Save
Biology
Paper 1
Cells
Save
Share
Learn
Content
Leaderboard
Learn
Created by
Sarah Darlington
Visit profile
Cards (18)
What is
Mitosis
Process of a cell dividing to produce
2
new cells that are
identical
(
daughter
cells)
How many chromosones do the daughter cells have
46
each
What happens is stage
1
of the cell cycle
Cells
grow
DNA
replicates
What happened as stage 2 of the cell cycle
Mitosis
nucleus
splits
what happens at stage 3 of cell cycle
Cytoplasm and cell
membrain
divide
2
identical
cells are made
what
subcellular structures are in a animal cell (
eukaryotic
cells)
Cell
membrane
nucleus
cytoplasm
mitochondria
ribosome
What is the subcellular structure of a plant cell (
eukaryotic
cells)
Cell membrane
cell wall
vacuole
nucleus
chloroplasts
cytoplasm
mitochondria
Definition
: specialised cell
A
cell
that has a specific role and
structure
in the body
examples of specialised cells
nerve cells
sperm cells
muscle cells
Plant examples of specialised cells
root hair cells
phloem cells
xylem cells
Definition - diffusion
Movement of molecules from a
high
concentration to a
low
concentration ( doesn’t require energy)
Factors that influence diffusion
Concentration
temperature
surface
area
Definition: Osmosis
Diffusion of
water
molecules
from a high water cone to a lower water concentration
Definition : partially permeable membrane
Membrain with
tiny
holes
to allow small molecules to pass through it
Definition : Active transport
Particles moving up the
concentration
gradient if
energy
is used ( digestive system)
Give an example of a prokaryotic cell?
Bacteria cell
What is a key diff between eukaryotic and prokaryotic cells
Bacteria cells don’t have enclosed
DNA
instead they have singular loops called
plasmids
Which cells are the smallest
Prokaryotic
(bacteria cells)