Homeostasis-Sloop in, Slurp out

Describe homeostsis

• The movement of water across a cell mebrane

• Maintaing a stable internal environment despite changing external conditions

• Particles moving from an area of high concentration to an area of low concentration

• Movin Particles without using Energy

Describe Osmosis

• A special case of diffusion that involves the movement of water across a semi-permeable membrane.

• Using Energy to move particles across a cell membrane against the concentration gradient.

• Maintaining a stable internal environment despite changing external conditions.

• The movement of particles along a concentration gradient.

Describe Active Transport

• is the movement of water along the concentration gradient.

• is the movement of particles by diffusion without energy.

• is the movement of particles along the concentration gradient.

• is the use of energy to move particles against the concentration gradient.

Describe Diffusion

• is the movement of particles along the concentration gradient.

• s the movement of particles by diffusion without energy.

• is the use of energy to move particles against the concentration gradient.

• is the movement of water along the concentration gradient.

In which solution might a cell maintain homeostasis through diffusion?

• concentrated

• hypertonic

• hypotonic

• isotonic

What would most likely happen to a unicellular organism if it was exposed to a hypotonic solution for an extended period of time?

• It would shrivel and shrink.

• It would swell but never burst.

• It would swell and then burst.

• It would not be affected.

Which solution would most likely cause a plant placed in it to become firmer and more rigid?

• hypertonic

• hypotonic

• isotonic

• osmotic

What is the smallest cell in the human body?

• nerve cell

• egg

• sperm

• blood

The most pollution-free source of energy is:

• natural gas

• coal

• nuclear

• solar

What is arachnology?

• The study of mice.

• The study of bugs.

• The study of spiders

• The study of fish.