A View Of Life
What is biology?
The study of life
What are organic compounds?
Compounds of which backbone are built of carbon atoms
What is the basic unit of life?
The Cell
What is the function of the cell membrane?
To separate the cell from its external environment
What is a hypothesis?
A tentative explanation for observations or phenomena
Name the 4 macromolecules
Carbohydrates
Nucleic Acids
Proteins
Lipids
What kind of cell has non-membrane bound organelles?
The prokaryote
What is the structure of a phospholipid?
A hydrophilic polar head and 2 hydrophobic non-polar fatty acid chains
Define DNA
A molecule that makes up genes
What are the monomers of protein?
Amino Acids
Name 3 organellles
Etc.
What is osmosis?
The diffusion of water-The net movement of water from a higher concentration to a lower concentration
Name 3 of the 6 characteristics of life
–Are composed of cells
–Grow and develop
–Regulate their metabolic processes
–Respond to stimuli
–Reproduce
–Adapt to the environment
What is adenosine triphosphate (ATP)?
The primary energy molecule of all cells
What is the cell theory?
•Cells are the basic living units of organization and function in all organisms
•All cells come from other cells
•All living cells have a common origin
What does permeability mean?
allow some, but not all, substances to pass through
What are the 5 levels of organisms in order?
Cell
Tissue
Organ
Organ system
Organism
Where can phospholipids be found?
The cell membrane
True or false. Vacuoles are present in all cells including but not limited to human cells.
False
Name the three types of proteins found in within the plasma membrane
Integral proteins
Transmembrane proteins
Peripheral membrane proteins