bio Flashcards
(29 cards)
Atoms
building blocks of matter
Molecules
More than one element/atom bonded together
Cell organelles
Parts that make the cell like:Nucleaus, Cell,membrane,Chloroplast
Cells
Building blocks of life – smallest living thing is made of one cell – humans are made of billions
Biosphere
Biosphere
the regions of the surface, atmosphere, and hydrosphere of the earth
Biodiversity
enormous variety of life on Earth
Species
Living organisms of the same kind
dependent variable
A dependent variable changes according to the independent variable
Controlled variable
doesn’t change throughout the experiment.
Constant
stays the same
Proton
Proton:is a positively charged subatomic particle
Neutron
Neutron:neutrally charged subatomic particle
Electron
Electron: negatively charged subatomic
particle.
Low pH solution has a higher or lower hydrogen ion concentration
Higher
Why is pH important to living organisms?
helps cells regulate the changes in pH and keeps them in a safe limited rang.
In what range must human cells exist?
They must exist between 7.35 to 7.45.
carbohydrate
can be broken down to provide usable chemical energy for cells. I
lipid
Nonpolar molecules that include fat and oils. Its monomer is glycerol and fatty acids. Its polymer is triglycerides.
protein
protein - The most varied carbon-based molecules; in movement, sight, etc. Proteins are polymers made up of monomers called amino acids.
nucleic acid.
nucleic acid - They contain detailed instructions to build protein. Nucleic acids are polymers made up of monomers called nucleotides.
Why is carbon such an important molecule in biology?
It is considered the building blocks of life and its structure gives it unique properties.
Reactants vs. products
Reactants change in a chemical reaction. Products is the result of the chemical reaction.
What is activation energy?
Activation energy is amount of energy that needs to be absorbed for a
chemical reaction to start.
What is dynamic equilibrium?
State of balance between continuing processes
