Homeostasis and Cell Transport

Match the following

• is the process by which a cell expels wastes from a vacuole (vesicle).

• exocytosis

•  is particle movement from an area of higher concentration to an area of lower concentration

• channel protein

• transport protein that provides a tube-like opening in the plasma membrane through which particles c

• endocytosis

• is used during active transport but not passive transport

• energy

• is the process by which a cell takes in material by forming a vacuole (vesicle) around it.

• passive transport

Match the following

• is particle movement from an area of lower concentration to an area of higher concentration

• facilitated diffusion

• is a form of passive transport that uses transport proteins.

• active transport

• is when molecules of one substance are spread evenly across.

• osmosis

• is the diffusion of water through a cell membrane.

• carrier proteins

• are transport proteins that change shape when a particle binds with it.

• equilibrium

 Movement from a low concentration to a high concentration requires energy and is called active transport.

• True

• False

Homeostasis regulates the internal environment by maintaining conditions within narrow ranges.

• True

• False

The body cannot work to maintain homeostasis in response to changes, that can be internal or external.

• True

• False

On a hot day, sweating is an outward sign that your body is trying to regulate body temperature.

• True

• False

The liver helps regulate blood glucose, because the pancreas releases the enzyme glucagon.

• True

• False

This is the smallest unit of life

• the atom

• macromolecules

• the cell

Selectively permeable or semipermeable means that

• the cell membrane keeps all particles or molecules out of the cell

• water ONLY is able to pass through the cell membrane

• only a select molecules can pass through the cell membrane

Choose the correct order of the structures:

organism, cell, organ systems, organs, tissue

• organism -> organ systems -> organ -> tissue -> cell

• organ -> tissue -> cell -> organism -> organ system

• organ -> cell-> tissue -> organ systems -> organism

• cell-> tissue -> organs -> organ systems -> organism