Cell Biology : Prokaryotic vs Eukaryotic
Is a prokaryotic cell simple or complex & is a eukaryotic cell simple or complex?
Eukaryotic : Complex
How many cells does mitosis produce? How many cells does meiosis produce?
Mitosis = 2
Meiosis = 4
what is considered the powerhouse of the cell
mitochondria
what is the definition of population?
All of the organisms of a particular species that live in the same area at the same time
what is the definition of biodiversity?
Number & variety of organisms in an area
which type of cell contains a nucleus and membrane bound organelles?
Eukaryotic
How many divisions does mitosis have? How many divisions does meiosis have?
Mitosis = 1
Meiosis = 2
what does the nucleus contain? what is its job?
its the control center which contains DNA
what is the definition of evolution?
Change in a kind of organism over time
what is the definition of speciation?
Formation of new species
Do both prokaryotic cells and eukaryotic cells contain ribosomes?
yes
What does mitosis produce? What does Meiosis produce?
Mitosis = new cells for growth and repair
Meiosis = egg and sperm cells
what is made of RNA?
ribosome
what is the definition of genetic diversity?
The total of all the different forms of genetic information carried by organisms in a given area or population
what is the definition of adaption?
Inherited characteristics that increases an organism’s chance of survival and reproduction compared to other organisms in that population
eukaryotic
How many chromosomes mitosis produce? How many chromosomes does meiosis produce?
meiosis = half the chromosomes number of original cell
where does photosynthesis take place? what type of cell?
chloroplasts which is found in eukaryotic cells
what is the difference between natural selection and artificial selection?
natural : Process by which individuals of a population with the most successful adaptations to their environment are most likely to survive and reproduce.
artificial : When a breeder selects individuals with particular traits and breeds individuals with those traits
what does a fossil show?
Show how groups of organisms have changed over time
list examples of prokaryotic cells and eukaryotic cells
prokaryotic : bacteria & archaebacteria
eukaryotic : protests, fungi, plans & animals
What occurs after meiosis?
egg + sperm = zygote/fertilized egg
why are centrioles important?
produces spindle fibers for cell division
What are the sources of genetic variations?
- mutations
- meiosis
- crossing over
what are 4 evidences of evolution?
- fossil record
- homologous structures
- vestigial structures
- similarities in DNA sequences
- similarities in embryology
- similarities in amino acid sequences of a protein