Cells & Life
What does Biology mean?
The study of living things.
What jelly-like material is inside a cell?
Cytoplasm
What are the two main types of cells?
Prokaryotic and eukaryotic.
Bacteria are prokaryotic or eukaryotic?
Prokaryotic.
Are all bacteria harmful?
No.
What are the building blocks of life?
Cells.
What protects the outside of the cell?
Cell Membrane
Which type of cell has a nucleus?
Eukaryotic.
Do bacteria have a nucleus?
No.
What are disease-causing microorganisms called?
Pathogens.
Put these in order from smallest to largest: organ, cell, tissue, organism, organ system.
Cell → Tissue → Organ → Organ System → Organism.
What does the cell membrane control?
What goes in and out of the cell.
Which type of cell does NOT have a nucleus?
Prokaryotic.
What does unicellular mean?
One cell.
What medicine is used to treat a bacterial infection?
Antibiotics.
Several tissues together make what?
An organ.
What is the control center of a eukaryotic cell?
Nucleus.
Plant and animal cells are what type of cell?
Eukaryotic.
What invention helped people discover bacteria?
The microscope.
Are viruses considered living things?
No, because they do not have all 8 characteristics of life.
Name 3 characteristics of life.
cells, DNA, reproduction, growth and development, materials for energy, homeostasis, response to environment, evolution.
Name the 3 structures all cells have.
Cell membrane, DNA, and cytoplasm.
What is the MAIN difference between prokaryotic and eukaryotic cells?
Eukaryotic cells have a nucleus; prokaryotic cells do not.
Name the 3 bacteria shapes on your study guide.
Coccus, bacillus, and spirilla.
What two things make up the structure of a virus?
Protein coat and DNA.