Cell Review Cell Theory Plant and Animal Organelles

Which process can Rylee learn about by studying the nucleus of a cell?

• how waste is removed

• how water is collected and stored

• how genetic information is passed on

• how energy is absorbed from sunlight

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NGSS.MS-LS3-1

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Both the cell membrane and the cell wall act to protect the organelles within a cell. Which of the following best describes how the cell membrane is different from the cell wall?

• The cell membrane is made of a tough cellulose fiber, whereas the cell wall is made of a flexible glycogen fiber.

• The cell membrane only controls what crosses into the cell, whereas the cell wall only maintains a cell's rigidity.

• The cell membrane is a single-layered membrane, whereas the cell wall is a double-layered membrane.

• The cell wall is only found in plant cells, whereas the cell membrane is found in plant and animal cells.

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NGSS.MS-LS1-2

The diagram shows characteristics of a dandelion plant and a desert lizard. The portions in the diagram that overlap show characteristics that both organisms share.

Which characteristic belongs at X?

• Are mobile and often change locations

• Have cell walls surrounding their organelles

• Are composed of cells, as stated by cell theory

• Use sunlight to make energy, as stated by cell theory

Ava has a list of organisms she is studying in science class. The organisms on her list are bacteria, pine trees, and elephants. Which of the organisms on her list are made of cells?

• Pine trees because only plants are made of cells.

• Elephants because only animals are made of cells.

• Bacteria because only microscopic organisms are made of cells.

• Bacteria, pine trees, and elephants because all organisms are made of cells.

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NGSS.MS-LS1-1

Much like whole organisms, cells must perform functions to survive. Some cell functions include obtaining energy and bringing in nutrients and water. What other function must a cell perform to stay alive?

• move from one organism to another

• produce bacteria

• get rid of wastes

• change into other kinds of cells

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NGSS.MS-LS1-2

NGSS.MS-LS1-7

What structures do both plant cells and animal cells contain?

• nuclei and mitochondria

• vacuoles and chloroplasts

• cell walls and chromosomes

• cell membranes and chloroplasts

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NGSS.MS-LS1-2

In science class, Cindy and Jane are conducting an investigation on living things to find out what the difference is between unicellular and multicellular organisms. First, they use a microscope to observe different types of organisms. Next, they go to the library to do more research on the organisms they observed with the microscope. Afterward, Cindy and Jane reviewed the observations and data results they recorded to come to a conclusion to the question: What is the difference between a unicellular organism and a multicellular organism?

• Unicellular organisms do not respond to stimuli in the environment. Multicellular organisms do respond to stimuli in the environment.

• Unicellular organisms are producers and multicellular organisms are consumers.

• Unicellular organisms perform all functions for life with one cell. Multicellular organisms have many cells that work together to keep them alive.

• Unicellular organisms are heterotrophs and multicellular organisms are autotrophs.

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NGSS.MS-LS1-1

What is C pointing to?

• Cytoplasm

• Vacuole

• Nucleus

• Mitochondria

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NGSS.MS-LS1-1

NGSS.MS-LS1-2

What is E pointing to?

• Cytoplasm

• Vacuole

• Nucleus

• Mitochondria

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NGSS.MS-LS1-1

NGSS.MS-LS1-2

What is F pointing to?

• Cytoplasm

• Vacuole

• Nucleus

• Mitochondria

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NGSS.MS-LS1-1

NGSS.MS-LS1-2