Science B3: Molecules of life

Mitochondira:

What's in a cell?

DNA: - Molecule that is tighlty coiled inside the nucleus of a cell and it forms structures called chromosomes.

- One section of a chromosome is called a gene.

Mitochrondria: - Cell respiration is carried out in the mitochondria.During the respiration energy is released from glucose in the presence of oxygen. 

- Liver & muscle cells need large amounts of energy to carry out their functions and this is why they need more mitochondria.

DNA & chromosomes:

Chromosomes = long coiled molecules of DNA divided up into regions called genes.

- DNA molecules have two strands coiled to a double helix and this double helix has cross links made of chemicals called bases.

- There are 4 different bases in DNA and these are A&T, G&C.

Ribosomes:

- A ribosome is a structure inside a cell that easily be seen.

- Ribosomes are found inside the cyptoplasm and they are used when protein is being made.

Genetic code:

- All…