Homeostasis Lab Report
Keeping conditions inside the body the same is called homeostasis. It’s not easy. Lots of things have to happen, e.g. energy transferred between body and environment, carbon dioxide is a waste product of respiration and has to be transported by the bloodstream to the lungs where it is breathed out, waste and waste products are filtered out of the blood and excreted in the urine.
An incubator has a temperature sensor, a thermostat with a switch and a heater. Negative feedback happens when one factor drops and another factor increases until they are in balance, for example is when the temperature drops, the heater turns on until the temperature goes up again.
Feedback is when any change in the system results in an action that reverses the change. If two effectors have …show more content…
For this to happen, the molecules need to dissolve through a partially permeable. Osmosis is the diffusion of water as it goes from dilute to a more concentrated solution. Active transport is the movement of molecules from low concentration to high concentration against the concentration gradient. Energy is required for movement to occur.
Water Balance- Salt concentration in blood depends on how much water is reabsorbed by kidneys and how much is excreted in urine. The concentration of salt in the blood can be higher if there is excess of sweating, not drinking enough water and eating salty food.
Some drugs affect the volume of urine created. Caffeine causes more dilute urine. Alcohol has even higher effects and can make people very dehydrated. Ecstasy reduces the volume of urine a person makes. Overheating may also lead to the person drinking too much water and this level can become dangerously high, which may result in death.
Controlling Water Balance- The control system is processed through Negative Feedback. The system: 1) Receptors in hypothalamus detect changes in salt concentration in
An incubator has a temperature sensor, a thermostat with a switch and a heater. Negative feedback happens when one factor drops and another factor increases until they are in balance, for example is when the temperature drops, the heater turns on until the temperature goes up again.
Feedback is when any change in the system results in an action that reverses the change. If two effectors have …show more content…
For this to happen, the molecules need to dissolve through a partially permeable. Osmosis is the diffusion of water as it goes from dilute to a more concentrated solution. Active transport is the movement of molecules from low concentration to high concentration against the concentration gradient. Energy is required for movement to occur.
Water Balance- Salt concentration in blood depends on how much water is reabsorbed by kidneys and how much is excreted in urine. The concentration of salt in the blood can be higher if there is excess of sweating, not drinking enough water and eating salty food.
Some drugs affect the volume of urine created. Caffeine causes more dilute urine. Alcohol has even higher effects and can make people very dehydrated. Ecstasy reduces the volume of urine a person makes. Overheating may also lead to the person drinking too much water and this level can become dangerously high, which may result in death.
Controlling Water Balance- The control system is processed through Negative Feedback. The system: 1) Receptors in hypothalamus detect changes in salt concentration in