cell theory
Composed of one cell
what is unicellular ?
This organelle is found in both plant and animal cells and controls the movement of substances in and out of the cell
What is the cell membrane?
This organelle is found in plant but not animal cells and provides protection and structure for the cell.
What is the cell wall?
This is the first phase of mitosis when chromosomes become visible.
What is prophase?
Diffusion is the movement of molecules from an area of ______ concentration to an area of ______ concentration.
high to low
Cell theory states that, "All cells come from...."
What is other cells?
This organelle transports ribosomes throughout from the nucleus to the rest of the cell and acts as a conveyor belt.
What is an endoplasmic reticulum?
Plant cells have a larger one of these because they need more storage of what.
What is a vacuole and water?
During this phase, chromosomes line up in the middle of the cell.
What is metaphase?
Water moves across a membrane by a special type of diffusion called what?
What is osmosis?
Composed of many cells that may organize into to tissue
what is multicellular ?
This a jelly-like substance that fills the cell and helps it hold its shape.
What is cytoplasm?
This cell is circular in shape and does not have a cell wall.
What is an animal cell?
In this final phase, two new nuclei form around the chromosomes.
What is telophase?
Diffusion is a type of this kind of transport that does not require energy.
What is passive transport?
True or False : Eukaryotic cells have a nucleus
True
This small organelle is often referred to as the factory worker making proteins
What are ribosomes?
The powerhouse of the cell
What is the mitochondria ?
Before mitosis begins, this phase of the cell cycle occurs, where DNA is copied.
What is interphase?
The main goal of diffusion is to use a channel or tunnel to help with crossing the membrane
What is facilitated diffusion?
True or False : ALL cell have genetic material
TRUE
This power making organelle is only in plants and uses sunlight for energy.
Makes the rRNA and DNA ; the boss of the cell
What is the nucleolus ?
Once the cell is divided these two identical cells are produced which are called _______
What are daughter cells?
If molecules move against the concentration gradient, energy is needed — this is called what?
What is active transport?