U1 L5: Body Systems & Cell Transport

What is the best definition for Multicellular?

• Organisms made up of more than one cell.
• Entities that are composed of multiple tissues.
• Living beings that can exist independently of cells.
• Organisms that consist of only one cell.

What is the best definition for Unicellular?

• A cell that can exist independently or in groups.
• An organism made up of a single cell.
• A type of cell found in multicellular organisms.
• An organism made up of multiple cells.

What is the best definition for Eukaryote?

• Organisms that only exist in extreme environments.
• Single-celled organisms without a nucleus.
• Organisms with complex cells containing a nucleus and organelles.
• Simple cells that lack organelles.

What is the best definition for Prokaryote?

• Prokaryote: a unicellular organism without a nucleus or membrane-bound organelles.
• Prokaryote: a multicellular organism with a nucleus.
• Prokaryote: an organism that has membrane-bound organelles.
• Prokaryote: a type of virus that infects bacteria.

What is the best definition for Specialized Cells?

• Specialized cells are cells that perform specific functions in an organism.
• Specialized cells are cells that do not have any specific function.
• Specialized cells are identical to stem cells.
• Specialized cells are only found in plants.

What is the best definition for Tissue?

• A single cell that performs all bodily functions.
• A type of organ that consists of multiple tissues.
• A collection of organs that work together to form a system.
• A group of cells that work together to perform a specific function.

What is the best definition for an Organ?

• A group of tissues that work together to perform a specific function in a living organism.
• A single cell that performs a function in an organism.
• A collection of organs that work independently.
• A type of tissue that has no specific function.

What is the best definition for an Organ System?

• A single organ functioning independently.
• A collection of tissues that perform a similar function.
• An individual cell that carries out a specific task.
• A group of organs working together to perform specific functions.

What is the best definition for Passive Transport?

• Passive transport requires energy to move molecules.
• Passive transport is the active movement of molecules against a concentration gradient.
• Passive transport involves the use of protein pumps to facilitate movement.
• Passive transport is the movement of molecules across a cell membrane without the use of energy.

What is the best definition for Diffusion?

• The process of molecules moving from low to high concentration.
• The movement of molecules from high to low concentration.
• The random movement of molecules in a vacuum.
• The transfer of heat from one object to another.