Scientific Method
Characteristics of Life
pH
O. Compounds
Enzymes
100
hypothesis
What is a scientific prediction called?
100
bacteria, amoebas, some other protists
Give an example of a unicellular organism.
100
power or potential of hydrogen
What does pH stand for?
100
monosaccharides
What are the monomores of polysaccharides?
100
speed up rate fo reaction
What is the purpose of enzymes?
200
dependent variable
What type of factor in an experiment belongs in the second column of the data table?
200
stimulus- environment changes response- changes color
What is the stimulus and resposne for the following exmaple: A chamelon is placed on a tree branch and changes to the color brown?
200
6.5-7.5
What is the pH of blood?
200
store energy, biological membranes, water proofing
Name at least 2 functions of lipids?
200
substrates
What do we call the reactants of a reaction that enzymes catalyze?
300
can only have one independent variable, to know what variable caused results
What is wrong with this experiment? A physiologist studies how eating a meal before exercise affects your speed. Group A is not given a meal prior to exercise, while Group B is given a meal prior. Group A contains 10 males, while Group B contains 5 males and 5 females.
300
ability to maintain stable internal environment
What is homeostasis?
300
10,000 x's
How many more times acidic is a solution with a pH of 1 versus a pH of 5?
300
glucose & fructose
What monosaccharides make up sucrose?
300
active site
Where do substrates attach to the enzyme?
400
compare experimental group 2, "normal"
What is the purpose fo a control group?
400
ability to obtain/use nutrients for energy
What is metabolism?
400
more OH- than H+
What is the ion concentration of a base?
400
amino group, R group, carboxyl group
What are the three monomers of an amino acid?
400
pH
Besides turning them "on" and "off" and temperature, what other environmental factor can affect the functioning of an enzyme?
500
independent: color of light dependent: growth
What is the independent variable and dependent variable for the following: A botanist takes two plants and covers plant A's light with a red transparent sheet, while plant B's light is not covered. Over two weeks, the botanist measures the growth of the plant.
500
NO, cannot reproduce on its own
Is a virus living? Why or why not?
500
stablize pH by removing or adding H+
What is the function of buffers?
500
1 glycerol & fatty acids
What are the monomers of lipids?
500
the altering of the shape of an enzyme due to extreme temperatures
What is denaturation?
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