Biol 213 Practice Exam 1 2026 NEWEST UPDATE EXAM 2026| most
possible questions and answers on last page George Mason University
Choose the BEST answer to the following questions in 1 minute per question or less!
1. Which represents the correct order of biological organization (from simplest to most complex)?
a. cells, molecules, atoms, organ systems, tissues, organism
b. molecules, atoms, cells, tissues, organ systems, organism
c. organism, organ systems, tissues, cells, molecules, atoms
d. atoms, molecules, cells, tissues, organ systems, organism
e. atoms, molecules, organ systems, tissues, cells, organism
2. Which of the following is/are features of scientific hypotheses?
a. They are based on observations.
b. They make predictions.
c. They can be tested by experimentation.
d. Answers A and B are correct.
e. All of the above are correct
3. The “Cell Theory” of all life on earth was first described by?
a. Hershey and Chase.
b. Luois Pasteur.
c. Watson and Crick
d. Lerner and Loewe.
e. Schleiden and Schwann
4. Which of the following are characteristics of all living things?
a. They evolve.
b. They can harness energy and use it to create complex molecules and structures.
c. They move within their environment.
d. Answers A and B are correct.
e. All of the above are correct.
5. Which of the following functional groups is frequently transferred from one molecule to another and is
considered the “energy currency” of living cells?
a. carboxyl
b. amino.
c. hydroxyl.
d. phosphate.
e. ketone.
6. Molecules containing an amino group would be?
a. a weak base.
b. a weak acid.
c. involved in reactions forming more simple molecules.
d. nonpolar and non-charged.
e. highly insoluble in water.
, 7. Which of the following is a correct monomer/polymer pairing?
a. Monosaccharide/triglyceride
b. Amino acid/protein
c. Triglyceride/cellulose
d. Nucleotide/polysaccharide
e. Monosaccharide/protein
8. During the formation of a peptide linkage, a(n) is/are formed.
a. molecule of water
b. covalent bond
c. disulfide bond
d. answers A and B are correct
e. all of above are correct
9. Enzymes are usually?
a. DNA.
b. lipids.
c. proteins.
d. carbohydrates.
e. amino acids.
10. Which of the following amino acid(s) would be described as non-polar and hydrophobic?
a. Leucine
b. Aspartic acid
c. Serine
d. Arginine
e. Tyrosine
11. Which of the following amino acid(s) would be described as electrically charged (ionic)?
a. Leucine
b. Arginine
c. Methionine
d. Cysteine
e. Threonine
12. Which of the following is NOT found in every amino acid?
a. carbon
b. nitrogen
c. sulfur
d. oxygen
e. hydrogen
13. Which of the following general statements about proteins is FALSE?
a. Some function as enzymes.
b. They can form structural components of the cell.
c. They possess peptide linkages between amino acids.
d. They are highly insoluble in water.
e. They are necessary for immune function in humans (antibodies).
possible questions and answers on last page George Mason University
Choose the BEST answer to the following questions in 1 minute per question or less!
1. Which represents the correct order of biological organization (from simplest to most complex)?
a. cells, molecules, atoms, organ systems, tissues, organism
b. molecules, atoms, cells, tissues, organ systems, organism
c. organism, organ systems, tissues, cells, molecules, atoms
d. atoms, molecules, cells, tissues, organ systems, organism
e. atoms, molecules, organ systems, tissues, cells, organism
2. Which of the following is/are features of scientific hypotheses?
a. They are based on observations.
b. They make predictions.
c. They can be tested by experimentation.
d. Answers A and B are correct.
e. All of the above are correct
3. The “Cell Theory” of all life on earth was first described by?
a. Hershey and Chase.
b. Luois Pasteur.
c. Watson and Crick
d. Lerner and Loewe.
e. Schleiden and Schwann
4. Which of the following are characteristics of all living things?
a. They evolve.
b. They can harness energy and use it to create complex molecules and structures.
c. They move within their environment.
d. Answers A and B are correct.
e. All of the above are correct.
5. Which of the following functional groups is frequently transferred from one molecule to another and is
considered the “energy currency” of living cells?
a. carboxyl
b. amino.
c. hydroxyl.
d. phosphate.
e. ketone.
6. Molecules containing an amino group would be?
a. a weak base.
b. a weak acid.
c. involved in reactions forming more simple molecules.
d. nonpolar and non-charged.
e. highly insoluble in water.
, 7. Which of the following is a correct monomer/polymer pairing?
a. Monosaccharide/triglyceride
b. Amino acid/protein
c. Triglyceride/cellulose
d. Nucleotide/polysaccharide
e. Monosaccharide/protein
8. During the formation of a peptide linkage, a(n) is/are formed.
a. molecule of water
b. covalent bond
c. disulfide bond
d. answers A and B are correct
e. all of above are correct
9. Enzymes are usually?
a. DNA.
b. lipids.
c. proteins.
d. carbohydrates.
e. amino acids.
10. Which of the following amino acid(s) would be described as non-polar and hydrophobic?
a. Leucine
b. Aspartic acid
c. Serine
d. Arginine
e. Tyrosine
11. Which of the following amino acid(s) would be described as electrically charged (ionic)?
a. Leucine
b. Arginine
c. Methionine
d. Cysteine
e. Threonine
12. Which of the following is NOT found in every amino acid?
a. carbon
b. nitrogen
c. sulfur
d. oxygen
e. hydrogen
13. Which of the following general statements about proteins is FALSE?
a. Some function as enzymes.
b. They can form structural components of the cell.
c. They possess peptide linkages between amino acids.
d. They are highly insoluble in water.
e. They are necessary for immune function in humans (antibodies).
