Cell Homeostasis Answers

Which homeostatic process moves particles against a concentration gradient?

For diffusion to occur, which condition must be met?

Which movement of particles would be most affected by a disorder that causes damage to carrier proteins?

Which homeostatic process requires energy to move particles across the plasma membrane?

Which motion of particles across a membrane requires energy?

Water makes up a large percentage of the body’s cells. For a cell to remain in homeostasis, there must be a mechanism to control water changes in the cells. The movement of water from an area of high water concentration to an area of low water concentration is

Which statement describes the ability of the cell membrane to allow various substance to move through it?

Reptiles and birds excrete waste as an insoluble white solid that is called uric acid. How does this help them to maintain internal homeostasis in hot climates?

Which adaptation helps polar bears maintain a constant internal temperature (thermal homeostasis) in cold weather?

How does the contractile vacuole in a single-celled organism function to maintain homeostasis?