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Beschreibung
Mindmap von Alice Emilie Gray, aktualisiert more than 1 year ago
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Erstellt von Alice Emilie Gray
vor mehr als 10 Jahre
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Biology topic 3
- AEROBIC RESPIRATION
- glucose + oxygen --> carbon dioxide + water + energy
- glucose + oxygen --> carbon dioxide + water + energy
- DIFFUSION
- high concentration to low
- in circulatory system
- in respiration
- diffusion of CO2 in
- diffusion of O out
- diffusion of glucose out
- diffusion of CO2 in
- in respiration
- high concentration to low
- EXERCISE
- blood is pumped faster
- respires faster
- o2 and glucose
out faster, co2 in
faster
- o2 and glucose
out faster, co2 in
faster
- respires faster
- heart rate
- breathing rate
- o2 taken in faster
- co2 released faster
- o2 taken in faster
- cardiac output=stroke volume x heart rate.
- stroke volume = volume of
blood pumped by the heart
in one beat
- stroke volume = volume of
blood pumped by the heart
in one beat
- blood is pumped faster
- ANAEROBIC RESPIRATION
- glucose=lactic acid +energy
- release of energy w/o using o2
- ads
- allows muscle to
contract even when
the heart and lungs
cannot deliver o2 fast
enough
- allows muscle to
contract even when
the heart and lungs
cannot deliver o2 fast
enough
- disads
- releases much less energy
- lactic acid is not removed from
the body, it builds up in the
blood and must be broken
down.
- releases much less energy
- glucose=lactic acid +energy
- EPOC
- excess post-exercise
oxygen consumption
- excess post-exercise
oxygen consumption
- PHOTOSYNTHESIS
- process plants use to
make glucose
- carbon dioxide + water -energy from light->>
glucose + oxygen
- chlorophyll in
chloroplasts
capture light energy
needed for PS.
- stomata in the leaf
surface allows carbon
dioxide needed for PS to
diffuse into the leaf.
- they also allow o2
and water vapour
produced by PS to
disuse out of the
leaf.
- process plants use to
make glucose
- LIMITING FACTORS
- low temp, dim light, low co2 conc.
- can be measured by
the rate at which o2 is
given off by a piece of
pondweed
- low temp, dim light, low co2 conc.
- WATER TRANSPORT
- substances dissolved
in the water are
transported around
plants by veins
- veins contain
tissues called
xylem and
phloem
- veins contain
tissues called
xylem and
phloem
- water and dissolved minerals enter through roots
- travel in xylem to rest of the plant
- glucose (made in leaves by PS) converted to sucrose
- sucrose transported in phloem to rest of plant
- sucrose transported in phloem to rest of plant
- glucose (made in leaves by PS) converted to sucrose
- travel in xylem to rest of the plant
- transpiration
- evaporation of water from
inside leaves to the outside
air
- evaporation of water vapour from leaves
- draws water out of the leaf cells and xylem
- draws water up xylem from roots
- water enters roots by osmosis
- water enters roots by osmosis
- draws water up xylem from roots
- draws water out of the leaf cells and xylem
- evaporation of water from
inside leaves to the outside
air
- active transport
- subs move up or against their conc gradient
- needs energy so subs can move
- subs move up or against their conc gradient
- osmosis
- diffusion of water molecules
- diffusion of water molecules
- substances dissolved
in the water are
transported around
plants by veins
- OSMOSIS
- net movement of water
molecules from high to
low conc through a
partially permeable
membrane
- net movement of water
molecules from high to
low conc through a
partially permeable
membrane
- ORGANISMS AND
ENVIRONMENT
- pooter
- sweeper net
- pitfall trap
- quadrats
- quadrats
- pitfall trap
- sweeper net
- pooter
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