Science Chapter 4 Review

Living things are made of cells. Cells can function as individual organisms or as the smallest units in a larger organism. These conclusions form the basis of ____.

• the cell theory

• meiosis

• the characteristics of living things

• mitosis

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A ____ uses lenses to magnify objects, such as cells, hundreds or thousands of times.

• microscope

• seismograph

• periscope

• spectroscope

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A group of cells working together is called ____.

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The ____ provides the external boundary for a cell.

• cell membrane

• chromosome

• cytoplasm

• nucleus

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The bubble-like storage organelles found in a cell are called _____ .

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Plants use a green pigment called _____ to absorb energy from sunlight.

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Match the following cell parts with their functions.

• The powerhouse of the cell, generating energy.

• cell wall

• The jelly-like substance that fills the cell and holds organelles.

• endoplasmic reticulum

• The rigid structure that provides support for plant cells.

• mitochondria

• The network of membranes involved in protein and lipid synthesis.

• cytoplasm

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Match the following processes with their descriptions.

• The process of breaking down glucose to release energy.

• photosynthesis

• The process by which an organism produces reproductive cells.

• respiration

• The process by which plants convert sunlight into chemical energy.

• meiosis

• The process of cell division resulting in two identical daughter cells.

• mitosis

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Match the following scientists with their contributions to the cell theory.

• Coined the term 'cell' after observing cork

• Carolus Linnaeus

• Developed a system for naming organisms

• Theodor Schwann

• Worked with Matthias Schleiden to form the basis of the cell theory

• Robert Hooke

An organism is a complete living thing.

• True
• False