Living Things
In order to be considered living, an organism must have one or more of these.
What are cells?
This invention helped scientists discover cells.
What is the microscope?
A cell that has a nucleus is called a __________ cell.
What is a eukaryotic cell?
The thin layer that surrounds the cell and controls what enters and leaves.
What is the cell membrane?
Which two parts do you hold when carrying a microscope?
What are the arm and the base?
Living things must be able to do this to increase in size and complexity.
What is grow and develop?
This scientist first observed cork cells under a microscope in 1665.
Who is Robert Hooke?
A cell that does not have a nucleus is called a __________ cell.
What is a prokaryotic cell?
The structure that contains the cell’s DNA.
What is the nucleus?
The slide sits on this flat surface.
What is the stage?
Living things can make more of their own kind by doing this.
What is reproduce?
The three main parts of the Cell Theory are: All living things are made of cells, cells come from pre-existing cells, and ____.
Cells are the basic unit of life.
Organisms made of just one cell are called __________.
What are unicellular organisms?
The jelly-like substance inside the cell that holds organelles in place.
What is the cytoplasm?
You look through this part to see the specimen.
What is the eyepiece?
True or False: All living things must have a nucleus.
What is false?
True or False: Cells can come from nonliving things.
What is false?
Organisms made of many cells are called __________.
What are multicellular organisms?
This rigid outer covering is found only in plant cells.
What is the cell wall?
This part rotates to change magnification.
What is the nosepiece (objective lens holder)?
What are the building blocks of life?
What are cells?
Name one scientist (other than Hooke) who contributed to the Cell Theory.
Who is Schleiden, Schwann, or Virchow?
Put these in order from smallest to largest: cells, tissues, organs, organ systems.
What is cells → tissues → organs → organ systems?
These green structures in plant cells use sunlight to make food.
What are chloroplasts?
This organelle is found in BOTH animal and plant cells.
What is the nucleus, cell membrane, cytoplasm or mitochondria? (Other answers can also be true.)