Cell Theory
All living things are made of these.
What are cells?
This part of a microscope is used to look through.
What is the eyepiece?
This structure surrounds the cell and controls what enters and leaves.
What is the cell membrane?
This organelle is known as the control centre of the cell.
What is the nucleus?
This process produces two identical daughter cells.
What is mitosis?
This invention allowed scientists to discover cells.
What is the microscope?
This microscope part holds the slide in place.
What are the stage clips?
This organelle contains the cell's genetic material.
What is the nucleus?
These organelles release energy from food.
What are mitochondria?
Before mitosis begins, the cell copies this.
What is its DNA?
This part of cell theory states that cells come from existing cells.
What is "all cells arise from pre-existing cells"?
This part controls the amount of light passing through a specimen.
What is the diaphragm?
This jelly-like substance fills most of the cell.
What is cytoplasm?
This organelle makes proteins.
What are ribosomes?
This is the number of daughter cells produced during mitosis.
What is two?
This scientist observed cork and coined the term "cell" in 1665.
Who was Robert Hooke?
If a microscope is on the high-power objective, this is the total magnification.
What is 400×?
Plant cells have this structure that animal cells do not.
What is a cell wall?
This organelle stores water and nutrients and is especially large in plant cells.
What is the vacuole?
These daughter cells are genetically _____ to the parent cell.
What is identical?
These three scientists are credited with developing cell theory.
Who are Schleiden, Schwann, and Virchow?
This type of microscope uses electrons instead of light.
What is an electron microscope?
This structure found in plant cells absorbs sunlight for photosynthesis.
What is a chloroplast?
These two organelles are found in plant cells but not animal cells.
What are chloroplasts and the cell wall?
Growth, repair, and replacement of damaged cells are examples of why organisms use this process.
What is mitosis?