and a sensory neurone.

A motor neurone has no or a very short dendron whereas a sensory neurone has a long dendron. A sensory neurone's cell body is found 'in the middle' of the neurone whereas a motor neurone's cell body is found...
JD
Answered by Joshua D. • Biology tutor
9324 Views

Define the term osmosis.

Osmosis is the net movement of water molecules from an area of high water potential to low water potential, commonly across a partially permeable membrane such as a cell's surface membrane.
JD
Answered by Joshua D. • Biology tutor
3556 Views

Solve 13-x > 3+4x

13-x-3>4x 10>4x+x 10>5x 2>x x<2
NE
Answered by Nathan E. • Maths tutor
5591 Views