Life Science Unit Test Review 7th

The human body has different levels of organization. In the structural organization of the central nervous system, which is an organ?

• brain

• heart

• lungs

• skeleton

The structures in the bodies of many organisms have levels of organization that help the body to carry out life processes. Which list correctly shows how these levels are organized from the simplest to the most complex?

• A. tissue, cell, organ, organ system

• B. organ, cell, organ system, tissue

• C. cell, tissue, organ, organ system

• D. organ system, tissue, organ, cell

Tags

NGSS.MS-LS1-3

Which of the following is the BEST example of increasing complexity in the levels of organization in the human muscular system?

• A. mitochondria → muscle cell → muscle fibers → muscle → muscle group → muscular system

• B. muscle cell → mitochondria → muscle fibers → muscle → muscle group → muscular system

• C. mitochondria → muscle cell → muscle fibers → muscle group → muscle → muscular system

• D. muscular system → muscle group → muscle → muscle fibers → muscle cell → mitochondria

Cells perform many different processes that an organism needs to survive and grow. Which is the main function of the process of cellular respiration?

• A. the production of sugar

• B. the release of energy

• C. the formation of new proteins for the cell

• D. the removal of waste products from the cell

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

Which organelle in the cell is known as a powerhouse, for breaking down food to use as energy?

• nucleus

• cytoplasm

• mitochondria

• lysosome

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-7

Which human body system transports blood and oxygen throughout the body? The main organ is the heart.

• skeletal system

• cardiovascular system

• respiratory system

• digestive system

Which are the 3 ingredients a plant needs to undergo photosynthesis?

• carbon dioxide, water, sunlight

• carbon dioxide, oxygen, hydrogen

• carbon dioxide, soil, nutrients

• oxygen, water, soil

Tags

NGSS.MS-LS1-6

Which human body system is responsible for gas exchange? Breathing in oxygen, breathing out carbon dioxide.

• Endocrine System

• Muscular System

• Urinary System

• Respiratory System

What is the largest organ of the human body? Found in the Integumentary system.

• skin

• heart

• brain

• lungs

Humans are organisms who have organs. Cells have __________.

• organs

• organelles

• brains

• muscles

Tags

NGSS.MS-LS1-2