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Human Systems

Final Exam Dr Laser

The Study of the natural world Science
The study of living organisms and life's process Biology
Regulating the internal environment despite changes in the external enviorment Homeostasis
The way scientific knowledge is acquired Scientific Method
Elements that combine to produce molecules of life Proteins, Lipid, Nucleic Acid, and Carbohydrates
Hierarchial system from largest to smallest Domain, Kingdom, Phylum, Class, Order, Family, Genius, Species
Three domains Bacteria, Archaea, Eukarya
Domain(s) that are/is single celled, no nucleus (prokaryotic) Bacteria and Archaea
Domain(s) that have/has nucleus Eukarya
Four kingdoms of Eukarya Protista, Animalia, Fungi, and Planate
Defining characteristics of humans Bipedalism, Opposable thumbs, Large brains, and language
Biological level of organization from smallest to largest Molecules and Atoms, Cells, Tissues, Organ, Organ system, Organism, Population, community, Ecosystem, Biosphere
What is the Scientific Method 1.Observe, 2.Make a hypothesis, 3.Make a prediction, 4.Experiment, 5.Modify hypothesis if needed
Substance that speeds up a chemical reaction catalyst
Electron sharing bonds between atoms covalent bond
oppositely charged regions of a polar molecule that contain covalently bonded hydrogen hydrogen bond
two oppositely charged ions come together ionic bond
ions that have the same atomic mass but different atomic weight isotope
stored energy that isn't preforming work potential energy
liquid in which another substance dissolves solvent
any dissolved substance solute
the number of protons in an atom equal... atomic number
the number of neutrons and protons equal... atomic weight
the capacity to do work energy
work in motion kinetic energy
elements that mainly make up the human body calcium, carbon, hydrogen, nitrogen, oxygen, phosphorous
hydrophillic molecules molecules that love the water and are attracted to it
hydrophobic molecules molecules that fear the water and are repelled by it
__________ donate hydrogen ions acids
__________ accept hydrogen ions bases
expresses the hydrogen-ion concentration PH scale
__________ minimize the change in PH when either an acid or base is added buffers
smaller molecules are joined by covalent bonds dehydration synthesis
"simple sugars" monosaccharides
more than one monosaccharide linked together oligosaccharides
relatively insoluble molecules lipids
DNA bases Adenine, Guanine, Cytosine, Thymine
moves substances against the concentration gradient active transport
moves material into the cell endocytosis
moves material out of the cell exocytosis
cells refining, packaging and shipping center Golgi apparatus
net diffusion of water across a selectively permeable membrane osmosis
composed of RNA, and attached to the ER Ribosomes
lack a nucleus and organelles prokaryotes
have a nucleus, cytoplasm and organelles eukaryotes
___________ transport requires no energy passive
____________ trasnport moves substances through the plasma against their concentration gradient active
helps maintain cell's volume sodium potassium pump
controls the cell and houses the DNA nucleus
responsible for protein synthesis inside the cell ribosomes
manufacturing center inside the cell endoplasmic reticulum
involved in the synthesis of protein released into the ER inside the cell rough ER
synthesizes packaging the proteins and lipids for delivery into the GA inside of the cell smooth ER
membrane bound shipping containers inside of the cell vesicles
provide energy for the cell mitochondria
sources of energy inside of the cell fat and glycogen
move materials along the surface cilia
help move the actual cell flagella
Created by: LauraMegan