(OL) Unit 1: Cell Structure and Function Vocabulary

Vocabulary flashcards covering key terms related to cell structure and function for 7th grade life science.

Animal Cell

A eukaryotic cell that serves as the basic unit of life in animals.

Bacteria

Organisms made up of one cell that have a cell wall but do not have a nucleus or other membrane-bound organelles.

Cell

The basic unit of life on Earth.

Cell Membrane

A semipermeable organelle that controls the movement of substances into and out of a cell.

Cell Wall

A rigid structure that provides support, protection, and shape to plant cells; also found in most bacteria, fungi, and algae.

Chloroplast

A membrane-bound organelle that contains chlorophyll and is the site of photosynthesis.

Cytoplasm

Thick fluid material found between the cell membrane and nucleus.

DNA

A molecule present in all living things that contains the genetic information determining inherited traits.

Eukaryote

An organism made up of cells that have a nucleus surrounded by a membrane and other membrane-bound organelles.

Homeostasis

The maintenance of stable internal conditions.

Lysosome

A membrane-bound organelle that digests wastes, cell parts, and foreign particles.

Mitochondria

A membrane-bound organelle that is the site of cellular respiration and produces energy (ATP).

Multicellular

An organism made of multiple cells.

Nucleus

A membrane-bound organelle that contains the cell’s DNA.

Organelle

Structures within a cell that perform specific functions.

Plant Cell

A eukaryotic cell that serves as the basic unit of life in plants.

Prokaryote

A single-celled organism that does not have a nucleus or membrane-bound organelles.

Unicellular

An organism that is made of a single cell.

Vacuole

A membrane-bound organelle that stores needed materials such as water and nutrients.