Reef Sharks
Reef SharksSome like it hot! Notes
Some Like it HotBy: Jack Jurkiewitz, Israel M, JTT
IntroProteinsFreezing TemperaturesEl Fin
How Do Animals Save and Release Their Heat?By: Reilly Nix, Aimun
Malik, Ian Aitken, and The Jack RouseCellular Respiration
Cellular Respiration is a chemical process that all living cells
undergo. When a cell respires, glucose and other food molecules are
broken down and in turn release chemical energy. Chemical energy is
used for growth, movement, and even storage for the cell. Cellular
Respiration is a major way for cells to keep cool in a warm
environment. When yeast cells ferment this is only one type of
their cellular respiration. Warm and Cold Blooded Animals
Turtles and Most Reptiles are cold blooded animals.Cold Blooded
Animals- Cold Blooded Animals have the benefit of being able to
regulate their blood temperature depending on their environment.
Cold blooded animals are known as polikilotherms which in Greek
means changeable. Warm Blooded animals maintain a fairly constant
blood temperature. Homeotherms which in Greek means same.
Lions are Warm Blooded and maintain a constant temperature.
9Rattlesnakes are examples of poikilotherms. They are cold-blooded.
Poikilotherms are less active when temperatures are low and are
more active when temperatures are high.For example, when the night
comes, a poikilotherm will become less active because the
temperature drops.
Water-dwelling poikilotherms like fish, do not change their
temperature and behavior as much because the water temperature does
not change as fast.In the winter, when ponds freeze, the top layer
of ice acts as an insulator for the fish.
Some amphibians that live in very cold climates hibernate during
the coldest part of the winter.Other poikilotherms have chemicals
in their cells that inhibit the formation of ice crystals, enabling
them to survive when temperatures fall below freezing.
Homeotherms have a constant body temperature that is usually
higher than the surrounding temperature.They constantly lose energy
to our surrounding except on very hot days.A homeotherm may require
up to 10 times the amount of energy of a poikilotherm needs in the
same environment.Homeotherms require more food.Examples of
homeotherms include:Humans- If their body temperature gets too low,
their body starts to shut down. (Muscle failure)
Humans and HomeothermsChad M.Chandler A.Daniel K. Michael M.
HomeothermsSuch as humans have body systems that regulate
internal body temperature.Brain signals body parts to initiate a
certain process.Increasing and decreasing temp.There are two times
the brain sends signals to the body. There is increasing or
decreasing heat production in metabolic activity.By increasing or
decreasing heat flow from the body to the environment.
ExamplesWhen body temperature rises above normal, brain
increases blood flow to the vesselsIf body temperature drops below
normal, the brains thermostat increases to generate more heat and
reduces blood flow to the vessels in the
skin.HomeostasisHomeostasis- the maintenance of stability in an
organisms internal environment regardless of external changes.
