Characteristics of Life
Name 2 of the 6 characteristics of life.
Made of cells, Respond to stimuli, Use energy, Grows and develops, Reproduces, Maintains homeostasis
What is the main function of carbohydrates in the body?
Provide energy
What is the basic unit of structure and function in living things?
The cell
What process do plants use to make food from sunlight?
Photosynthesis
A group of cells that work together is called a _______.
Tissue
What does it mean for something to be "once living"? Give an example.
It was alive before but isn't now
Wood, Paper, Fossil, etc.
What biomolecule stores genetic information?
Nucleic acids (DNA/RNA)
What structure surrounds and protects the cell?
Cell membrane
What is osmosis? Is it active or passive?
The PASSIVE diffusion of water across a membrane
An organ system is made up of several _______ working together.
Organs
What is homeostasis?
Maintaining a stable internal envrionment
Proteins are built from small units called _________.
Amino acids
What cell part is known as the "control center"?
Nucleus
What is the difference between active and passive transport?
Active requires energy; passive does not
What is cell differentiation?
Process by which unspecialized cells become specialized
Give one way to test if something is living.
Check if it has all 6 characteristics of life
What type of biomolecule makes up most of the cell membrane?
Lipids (phospholipids)
What is the main difference between prokaryotic and eukaryotic cells?
Prokaryotes lack a nucleus and membrane-bound organelles; Eukaryotes have those things
What is cellular respiration?
The process animal cells use to break down glucose for energy
What is the difference between unicellular and multicellular organisms?
Unicellular: one cell does all jobs
Multicellular: many specialized cells with different jobs
Why is a virus usually not considered living?
It cannot reproduce on its own and lacks other characteristics of life.
Name all 3 major biomolecules found in living things (Bonus if you can name the 4th)
Carbohydrates, lipids, proteins
Bonus: Nucleic Acids
What is the function of chloroplasts?
To carry out photosynthesis in plant cells
In which organelle does cellular respiration mainly take place?
Mitochondria
Name the organization of the body in the correct order starting with Cell
Cell -> Tissue -> Organ -> Organ System -> Organism