Cell Structure and Functions Flashcards
Basic unit of all living things
A Cell
Thin, flexible barrier around a cell; regulates what enters and leaves the cell
Cell Membrane
A jellylike fluid inside the cell in which the organelles are suspended
Cytoplasm
Strong wall outside a plant cell’s cell membrane that protects the cell and maintains its shape
Cell Wall
A tiny cell structure that carries out a specific function within the cell
Organelle
Organelle that controls all the activities of a cell and contains hereditary material made of proteins and DNA
Nucleus
A structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food
Chloroplast
Bean shaped organelle that releases energy from stored food molecules which supplies energy for the cell
Mitochondrion
An organelle that is responsible for making proteins.
Ribosome
A cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another.
Endoplasmic Reticulum (ER)
A structure in a cell that receives proteins and other newly formed materials from the endoplasmic reticulum, packages them, and distributes them to other parts of the cell.
Golgi Body/Apparatus
Group of similar cells that perform a particular function
Tissue
A collection of tissues that carry out a specialized function of the body
Organ
Group of organs that work together to perform a specific function
Organ System
Any living thing
Organism
Cell division in which the nucleus divides into nuclei containing the same number of chromosomes
Mitosis
A process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus, which results in the production of sex cells
Meiosis
A structure in the nucleus that contains hereditary material
Chromosome
An organelle that stores food, water, and other materials needed by the cell
Vacuole
Organisms composed of many cells
Multicellular
A type of organism that is made up of a single cell
Unicellular