ions Flashcards
1
Q
What is an ion?
A
Atom with a different number of electrons
2
Q
What role does phosphate have? [2]
A
In DNA nucleotides 》 enables nucleotides to join together and form phosphodiester bonds
In ATP 》 Bonds between phosphates store and release energy
3
Q
What role does Hydrogen have?
(H+)
A
Maintains pH levels in body 》 effects rate of reaction and denaturing of enzymes
4
Q
What role does Iron have? (Fe2+) [1]
A
Component of haemoglobin in red blood cells 》 transports oxygen around the body
5
Q
What role does Sodium have? (Na+) [1]
A
Cotransport of glucose and amino acids across cell membranes
