8.1 - Cells
The basic units of all living things
What are cells?
This organelle is the control center of the cell and contains its DNA
What is a nucleus?
This type of transport describes particles moving from an area of higher concentration to lower concentration
What is diffusion?
This word describes the internal stable conditions necessary for an organism's survival
What is homeostasis?
This type of transport describes materials being moved from high conc. to low conc. without energy
What is passive transport?
Most cells need this piece of technology to be seen
What is a microscope?
This organelle regulates what enters and leaves the cell
What is the cell membrane?
This type of transport describes when molecules pass across the cell membrane through special protein channels
What is facilitated diffusion?
This level of organization describes a group of similar cells that perform a particular function
What is tissue?
This type of transport describes when materials are moved from low conc. to high conc., requiring energy
What is active transport?
This type of cell encloses its DNA in the nucleus and tend to be found in multicellular organisms
What are eukaryotes?
This organelle is the powerhouse of the cell and converts chemical energy stored in food into usable energy for the cell
What are mitochondria?
This type of transport describes the movement of water through a selectively permeable membrane
What is osmosis?
This level of organization describes many groups of tissues that work together
What is an organ?
This word describes when the solutions on either side of a membrane are the same concentration
What is isotonic?
This type of cell does not enclose its DNA in a nucleus and often describes single-celled organisms
What are prokaryotes?
This organelle produces proteins
What are ribosomes?
This type of transport describes when molecules or ion are carried across a membrane, against the concentration gradient by protein pumps
What is molecular transport?
This level of organization describes a group of organs that work together to perform a specific function
What is an organ system?
This word describes a very concentrated solution
What is hypertonic?
The Cell Theory states that...
1. All living things are made up of cells
2. Cells are the basic units of living things
3. New cells are produced from existing cells
What two organelles are found in plant cells but not in animal cells?
What are chloroplasts and the cell wall?
What is bulk transport?
Single celled organisms maintain homeostasis by growing, responding to their environment, using energy and reproducing
Multicellular organisms maintain homeostasis become specialized to perform specific tasks, communicate, and work with each other
This word describes a very diluted solution
What is a hypotonic solution?