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Experimental Design
Biology: study of life
atomic stuff
carbon compounds
potpourri
100
This is the variable that scientists change or test in an experiment
What is a independent variable?
100
On particular type of living thing whose members can interbreed and reproduce fertile offspring.

a) community

b) organism

c) mutualistic

d) species

d) species
100
atoms are composed of

a) neutrons

b) electrons

c) protons

d) all of the above

d) all of the above
100
These are protein monomers
What are amino acids?
100
A solution with a concentration of H+ ions LOWER than water is considered to be this.

a) basic

b) neutral

c) acid

d) polar

What is basic?
200
The variable data collected and measured in an experiment is the ____________ variable
dependent variable
200
Scientists test their hypothesis by performing

a) observations

b) conclusions

c)experiments

d)analysis

c) experiments
200
Identify the reactants and products of this reaction. For 200 bonus points name the enzyme that helps run the reaction H2 O2 ----> H2O + O2
reactants are hydrogen peroxide H2O2 products are water and oxygen catalase is the enzyme that helps run this reaction fast!
200
A monosaccharide is an example of this.

a) lipid

b) protein

c)nucleic acid

d) carbohydrate

What is a carbohydrate.
200
If salt is dissolved in water, the water is considered to be this. (in a solution)
What is a solvent?
300
The parts of an experiment that are kept the same throughout ______________
What are the constants
300
The maintenance of constant internal conditions is called

a) homeopathy

b) homeostasis

c) adenopathy

d) sarcoma

b) homeostasis
300
A molecule that has a partial positive charge on one side and a partial negative charge on the other side is called a ________ molecule

a) nonpolar

b) polar

c) bipolar

d) charged

b) polar
300
Unsaturated fatty acids have at least one __________ carbon-carbon bond(s)

a) single

b) double

c)triple

d)both double and triple

b) double bond
300
Amylase is an enzyme that breaks down starch into its monomer

a) cellulose

b) glycogen

c) glucose

d) amino acids

c) glucose
400
put these in order for 400 points (scientific method)

a) conclusion (accept/reject hypothesis)

b) data analysis

c) experiment

d) hypothesis

e) observation/problem

e, d, c, b, a
400
This is a piece of DNA that stores genetic information

a) gene

b) RNA

c) neuron

d) one nucleotide

a) gene
400
An atom that has gained or lost one of more electrons

a) molecule

b) ion

c)compound

d) solute

b) Ion
400
A molecule shaped like a spiral staircase (double helix) is typical of

a) carbohydrates

b) ribonucleic acid

c)deoxyribonucleic acid

d)lipids

c) DNA
400
___________ _________change substances into different substances by breaking/forming chemical bonds
chemical reactions
500
I wanted to test if different amounts of fertilizer (1-5 grams) added to soil would affect how many leaves rose plants produced. The experiment lasted 25 days. The dependent variable is: ________________
amount of leaves produced
500
A proposed explanation for for a wide range of experimental observations and results is called

a) a hypothesis

b) data

c) inference

d) theory

d) theory
500
The attraction among molecules of different substances is called ______________ while the attraction among molecules of the same substance is called ____________
adhesion /////cohesion
500
The shape of a protein is primarily determined by

a) its size

b) its cell location

c)the type and sequence of amino acids

d)none of these

What are nucleotides.
500
Reducing activation energy

a) occurs only when reactants are quickly added to the reaction mixture

b) is a violation of chemical laws

c)is accomplished by the action of enzymes

d)requires higher temperatures than can be found in the cell

c) action of enzymes