Bio 101 Blinderman Worksheet Unit 1 3
Name ______
1. Arrange in the correct order from least to most complex
cell organism ecosystem population biosphere organelle tissue organ system
2. Arrange in the correct order from least to most complex
Amino acid nitrogen atom protein polypeptide
3. Place in the correct order from least to most complex
Chromosome Gene Nucleotide Genome Deoxyribose sugar molecule
4. Place in the correct order of energy flow through and ecosystem
consumer sunlight producer secondary consumer decomposer
5. Match the molecule to the function
_____ carries the code for primary structure of protein A. phospholipid
_____ product of photosynthesis B. DNA
_____ allows cohesion to aid transport in plants C. Cellulose
_____ the solvent in aqueous solutions D. Saturated Fat
_____ a storage polysaccharide E. Water
_____ a structural polysaccharide F. Water
_____ hydrophobic biomolecule with maximum H G. Glycogen
_____ major component of membrane bilayer H. C6H12O6
6. A double-blind controlled trial was conducted to test methods of transmission of viruses and the protective ability of vitamin C. 24 male volunteers were recruited for the study. Half of the men were pretreated for 3 weeks with 2,000 mg of vitamin C daily (4 X 500 mg) and the other half were given 4 placebo pills daily. The men were all infected with RV16 cold virus by direct inoculation into the nose. The men were observed for 7 days and during the week continued to take the pills. All developed colds.
a. Identify the hypothesis
b. Identify the experimental variable in the experiment:
c. Identify the control group:
d. List 3 controlled variables
e. What is the dependent variable (what is measured)?
f. Why is the data considered to be quantitative?
g. Was the hypothesis supported, or was it falsified?
7. Organic?
8. Circle the functional groups
What is the molecular formula for this molecule?
9. Add the appropriate number of hydrogen atoms to this organic molecule. Remember, each carbon must have 4 bonds C-C-C-C
10. Fill in the number
Thousands 3 20 12
75% 4 37
1 7 1.8 million
_____ Amount of the Earth covered by water
_____ Body temperature in degrees Celsius
_____ Neutral pH
_____ Hydrogen atoms in glucose
_____ Glucose units in starch
_____ Types of nucleotide bases that compose DNA
_____ Named species on earth .
_____ Domains of life
_____ Amino acids
_____ Cells in a bacteria
11. List 1 organism (common name) that represents each of the following taxonomic categories
a. Domain Bacteria ______Domain Eukarya ______
b. Kingdom Fungi ______Kingdom Plantae ______
c. Kingdom Protista ______
12. Fill in the corresponding strand of DNA. Follow the rules of nucleotide base complementation in which a certain purine hydrogen bonds to a certain pyrmidine
T T A G C C C A T T G C
13. Hydrophilic or hydrophobic?
Unsaturated fat ______
NaCl ______
Monosaccharide ______
Triglyceride ______
14. Place and X by the statements that ARE consistent with natural selection.
Traits vary in populations in a non-random fashion
More offspring are generated than can survive and there is competition for resources
The strongest always reproduce the most
Traits are heritable
Over time, more individuals in a population will have the advantageous traits
Organisms can pass on traits that were acquired in life
Ancestral species cannot give rise to descendant species
Fossils provide evidence of organisms that once populated earth
15. Circle the words not associated with proteins (may choose more than one)
Polypeptide b sheet Peptide bond
Organic Chitin Hemoglobin and melanin
Amino acid Polymer Biomolecule
Enzyme Nucleic acid Disaccharide
Steroid 20 building blocks Tertiary structure
16. What is the name of the functional group?
-CH3 -COOH -PO4
-SH -C=O -OH
-NH2
17. Fill in using the word bank
Trace element Atom Electron Hydrogen
Isotope Matter Reactant Compound
Isomer Ionic Covalent
______takes up space and has mass
______required by the body in very small amounts
______composed of two or more elements in a fixed ratio
______a strong bond due to electron sharing
______a weaker bond in which charged molecules are attracted
______a negatively charged subatomic particle
______an element whose atoms differ in the number of neutrons
______starting material in a chemical reaction
______two molecules with the same molecular formula, but different structural
______bond between T and A nucleotides in a DNA molecule
______smallest unit of matter that still retains the properties of the element
18. Fill in
Temperature Specific heat Buffer
Evaporative cooling Heat Surface tension
a. Cohesion of water molecules at the water/air interface ______
b. Amount of heat absorbed or lost for 1 g to change temperature by 1ºC ______
c. Lowering of temperature upon the transformation of water from liquid to gas ____
d. Intensity of heat dependent on movement of molecules ______
e. Will stabilize pH of an aqueous solution ______
f. Total amount of energy due to molecular motion ______
19. Monomer or polymer
a. Starch e. DNA i. Chitin
b. Polysaccharide f. Nucleotide j. Glycogen
c. Glucose g. Amino acid k. G, A, T, and C
d. Lactose h. Cellulose l. Sucrose