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Terms in this set (26)
A Cell is the smallest unit that can perform all life processes.
1. All living/once living things are made of one or more cells (basic unit of life)
2. All of an organism's life functions occur within cells.
3. Cells come only from existing cells.
4. Cells contain the hereditary information necessary for regulating cell functions and transmitting information to the next generation of cells.
Consisting of a single cell.
Composed of several or many cells.
Specialized part of a cell with a specific function
Cell Walls are tough, rigid structures that give support , shape and protection to plant cells.
Organelles in plant and algae cells that contain a green pigment called chlorophyll that traps the energy of sunlight, which is used to make glucose through the process of photosynthesis.
A protective outer covering of all cells
(plant and animal)
that is responsible for regulating
what enters and exits the cell.
Organelle that controls all the activities of a cell and contains genetic material made of proteins and DNA.
Organelle that breaks down food
and releases energy for the cell. Referred to as the powerhouse of the cell because energy is given to cell.
mitochondria where molecules of
food undergo chemical reactions
with oxygen, releasing stored energy.
A group of similar cells that perform a common function.
A collection of tissues that carry out a specialized function of the body.
A group of organs working together to perform a particular body function.
The circulatory system functions to transport blood and oxygen from the lungs to
the various tissues of the body. The heart pumps the blood throughout the body.
The system in the body composed of muscle cells and tissues that brings about movement of an organ or body part.
The system by which oxygen is taken into the body
and an exchange of oxygen and carbon dioxide
takes place. Its main organ is the lungs.
The system in the body responsible for getting food into the body, processing
it into energy and removing undigested material.
The system of the body that filters the blood
and removes waste. The main organs are the
The network of nerve cells and fibers
that transmits nerve impulses between parts of the body and receives, interprets, and responds to stimuli. This system is made up of the brain, spinal cord, and nerves.
Nerve Cell (neuron)
A messenger cell that carries signals to and from the brain to other parts of the body.
Sensory receptors respond to stimuli by sending messages to the brain for immediate behavior or storage as memories.
entering the body using vibrations using the ears and skin.
entering the body using waves through the eyes
entering the body using chemical molecules through the nose and mouth
Memory is the capacity we have to remember things that happened in the past, or that will happen in the future.
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