AQA GCSE BIOLOGY EXAM. QUESTINS WITH 100% CORRECT ANSWERS.

AQA GCSE Biology Exam
Tissue
A group of cells working together to perform a function E.g. Skin, muscle, liver, brain




Cell
The building blocks of all living organisms. Cells can be prokaryotic or eukaryotic




Eukaryote
Plant and Animal cells are eukaryotic cells as they have a cell membrane, cytoplasm
and a nucleus




Prokaryote
Bacterial cells are prokaryotic cells as they are very very small have a cell wall
around their cell membrane and they do not have a nucleus




Cell Membrane
An envelope that surrounds the cell and lets substances in and out

, Nucleus
Contains DNA and controls the cells activity




Cytoplasm
The jelly centre of the cell which holds the sub-cellular structures and is where all
the chemical reactions happen




Cell Wall
Only found in plant cells and bacterial cells. In plant cells the cell wall is made of
cellulose




Single DNA Loop
In prokaryotic cells (bacteria) the DNA is found as a single loop




Plasmid
A small ring of DNA found in prokaryotic cells (bacteria)




Mitochondria
This is where respiration happens in cells which gives the cells energy