7th Grade Biology Review

Which of the following best describes the relationship between cells and living things in general?

• The larger the living thing, the larger its cells.

• All living things are made up of one or more cells.

• The number of cells in all living things is the same.

• There is one kind of cell, which all living things are made of.

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Which of the following statements is TRUE about cells?

• Cells are made up of smaller living things, called organelles.

• For something to be alive, it must be made of many cells.

• Cells are the smallest unit that can be considered alive.

• Only groups of cells that function together are actually alive.

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NGSS.MS-LS1-1

The structure of the cell membrane contributes to the overall function of the cell in what way?

• It provides a rigid support that provides structure for the entire organism.

• It contains small openings that can store water the cell needs to survive.

• It carries signals from one cell to the next, allowing cells to work together.

• It allows for the passage of certain substances into and out of the cell.

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The various different parts of a cell, called organelles, are beneficial to the cell in what way?

• The parts require nutrients in order to work properly.

• The various organelles increase the energy used by the cell.

• The functions of the cells are controlled by genes.

• Each part performs a unique and necessary function.

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NGSS.MS-LS1-2

In plant cells, how are chloroplasts and mitochondria related?

• Chloroplasts manufacture food; mitochondria break down the food and convert it into energy.

• Chloroplasts package nutrients; mitochondria deliver the nutrients to other parts of the cell.

• Chloroplasts absorb water from the surrounding tissue; mitochondria store water.

• Chloroplasts direct the functions of the cell; mitochondria deliver messages to all parts of the cell.

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NGSS.MS-LS1-2

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Students are comparing the parts of a cell to the parts of a city. Which of the following would provide the best comparison to the nucleus of a cell?

• Power Plant - provides energy needed by all parts of the city

• City Hall - directs necessary activities throughout the city

• Waste Management - collects and removes waste

• Border Patrol - regulates what enters and leaves the city

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NGSS.MS-LS1-2

The overall shape of a plant cell is most directly related to which of its parts?

• Mitochondria

• Cell wall

• Cell membrane

• Chloroplasts

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NGSS.MS-LS1-2

Which of the following provides the best evidence that the circulatory system and the respiratory system work together to carry out their functions?

• Nutrients are absorbed into the blood from the intestines.

• Lungs expand and contract through movements of the diaphragm.

• New red blood cells are generated in the marrow of bones.

• Gases exchanged in the lungs are carried by the blood.

Which of the following accurately describes one part of the hierarchy of organization in living systems?

• Tissues are made up of various cell types.

• Organs are made up of various organ systems.

• Cells are made up of various organs.

• Tissues are made up of various organisms.

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Which of the following provides the best example of the parts of a system working together to achieve a specific function?

• Specialized cells in a plant's leaf open and close in response to changing conditions.

• Red blood cells are capable of transporting oxygen because of their chemical composition.

• Glands in the mouth, the stomach, the pancreas, and the small intestine secrete chemicals that break down nutrients.

• Animals that prey on other animals require the ability to move about in their environment.

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