Levels of Cellular Organization

What is the role of an organ in an organism?

• To perform specific functions necessary for survival.

• To provide structural support only.

• To store energy for later use.

• To facilitate communication between cells.

What is the smallest level of organization of life in an organism?

• Tissue

• Organ

• Cell

• Organism

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NGSS.MS-LS1-2

NGSS.MS-LS1-1

What is the relationship between cells, tissues, organs, and organ systems?

• Cells are the smallest unit of life, tissues are made of cells, organs are made of tissues, and organ systems are made of organs.

• Cells make up tissues, tissues make up organs, and organs make up organ systems.

• Cells are independent units, tissues are groups of cells, organs are groups of tissues, and organ systems are groups of organs.

• Cells are formed from organ systems, tissues are formed from organs, and organs are formed from cells.

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NGSS.MS-LS1-3

How do cells in a tissue communicate with each other?

• Through electrical impulses and direct contact.

• Through chemical signals and direct contact.

• Through mechanical vibrations and indirect contact.

• Through light signals and chemical reactions.

How do organ systems contribute to the overall function of an organism?

• By working independently to support life processes.

• By working together to maintain homeostasis and support life processes.

• By competing with each other for resources.

• By isolating functions to prevent interference.

Tags

NGSS.MS-LS1-3

NGSS.MS-LS1-2

What is an example of a tissue in the human body?

• Muscle tissue

• Blood

• Bone

• Skin

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NGSS.MS-LS1-3

What do we call a group of organs that work together to perform a particular function?

• Organ system

• Tissue group

• Cellular network

• Biological unit

Tags

NGSS.MS-LS1-3

What is the function of an organ system?

• To perform a specific function by coordinating the activities of different organs.

• To provide structural support to the body.

• To transport nutrients and oxygen throughout the body.

• To protect the body from external pathogens.

What is a group of cells that work together called?

• Organ

• Tissue

• Cell

• Organism

Tags

NGSS.MS-LS1-3

What is the primary function of a cell?

• To carry out life processes and maintain homeostasis.

• To provide structural support to tissues.

• To store genetic information only.

• To facilitate communication between cells.

Tags

NGSS.MS-LS1-2