Hydrolysis of ATP Energy released during the reactions of respiration is transferred to the molecule?adenosine triphosphate?(ATP) ATP is a small and soluble molecule that provides a?short-te...
Evaluating the Watson-Crick Model Watson and Crick were two scientists who worked together to confirm the double-helix structure of DNA in 1953 Watson and Crick also came up with a model by ...
Edexcel IGCSE Maths 復(fù)習(xí)筆記 2.4.2 Factorising Quadratics - Harder What is a quadratic expression? A quadratic expression looks like this:ax2?+ bx + c (as long as a ≠ 0) Note: If there are any high...
Maths Skill: Frequency of Bases All DNA nucleotides contain the same phosphate group and deoxyribose sugar. The nitrogenous?base?attached to the sugar can vary between nucleotides There are?...
The Process of Semi-Conservative Replication DNA replication occurs in preparation for?mitosis, when a parent cell divides to produce two genetically identical daughter cells – as each daugh...
The Purpose of Semi-Conservative Replication Before?a (parent) cell?divides, it needs to?copy the DNA?contained within it This is so that the two new (daughter) cells produced will both rece...
Edexcel IGCSE Maths 復(fù)習(xí)筆記 2.4.1 Factorising Quadratics - Basics What is a quadratic expression? A quadratic expression looks like this:ax2?+ bx + c (as long as a ≠ 0) Note: If there are any high...
Appreciating How the Function of DNA Was Determined DNA was actually first observed in the 1800s by a Swiss scientist called Friedrich Miescher Miescher is credited with being the first pers...
Ribosomes Ribosomes are?small organelles?that are either?free?in the cytoplasm (of all cells) or are attached to the?rough endoplasmic reticulum?(only in eukaryotic cells) Ribosomes are the ...
