L611 VOCAB WORD.docx

**Vocabulary Words Defined:** - **Cell**: the basic unit of life that makes up all living things. - **Virus**: a tiny infectious agent that can only replicate inside the living cells of an organism. - **Bacteria**: single-celled organisms that can be found in various environments; s...

**Vocabulary Words Defined:** - **Cell**: the basic unit of life that makes up all living things. - **Virus**: a tiny infectious agent that can only replicate inside the living cells of an organism. - **Bacteria**: single-celled organisms that can be found in various environments; some are helpful, while others can cause disease. - **Theory**: a well-supported explanation of an aspect of the natural world based on a body of evidence. - **Reproduce**: the process by which living organisms create new individuals of the same kind. - **Eukaryotic**: cells that have a nucleus and organelles, and are typically larger and more complex than prokaryotic cells. - **Prokaryotic**: simple, single-celled organisms that do not have a nucleus or organelles. - **Unicellular**: organisms made up of only one cell. - **Multicellular**: organisms composed of many cells that work together. - **Nucleus**: the part of a cell that contains genetic material (DNA) and controls the cell\'s activities. - **Membrane**: a protective layer that surrounds the cell and controls what enters and exits. - **Vacuole**: a storage sac within a cell that can hold various substances, including nutrients and waste products. - **Chloroplast**: an organelle found in plant cells that allows them to perform photosynthesis by converting sunlight into energy. - **Mitochondria**: known as the powerhouse of the cell, these organelles generate energy for the cell\'s functions. - **DNA**: the molecule that carries the genetic instructions for life and determines the characteristics of living organisms.