Cell Biology Flashcards
(18 cards)
What does the nucleus do?
controls the cell
What are the two kinds of cells?
Prokaryotic and Eukaryotic
What happens in the cytoplasm?
Chemical Reactions
What type of cell is bacteria?
Prokaryotes
What DOESN’T a bacteria cell contain?
nucleus,chloroplasts and mitochondria
What is a specialised cell?
A cell that has become differentiated to carry out a particular function
What is a sperm cell specialised for?
Reproduction
What is a nerve cell specialised for?
Rapid signalling
What are muscle cells specialised for?
Contraction
What are root hair cells specialised for?
Absorbing water and minerals
What is differentiation?
The process by which a cell changes to become specialised for its job.
What are chromosomes?
coiled up lengths of DNA
What happens in binary fission?
the cell splits into two
What is mitosis?
a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus
What does the cell membrane do?
Controls what goes in and out the cell?
Where can you get stem cells from?
Bone marrow and embryo
What is osmosis?
the movement of water molecules
What is diffusion?
The spreading out of particles from a area of high concentration to a low concentration
