Intro to Cells
The basic unit of structure and function in living things.
What is a cell?
The two organelles that are ONLY found in PLANT cells.
What are chloroplasts and cell wall?
The movement of materials across the cell membrane without using energy from the cell.
What is Passive Transport?
The movement of materials from a low concentration to high concentration that requires energy.
What is Active Transport?
Organism made of one cell.
What is a unicellular organism?
The two categories that cells are split into.
What are prokaryotes and eukaryotes?
The organelle that contains the cell's DNA and coded instructions.
What is the nucleus?
The process by which particles move from an area of high concentration to lower concentration.
What is diffusion?
The process of taking material into the cell.
What is endocytosis?
Organism made up of many cells that work together.
What is a multicellular organism?
Cells that do not have a nucleus.
What are prokaryotes?
The organelle that controls the flow of materials in and out of the cell.
What is the cell membrane?
Protein channels for water molecules.
What are aquaporins?
The process of releasing material out of the cell.
What is exocytosis?
Group of similar cells that performs a particular function.
What is a tissue?
Cells that contain a nucleus.
What are eukaryotes?
The organelle that contain digestive enzymes.
What are lysosomes?
What is osmosis?
The process when molecules are carried by _____ in the membrane.
What are protein channels/protein pumps?
Constant internal physical and chemical conditions that organisms maintain.
What is homeostasis?
3 points that make up Cell Theory.
What is:
1. All living things are made up of cells.
2. Cells are the basic units of life.
3. New cells are produced from existing cells.
The organelle that produces proteins by following instructions from the DNA.
What are ribosomes?
The concentration of solute is higher outside the cell than inside the cell.
What is hypertonic?
An example of a molecule that is pumped through the protein pumps through active transport.
What is calcium/potassium/sodium?
The three levels of organization that multicellular organisms are organized into. (IN ORDER)
What are tissue to organ to organ system?