Cells and More Cells

A collection of flashcards covering key concepts from cell biology, including definitions of structures and functions related to cells.

What is the smallest unit that can perform the functions of life?

Cell

What do you call a combination of several types of tissues working together to perform a specific function?

Organ

Name the two basic types of cells.

Prokaryotic and Eukaryotic

What is the function of mitochondria in a cell?

Supplies cell with energy and is known as the 'powerhouse of the cell'.

What is the role of ribosomes in a cell?

Help to make proteins.

What is the cell theory?

1. All living organisms are made of one or more cells. 2. The cell is the basic organizational unit of life. 3. All cells come from pre-existing cells.

Which structure controls the cell's activities and is the site of DNA duplication?

Nucleus

What separates the inside of the cell from the external environment?

Cell membrane

What are vacuoles used for in a cell?

To store or transport small molecules.

What do chloroplasts do in plant cells?

Trap energy from the sun to produce sugar through photosynthesis.

What is the function of the Golgi body?

Sorts and packages proteins and other molecules for transport out of the cell.

What is the major microtubule organizing center of a cell called?

Centrosomes.

What maintains the structure of a cell and is involved in movement?

Cytoskeleton.

What type of cells have a true nucleus?

Eukaryotic cells.

What did Matthias Schleiden discover using a light microscope?

The first plant cell.

What allows materials to flow into and out of the cell?

Cell membrane

What is an organelle?

A specialized structure in a cell.

What characterizes prokaryotic cells?

They have no true nucleus and most are single-celled organisms.

What is made up of similar cells that share the same structure and function?

Tissue.

What encompasses the fluid material between the cell membrane and the nucleus?

Cytoplasm.

What is the smallest particle of an element that retains the identity of the element?

Atom.