High School Biology › Understanding Biological Equilibrium
Which is not an example of homeostasis?
Mitochondria create ATP through proton pumps in order to power the cellular processes
The kidneys work to remove excess salt, urea, and water from the bloodstream
Warm blooded (endothermic) animals sweat to release heat, or shiver to increase metabolic activity and increase body temperature
Insulin is released by the pancreas to encourage cells to retain their glucose instead of releasing it into the blood stream
Oxygen content in the bloodstream is low, so the heart pumps faster and speed/depth of breathing increases
Which of the following is true when the body is under homeostasis?
The body is under dynamic equilibrium
The body stops digesting foods
The body is able to self-sustain without anything from the environment
The body is at an appropriate core temperature and no longer needs to regulate body temperature
The body cannot generate its own heat in very cold conditions
Which of following correctly describes how a catalyst affects a chemical reaction?
Speeds up a chemical reaction by lowering the activation energy
Slows down a chemical reaction by lowering the activation energy
Speeds up a chemical reaction by increasing the activation energy
Slows down a chemical reaction by increasing the activation energy
Has no effect on the speed of the chemical reaction, but increases the amount of product produced