Animal cells have fewer parts to them,
unlike plants. Plants have more features
like vacuole, chloroplasts and cell wall
but also they have similarities such as
the nucleus, cell membrane, and
cytoplasm.
State what the functions of
them are ?
Cell wall/Cell membrane: Keep
the bad(unnecessary) things
from not coming into the cell
and protect the cell from keep
its structure
Cytoplasm:
It is a
jelly-like
substance
where all
the
chemical
reactions
take place
Vacuole: It is the
food and water
storage place of
the cell
Nucleus: It is the power of the cell which contains the
genetic information of the cell called the DNA
Chloroplast: It is only found in the plant
cell. It gives the color green to the cell
Relate the structure of the following to
their functions:
Ciliated cells: helps the
movement of mucus in the
trachea and bronchi as it helps
the mucus not get stuck and just
let it flow.
root hair cells– It is very long and which helps the roots to find the
water in deep ground
xylem vessels – conduction and support
– palisade mesophyll cells – photosynthesis
Nerve cells –
conduction of
impulses
red blood cells
– transport of
oxygen
sperm and egg cells
– reproduction
Define tissue as a group of cells with similar structures, working together to
perform a shared function
Tissue is made up of a group
of cells joined together to
perform a specific function in
the body
Define organ as a structure made up of a
group of tissues, working together to
perform specific functions
An organ is group of tissues
joined together to perform a
specific function for the organ
to work
Define organ system as a group of
organs with related functions,
working together to perform body
functions
State examples of tissues, organs and organ systems
Tissue- Muscle
Organ- Heart
Organ System-
Respiration System
Calculate magnification and size of
biological specimens using
millimetres as units
Define diffusion
the net movement of particles from a
region of their higher concentration to a
region of their lower concentration
down a concentration gradient, as a
result of their random movement
Describe the importance of
diffusion of gases and solutes
Define
Osmosis and stucture.
Water diffuses through partially permeable
membranes by osmosis.Water moves in and
out of cells by osmosis through the cell
membrane.Plants are supported by the
pressure of water inside the cells pressing
outwards on the cell wall
Investigate and describe the effects on plant
tissues of immersing them in solutions of different
concentrations
The cell tissue will denature
or burst according to how
hypertonic or hypotonic it is
Define active transport
as the movement of particles through a cell
membrane from a region of lower
concentration to a region of higher
concentration using energy from respiration