Cell Structure Flashcards
What is the cell wall made of
Cellulose
What does the cell wall do
Gives strength and makes it less flexible
Where is the Cell membrane found
Usually found inside the cell wall
What is the cell membrane made up of
Phospholipids and proteins
What does the nucleus contain and give examples
Cells genetic info eg. rna dna snd proteins
What does the nucleus control
The activities of the cell
What does the nucleus make
Ribosomes
Mitochondria
Supply energy to the cell in a process known as respiration
Cells with a lot of mitochondria produce a lot of..?
Energy
What part of the mitochondria produce energy
Inner membranes
Ribosomes
Red dots in cells. Their function is to make proteins
Cytoplasm
Clear jelly like fluid in cells. Contains the living material in a cell outside the nucleus
Chloroplast
Function is photosynthesis
What is the cell wall is composed of
Cellulose fibre polyaccharids and proteins
Function of cell wall
Support and strengthen the cell
Vacuoles
Membrane bound sacs within the cytoplasm of a cell
What do vacuoles provide
Structural support and serving functions such as storage waste disposal, protection and growth
Plant cells have..
Large vacuoles
Ultrastructure
The detail of a structure as seen using an electron microscope
Electron microscope can
Produce images very clearly which is ideal for observing very small objects
Function of the membrane
Retain the cell contents
Recognise molecules that touch them
Give some support to the cell
What supply energy to the cell
Mitochondria
What does RNA mean
Ribonucleic acid
What makes ribosomes
The nucleus
Genes are
Structures that inform the cell how to make certain proteins
Prokaryotic cells
Do not have a nucleus or membrane-enclosed organelles
Name three features of prokaryotic organisms
Single celled
Have small cells
Include bacteria
Eukaryotic cells
Who’s cells have a nucleus enclosed within membranes
Name three features of eukaryotic organisms
Have a nucleus
Have large cells
Include animals, plants and fungi
Coverslip is placed at a..
45 degrees angle
Chromatin
Name given to chromosomes that are getting bigger and not dividing
What is the main role of DNA in a cell
Long term storage of information
Protoplasm
All the living parts of the cell
