Characteristics of Life
What is a Cell?
Smallest living units in a living thing.
All organisms are made of
One or more cells
Name for a cell with a nucleus
Eukaryotic cell
What is a Tissue?
When similar cells that perform the same function
How many body systems are in the human body?
Eleven
Name for organisms that are single celled
Unicellular
All cells arise from
Pre-existing cells
Name for a cell without a nucleus
Prokaryotic cell
What is an Organ?
A body structure made of different kinds of tissues that work together.
Name two body systems in the human body
Nervous System, Circulatory System, Respiratory System, Digestive System, Muscular System, Skeletal System, Immune System, Endocrine System, Integumentary System, Urinary System
Name for an organism with more than one cell
Multicellular
Cells are the
Structural and functional unit of life/ building blocks of life
What is one cell that is in both plants and animals?
Nucleus, Cell Membrane, Mitochondria, Ribosomes.
A group of organs that work together to perform a major function.
Name two ways to keep your body systems healthy
Exercise, Eat healthy, Get enough sleep, Stay hydrated
Living Things are made up of units called
Cells
Name one scientist who contributed to Cell Theory
Robert Hooke, Francesco Redi, Anton Von LeeuwenHoek, Hans and Zacharias Janssen, Robert Brown, Matthias Schleiden, Theodor Schwann, Robert Remak, Rudolf Virchow, Louis Pasteur
What is one cell only in plants?
Chloroplasts, Cell Wall, and a Large Central Vacuole
Name an Organ in the human body
Heart, Stomach, Brain, Lungs, Kidneys
Which body system fights diseases?
Immune System
Name two things that a living organism can do
Reproduce, Grow/Develop, Maintain a stable environment, Obtain and use materials and energy, Respond to their environment, Evolve.
What scientific tool was important to the Cell Theory?
The microscope
What is one cell only in animals?
Lysosomes and Small Vacuoles
What is another name for a living thing, found only in living things?
Organism
Which body system controls thoughts, movements, and senses?
Nervous System