Zusammenfassung der Ressource
B2.1 Cells and Simple Cells Transport
- Different Cells
- Animals
- nucleus
- controls cell activities, and it is
where genetic material is contained
- cell membrane
- holds the cell
content together
- mitchondria
- energy is released from respiration-
glucose is burned to release the energy
- cytoplasm
- where most chemical reactions
occur usually via enzyme catalysts
- ribosomes
- protein-synthesis from
amino acids occur
- Plants
- cell wall
- made of cellulose strengthens
the cell and plant structure.
- chloroplasts
- absorb sunlight energy to
make food via photosynthesis
- permanent vacuole
- filled with cell sap that contains
sugars and mineral salts
- + all the other parts of
cell like an animal cell.
- Bacteria
- cell wall
- cytoplasm
- large chromosomal ring of DNA
- Plasmid ring of DNA
- NOT in a distinct nucleus, more
of a jumbled cluster.
- Flagella
- NO NUCLEUS
- Yeast is a
single-celled organism
- Specialised Cells
- Animals
- Red Blood Cells
- carry oxygen via their
haemoglobin molecules
- White Blood Cells
- help out in the
immune system
- Gamete Cells
- Sexual Reproduction cells
(egg cell and sperm cell)
- Plants
- Palisade Leaf structures are adapted
to suit the photosynthesis site.
- Guard cells open and close the
stomata- this allows oxygen and
carbon dioxide to pass in or out.
- Diffusion- when dissolved substance
can come into or out of the cell from
the cell membrane.
- It is the spreading of gas or substance in
solution, which results in the movement
from a region of high concentration to a
region of low concentration
- it is a spontaneous movement
- the greater the difference in
concentration, the faster the
rate of diffusion.
- only relatively small molecules can
diffuse through the cell membrane
- e.g. amino acids, not proteins
- or sugars like glucose and not
carbohydrates like starch.
- oxygen required for respiration
diffuses through the membrane.