Lesson 3 Flashcard: Cell Theory, Structures, & Functions

Front

What is the Cell Theory?

Back

The Cell Theory states that: 1) All living things are made of cells, 2) Cells are the basic unit of life, and 3) All cells come from pre-existing cells.

Front

What are eukaryotes?

Back

Eukaryotes are organisms whose cells have a nucleus enclosed within membranes, unlike prokaryotes, which do not.

Front

What is the function of mitochondria?

Back

Mitochondria are known as the powerhouse of the cell because they produce energy through cellular respiration.

Front

What is a tissue?

Back

A tissue is a group of cells of the same kind that work together to perform a specific function.

Front

What is an organ?

Back

An organ is a structure made up of different types of tissues that work together to perform a specific function.

Front

What is an organ system?

Back

An organ system is a group of organs that work together to perform complex functions for the body.

Front

What is the basic unit of life?

Back

The basic unit of life is the cell.

Front

What is the role of ribosomes?

Back

Ribosomes are responsible for synthesizing proteins in the cell.

Front

What is the function of the cell membrane?

Back

The cell membrane controls what enters and exits the cell, providing protection and support.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells do not have a nucleus or membrane-bound organelles, while eukaryotic cells do.