4224123
Description
Mind Map by Niamh Taylor, updated more than 1 year ago
|
Created by Niamh Taylor
over 10 years ago
|
|
Unit 1 KA 1+2
- KA 1 - Cell Structure
- Cell structure and
function
- Cell Membrane - Outer
covering of the cells that
regulates what can enter or
leave
- Cytoplasm - The watery substance
found inside cells where all the
chemical reactions take place
- Nucleus - Controls all
the activities of the cell
and contains genetic
material
- Chloroplast - Structure found in
green plant cells that contains
chlorophyll and where
photosyntheis take places
- Vacuole - a membrane-bound sac found
in plant cells containing a watery
solution giving support
- Cell wall - Outer covering of
plant cells giving support
and is made of cellulose
- Mitochondrion - cylindrically
shaped structure found within the
cytoplasm of cells that is the site of
energy release in aerobic
respiration
- Ribosome - small structure that is
the site of protein synthesis in a
cell
- Cell Membrane - Outer
covering of the cells that
regulates what can enter or
leave
- In multicelluar organisms, cells become specialised
to perform particular functions. for example, the
cells which line the cheek form a continous layer of
cells that are the same size and shape, while cells in
a leaf group themselves to form protective
coverings or areas where photosynthesis takes
place.
- Yeast is an example of a fungus,
that lives as a single celled
organism.
- Bacteria are single celled organisms.
- Cell structure and
function
- KA 2 - Transport across cell membrane
- Cell membrane
- selectively permeable
- allows small molecules such as oxygen and carbo
dioxide pass through but not larger molecules such as
proteins
- allows small molecules such as oxygen and carbo
dioxide pass through but not larger molecules such as
proteins
- selectively permeable
- Passive transport
- diffusion
- When a molecule moves from an area of high
concentration to an area of low concentration
along a concentration gradient, a passive form of
transport
- When a molecule moves from an area of high
concentration to an area of low concentration
along a concentration gradient, a passive form of
transport
- Osmosis
- When water molecules move from an area of high concentration to
an area of low concentration along a concentration gradient,
across a semi - permeable membrane, this a form of passive
transport
- When water molecules move from an area of high concentration to
an area of low concentration along a concentration gradient,
across a semi - permeable membrane, this a form of passive
transport
- diffusion
- Active Transport
- When a molecule moves from a area of low concentration to an area
of low concentration against a concentration gradient, this is an active
form of transport
- When a molecule moves from a area of low concentration to an area
of low concentration against a concentration gradient, this is an active
form of transport
- Cell membrane
Media attachments
Want to create your own Mind Maps for free with GoConqr? Learn more.