Characteristics of Life
What is synthesis?
The process of making or building new molecules
What is the basic (smallest) unit of life?
Cells
What organelle is the control center of the cell?
Nucleus
This organelle is responsible for making proteins.
Ribosomes
Diffusion
Which characteristic of life means to give off waste?
Excretion
What are multiple tissues working together called?
Organs
This organelle is responsible for making the cell's energy (the powerhouse of the cell).
Mitochondria
What is the function of the cell membrane?
To control what goes in and out of the cell
What type of molecules move during osmosis?
Nutrition is...
the process of obtaining necessary molecules from the environment to make energy.
What do you call multiple cells working together?
A tissue
What organelle is the location where photosynthesis happens.
The chloroplast
What organelle packages and sends out proteins?
Endoplasmic reticulum
Equilibrium means...
Balance, equal molecules on both sides of the cell membrane
What level of organization is smaller than a cell?
Organelles
Breaks down waste in the cell
What is the cytoplasm?
The jelly-like substance that surrounds the organelles
What are two differences between active transport and diffusion?
1) In diffusion, molecules move from high to low concentration while during active transport, molecules move from low to high.
2) In diffusion, no energy is needed. Active transport uses energy.
What is metabolism?
All chemical reactions taking place in an organism.
What is it called when multiple organ systems work together?
What organelle is smaller in animal cells than in plant cells?
Vacuoles
Name two organelles that plant cells have that animal cells do not.
Cell wall & chloroplasts
What is the energy source for active transport?
ATP