Biology Structures, Functions, and Processes in Cells

Which invention played the biggest role in the discovery of cells by early scientists?

• magnifying glass
• lens
• eyeglasses
• compound microscope

Which tool is most likely used to produce a clear image of very tiny structures inside a cell?

• light microscope
• magnetic resonance imaging
• electron microscope
• computer model

Specialized structures that work together inside a cell are called

• organelles
• prokaryotes
• eukaryotes
• nuclei

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NGSS.MS-LS1-2

The cell theory states that all organisms are made of cells; cells are the most basic unit of life; and

• all existing cells from by free-cell formation
• all cells have a nucleus
• all existing cells are produced by other living cells
• all cells are eukaryotic

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Unlike a eukaryotic cell, a prokaryotic cell does not have

• DNA
• a cell membrane
• cytoplasm
• a nucleus

What is the term for the jellylike substance that is contained inside the cell membrane?

• DNA
• cytoplasm
• organelle
• nucleus

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NGSS.MS-LS1-2

Which of the following is a network of proteins that supports and gives shape to a cell?

• vesicles
• vacuole
• cytoskeleton
• cytoplasm

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What is the main function of the Golgi Apparatus?

• communicate with other cells
• convert solar energy to chemical energy
• process and deliver proteins
• copy genetic information

Which of the following can be found in the cytoplasm and on the surface of the endoplasmic reticulum?

• mitochondria
• centrosomes
• ribosomes
• centrioles

Which organelle contains enzymes that break down damaged cell parts?

• centriole
• lysosomes
• vacuole
• mitochondria

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NGSS.MS-LS1-2