homeostasis & response
SETS
What is homeostasis?
What is the purpose of homeostasis?
What does a receptor do?
What is a stimulus?
The regulation of internal conditions in a cell or organism
To maintain optimum conditions for enzymes and cell function.
Detects a change in the environment (stimulus)
A change in the environment
What is homeostasis?
The regulation of internal conditions in a cell or organism
What is the purpose of homeostasis?
To maintain optimum conditions for enzymes and cell function.
What is homeostasis?
What conditions are controlled in the h…
The automatic control systems may invol…
What does the nervous system allow us t…
Homeostasis maintains optimal conditions for enzyme action thr…
blood glucose concentration, body temperature, water levels
nervous responses (nervous system) or chemical responses (endo…
React to their surroundings and to coordinate their behaviour
What is homeostasis?
Homeostasis maintains optimal conditions for enzyme action thr…
What conditions are controlled in the h…
blood glucose concentration, body temperature, water levels
What is homeostasis?
What does homeostasis control?
What do all control systems include?
How is the structure of the nervous sys…
the regulation of the internal conditions of a cell or organis…
Blood glucose concentration... Body temperature... Water levels
Receptors, coordination centres and effectors
Neurones are adapted to carry electrical impulses from one pla…
What is homeostasis?
the regulation of the internal conditions of a cell or organis…
What does homeostasis control?
Blood glucose concentration... Body temperature... Water levels
What is homeostasis?
Give examples of conditions maintained…
What two types of response are used in…
What three components to all control sy…
Maintaining a constant internal environment
-Blood glucose conc... -Body temperature... -Water levels
Nervous and chemical
Receptors... Coordination centres... Effectors
What is homeostasis?
Maintaining a constant internal environment
Give examples of conditions maintained…
-Blood glucose conc... -Body temperature... -Water levels
Why is it important for conditions in y…
"What is Homeostasis?
What are automatic control systems?
What make up automatic control systems?
Cells need right conditions to function especially for enzyme…
Regulation of conditions inside body and cells to maintain a s…
They regulate your internal environment including nervous and…
-Receptors... -Coordination centres... -Effectors
Why is it important for conditions in y…
Cells need right conditions to function especially for enzyme…
"What is Homeostasis?
Regulation of conditions inside body and cells to maintain a s…
what is homeostasis?
why is it important for conditions in t…
what is negative feedback?
name the different parts of the nervous…
the ability to main a stable internal environment in response…
so cells and enzymes can function properly
Body REVERSES an original stimulus to regain balance
receptors, effectors > central nervous system > sensory, motor…
what is homeostasis?
the ability to main a stable internal environment in response…
why is it important for conditions in t…
so cells and enzymes can function properly
What is homeostasis?
Why is homeostasis important?
Homeostasis controls:
All control systems include:
The regulation of the internal conditions of a cell or organis…
It keeps conditions for enzyme action and cell functions
- blood glucose concentration ... - body temp... - water and ion lev…
- receptor cells ... - coordination centres (brain, spinal chord…
What is homeostasis?
The regulation of the internal conditions of a cell or organis…
Why is homeostasis important?
It keeps conditions for enzyme action and cell functions
Homeostasis
Automatic Control Systems
Components of ACS
Negative feedback
Regulation of conditions inside body to maintain a stable inte…
Systems that regulate your internal environment
Stimulus --> receptors --> coordination centre --> effectors -…
When a condition is changed, body uses it to return those cond…
Homeostasis
Regulation of conditions inside body to maintain a stable inte…
Automatic Control Systems
Systems that regulate your internal environment
What is homeostasis?
Why is homeostasis important?
What can homeostasis include the contro…
What might the control systems of homeo…
The regulation of internal conditions in a cell or organism is…
It keeps conditions constant for enzyme activity and cell func…
Blood glucose, body temperature, water and ion levels
Responses using nerves, chemical response using hormones
What is homeostasis?
The regulation of internal conditions in a cell or organism is…
Why is homeostasis important?
It keeps conditions constant for enzyme activity and cell func…
what is homeostasis?
what do all control systems include?
how is the nervous system adapted to it…
describe a reflex arc
the regulation of the internal conditions of a cell or organis…
-receptor cells (detect stimuli)... -coordinators (e.g. brain, sp…
nervous system enables humans to react to their surroundings a…
Stimulus (e.g. hot flame)... --> detected by receptor... --> electri…
what is homeostasis?
the regulation of the internal conditions of a cell or organis…
what do all control systems include?
-receptor cells (detect stimuli)... -coordinators (e.g. brain, sp…
Components of CNS?
synapses?
Reflex action?
components of a reflex arc?
brain and spinal cord
gaps between neurons
An unconscious response that allows a person to respond to a d…
Stimulus, receptor, neurones, effector, response
Components of CNS?
brain and spinal cord
synapses?
gaps between neurons
What is Homeostasis
What does Homeostasis control?
What do all control systems include?
What do the Brain, Spinal Cord and Panc…
the regulation of the internal conditions of a cell or organis…
Blood glucose concentration... Body temperature... Water levels
- Receptors = detect stimuli (change in environ.)... - coordinati…
Brain - info from receptors & sends signals to muscles and gla…
What is Homeostasis
the regulation of the internal conditions of a cell or organis…
What does Homeostasis control?
Blood glucose concentration... Body temperature... Water levels
What do cells require?
What is homeostasis?
What does homeostasis maintain?
Homeostasis controls?
Constant temperature, pH, supply of water and dissolved food
Homeostasis is the regulation of internal conditions of a cell…
The optimal conditions for enzyme activity and cell functions
Blood glucose concentration... Body temperature... Water levels
What do cells require?
Constant temperature, pH, supply of water and dissolved food
What is homeostasis?
Homeostasis is the regulation of internal conditions of a cell…
definition of homeostasis
what does homeostasis maintain
what three things in the body does home…
what do all control systems include
regulation of the internal conditions of a cell or organism to…
Homeostasis maintains optimal conditions for enzyme action and…
- blood glucose concentration... • body temperature... • water level…
- cells called receptors, which detect stimuli (changes in the…
definition of homeostasis
regulation of the internal conditions of a cell or organism to…
what does homeostasis maintain
Homeostasis maintains optimal conditions for enzyme action and…
What is homeostasis?
Why is homeostasis important?
What are the two automatic control syst…
What do your control systems maintain
Maintaining a stable internal environment in response to chang…
It keeps conditions constant for enzyme action and cell functi…
Nervous and hormonal communication
Body temperature, glucose level, water content
What is homeostasis?
Maintaining a stable internal environment in response to chang…
Why is homeostasis important?
It keeps conditions constant for enzyme action and cell functi…
Define Homeostasis
Why does homeostasis need to maintain o…
List three conditions that the body nee…
What do the two automatic response syst…
The regulation of the internal conditions of a cell or organis…
For enzyme action and all cell functions.
- Blood glucose concentration... - Body temperature... - Water levels
- Nervous responses ... - Chemical responses
Define Homeostasis
The regulation of the internal conditions of a cell or organis…
Why does homeostasis need to maintain o…
For enzyme action and all cell functions.
Define homeostasis
What are controlled in the human body ?
What are receptors?
What is a stimuli?
The maintainable of constant internal environment for cell fun…
• blood glucose concentration ... • body temperature ... • water lev…
Cell which detect stimuli
A change in the environment
Define homeostasis
The maintainable of constant internal environment for cell fun…
What are controlled in the human body ?
• blood glucose concentration ... • body temperature ... • water lev…
Define homeostasis
The automatic system control
what is the automatic system control ma…
Negative feedback
regulates the condition inside the body to maintain a stable i…
is used to maintain an internal stable environment. Have nervo…
receptors... coordination center- brain, spinal cord and the panc…
counteracts change and brings back to normal
Define homeostasis
regulates the condition inside the body to maintain a stable i…
The automatic system control
is used to maintain an internal stable environment. Have nervo…
Homeostasis
Nervous system consists of
Stimulus
Recepteo
The regulation of conditions in the body including water level…
CNS (central nervous systen)... Peripheral nervous system - nerve…
A change in the environment
Detects stimulus
Homeostasis
The regulation of conditions in the body including water level…
Nervous system consists of
CNS (central nervous systen)... Peripheral nervous system - nerve…
What is homeostasis?
Why is homeostasis important?
Name 3 examples of homeostasis, it cont…
What are the main features of a control…
homeostasis is the regulation of internal conditions of a cell…
it keeps conditions constant for enzyme action and cell functi…
blood glucose concentration, body temperature, water and miner…
receptors, a coordination centre and effectors.
What is homeostasis?
homeostasis is the regulation of internal conditions of a cell…
Why is homeostasis important?
it keeps conditions constant for enzyme action and cell functi…
where is the FSH hormone produced?
where in the body is the pituitary gland
What does the FSH hormone do?
what are the 4 female reproductive horm…
pituitary gland
the brain
travels to ovaries to stimulate them to release oestrogen
folic stimulating, oestrogen, luteinising, progesterone
where is the FSH hormone produced?
pituitary gland
where in the body is the pituitary gland
the brain
Define "CNS"
Define "PNS"
Define "stimulus"
Define "effector"
Cental Nervous System (brain and spinal cord)
Peripheral Nervous System
A change in the environment detected by receptors, e.g. light,…
Muscle/gland that responds to the motor neurone to cause a cha…
Define "CNS"
Cental Nervous System (brain and spinal cord)
Define "PNS"
Peripheral Nervous System
Define homeostasis.
Why does homeostasis need to maintain o…
List three conditions that the body nee…
What do the two automatic response syst…
The regulation of the internal conditions of a cell or organis…
For enzyme action and all cell functions.
Blood glucose concentration, body temperature and water levels.
Nervous responses or chemical responses.
Define homeostasis.
The regulation of the internal conditions of a cell or organis…
Why does homeostasis need to maintain o…
For enzyme action and all cell functions.
What is homeostasis?
What can homeostasis include the contro…
What might the control systems of homeo…
What do all control systems involve?
The regulation of internal conditions in a cell or organism to…
Blood glucose, body temperature and water levels
Nervous responses or chemical responses (hormones).
Receptors, coordination centres, effectors
What is homeostasis?
The regulation of internal conditions in a cell or organism to…
What can homeostasis include the contro…
Blood glucose, body temperature and water levels
homeostasis
receptors
effectors
negative feedback
a tendency to maintain a balanced or constant internal state;…
parts of the cell membrane that receive the neurotransmitter a…
cause responses that alter conditions in the internal environm…
a primary mechanism of homeostasis, whereby a change in a phys…
homeostasis
a tendency to maintain a balanced or constant internal state;…
receptors
parts of the cell membrane that receive the neurotransmitter a…