Prokaryotes and viruses Flashcards
how is mitochondria adapted to its function
Mitochondria have a double membrane structure, with an inner layer with many folds to create a high surface area. This provides more space for more metabolising proteins and therefor they are able to create more energy at one time.
how is the chloroplast adapted to its function
the thylakoids stack together to make the granum which increases surface area in turn,increasing light absorption
how is the nucleus adapted to its function
The shape of the nucleus is mostly round, it may be oval, disc shaped depending on the type of cell. … The envelope helps to maintain the shape of the nucleus and assists in regulating the flow of molecules into and out of the nucleus through nuclear pores.
what are the squiggly lines in nucleus
chromatin,containing genetic information
where are eukaryotes found
plants and animals
where are prokaryotes found
bacteria
where are akaryotes found
viruses
do prokaryotes have a nucleus
no
where is the dna in a prokaryote
free floating
what shape is dna in a prokayote
circular
what does the cell wall contain in a prokaryote
murein
what type of capsule doe a eukaryote have
a slime capsule
does a eukaryote have membrane bound organelles?
no
what are histones
Histones are a family of basic proteins that associate with DNA in the nucleus and help condense it into chromatin.
is dna attached to histones in prokaryotes?
Histones are a family of basic proteins that associate with DNA in the nucleus and help condense it into chromatin.
do eukaryotes have a nucleus?
yes
what is the nucleus in eukaryotes bound to
membrane
where is the dna found in a eukaryotic cell
the nucleus
what shape is the dna in a eukaryotic cell
long and linear
is the dna in eukaryotes attached to histones?
yes
what are the organelles bound to in eukaryotic cells
membrane
in eukaryotic plant cells what is the cell wall made of
cellulose
in eukaryotic fungi cells what is the cell wall made of
chitin
does a eukaryotic cell have a slime capsule?
no
viruses are just nucleic acids surrounded by______
protein
are akaryotes bigger or smaller than eukaryotes
smaller
what in akaryotes makes them stick to the host cell
protein coat (capsid)
what organelles do akaryotes have
none,no cyctoplasm either
how big is a eukaryotic cell
70s
how big is a prokaryotic cell
80s
does respiration or protein synthesis occur in akaryotic cells?
no
