The smallest functional and structural unit of all living organisms.
What is a cell?
100
Eukaryote and Prokaryote cells.
What are the two types of cells?
100
True.
True or False: the mitochondria is the "power house" of all cells, and cellular respiration occurs here.
100
Group of similar cells that perform a common function.
What is a tissue?
200
Any living thing.
What is an organism?
200
False.
True or False: all cells contain their DNA in a nucleus?
200
Make proteins by putting together chains of amino acids encoded in the cells DNA.
What do ribosomes do?
200
A structure made up of a collection of tissues that perform a specialized function.
What is an organ?
300
Because their size is limited by their outer surface area.
Why are most cells small?
300
The region enclosed by the cell membrane that includes the fluid and organelles of the cell.
What is the cytoplasm?
300
False.
True or False: the endoplasmic reticulum (ER) is responsible for packaging and distributing materials, such as proteins.
300
Group of organs that work together to perform body functions.
What is an organ system?
400
Robert Hooke
Who was the first person to see cells under a microscope and describe them.
400
The protective layer that covers a cell's surface and acts like a barrier between the inside of a cell and its environment. It controls what enters and leaves the cell.
What is the cell membrane?
400
Large Central Vacuole.
What vacuole is found in plant cells?
400
Circulatory System.
What system delivers blood and nutrients throughout the body?
500
True.
True or False: all cells come from existing cells.
500
All organisms are made up of one or more cells, the cell is the basic unit of all organisms, and all cells come from existing cells.
What are the three concepts of the cell theory?
500
They are organelles that break down worn out or damaged organelles, waste materials, and foreign invaders in the cell. It is found only in animal cells.