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24 terms

Biology study guide part 1

STUDY
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Unicellular
Consisting of a single cell.
Species
Distinct form of life.
DNA
The chemical responsible for inheritance.
Quanitive and Qualitative
What are three types of data?
Inference
A logical conclusion based on observations.
Independent Variable
What is changed or what is being experimented on.
Protons, electrons, neutrons
What are three things atoms are made of?
Because Ice is less dense than water.
Why does ice float?
Water
What is the universal solvent?
Acid
A compound that donates H+ ions to a solution.
Covalent bond
chemical bond that forms when two atoms share electrons.
solute+solvent=solution
Equation for a solution.
Saturated fat
fat in which all three fatty acid chains contain the maximum possible number of hydrogen atoms (Solid at room temp.)
Unsaturated fat
fat with less than the maximum number of hydrogens in one or more of its fatty acid chains (Liquid at room temp.)
Glycogen, cellulose, and starch
What are three polysaccharides?
glycogen
polysaccharide in animal cells that consists of many glucose monomers.
Cellulose
polysaccharide consisting of glucose monomers that reinforces plant-cell walls.
Starch
polysacchuride found in plant cells that consists entirely of glucose monomers.
lowering energy requirement barrier so that the reaction can proceed at normal cell temp.
How does an enzyme speed up a reaction?
They are made up of a set of 20 kinds of monomers called amino acids
What are protiens made of?
An unfavorable change in temp. pH or some other quality of the environment.
What would make a protein unravel?
Active site
region of an enzyme into which a particula substrate fits.
Dehydration reaction
two monomers bond to each other making a polymer chain longer. The reation rease a water molecule.
hydrophilic
"water loving"