Cells

This set of flashcards covers key vocabulary and concepts related to cells, including cell theory, organelles, and movement across membranes.

Cell

The functional unit of life.

Cell Theory

Developed in the 1830s, states that cells are the basic structural and physiological units of all living organisms.

Robert Hooke

Discovered cells in 1665 due to the development of the microscope.

Surface Area to Volume Ratio

Cells are small to maintain a high ratio for efficient waste removal.

Zygote

The fertilized egg that develops into a multicellular organism.

Organelles

Specialized structures within a cell performing distinct functions.

Rough Endoplasmic Reticulum (RER)

Membranous organelle that synthesizes proteins to leave the cell.

Mitochondria

Site of cellular respiration in eukaryotic cells.

Passive Movement

Movement of substances from high to low concentration that requires no ATP.

Endocytosis

In-pocketing of the membrane to take in materials, forming a vesicle.

Exocytosis

Process by which a vesicle fuses with the plasma membrane to release materials outside the cell.