Cell Structure Flashcards
What are eukaryotic cells?
Plant and animal cells
What do eukaryotic cells have?
A cell membrane, cytoplasm and genetic material enclosed in a nucleus
What are prokaryotic cells?
Bacterial Cells
What do prokaryotic cells contain?
A cytoplasm, cell membrane and a cell wall. They also contain plasmids which are single DNA loops which is where the genetic material is enclosed.
What’s the main difference between prokaryotic and eukaryotic cells?
Eukaryotic have a nucleus whereas the prokaryotic don’t.
Most animal cells have…
Nucleus Cytoplasm Cell membrane Mitochondria Ribosomes
Most Plant Cells have:
Nucleus Cytoplasm Cell Membrane Mitochondria Ribosomes Chloroplasts Permanent vacuole filled with cell sap Cell Wall (to strengthen
What’s differentiation?
The process where cells become specialised.
Where does differentiation happen in animal cells?
It happens in the embryo and is permanent.
When does differentiation happen in plant cells?
It happens at anytime and is reversible.
Why do you need more cells?
Growth, repair and replacement.
what make an electron microscope so special?
They have a much higher magnification resolving power than light microscopes which means that they can see sub-cellular structures (ribosomes) and gain a better understanding of their functions.
The formula for microscopy is…
Magnification x Object size = Image size
