Cell Structure Alevel

Front 1

Cell membrane / plasma membrane

Back 1

Structure - made of lipids and proteins, it is the same on plant and animal and bacterial cells.
Function - regulates movement of substances in and out, it also has receptor cells on the surface soit can respond to chemicals like hormaones.

Front 2

Rigid Cell Wall

Back 2

Structure - made of cellulose
Function - It supports plat cells

Front 3

Nucleus

Back 3

Structure - surrounded by a nuclear envelope (double membrane)
Function - the pores alow substances to pass in and out of the nucleus.

Front 4

Nucleolus

Back 4

Structure - not an organelle but a dense patch made of chromatin (proteins and DNA)
Function - makes ribosomes.

Front 5

Lysosome

Back 5

Structure - a round organelle with no clear structure.
Function - Contains digestive enzymes that are used to digest inv microorg. or worn out cell components.

Front 6

Ribsome

Back 6

Structure - very small found either floating free or attached to rough endoplasmic reticulum.
Function - the site where proteins are made.

Front 7

Rough Endoplasmic Reticulum (RER)

Back 7

Structure - a system of membranes enclosing a fluid filled space. The surface covered with ribosomes.
Function - Folds and processes proteins made at ribosomes.

Front 8

Smooth Endoplasmic Reticulum

Back 8

Structure - similar to RER but with no ribosomes.
Function - synthesises and processes lipids.

Front 9

Golgi Apparatus

Back 9

Structure - Fluid filled flattened sacs with vesicles seen at the edges.
Function - Processes and packages lipids and proteins and makes lysosomes.

Front 10

Mitochondria

Back 10

Structure - oval shaped, double membrane, inner membrane folded to make cristea. Enzymes inside the matrix.
Fuction - Site of aerobic resp where ATP is found.

Front 11

Chloroplasts

Back 11

Structure - flattened double membrane. Membranes inside called thylakoid membranes that stack up to form grana which are linked by lamellae.
Function - site of photosynthesis.

Front 12

Centriole

Back 12

Structure - small hollow cylinders containing ring of microtubules.
Function - involved with the separation of chromosomes during cell division.