Quiz 33 Flashcards
What are the four main elements that make up cells?
carbon, hydrogen, oxygen and nitrogen
According to cell theory, cells come from what?
preexisting cells
What are organelles?
“little organs” within a cell
What are structures too small to be easily seen with the naked eye called?
microscopic
Who first saw cork cells?
Robert Hooke
The jellylike liquid that is the largest portion of a cell is called what?
cytoplasm
The part of the cell that controls what enters and exits the cell is called what?
cell membrane
What is the “control center” of the cell called?
nucleus
What are genes?
The units through which characteristics are passed from parents to offspring.
The molecule that stores the genetic information in a cell is called what?
DNA